{"id":50483,"date":"2023-09-20T09:09:27","date_gmt":"2023-09-20T09:09:27","guid":{"rendered":"https:\/\/medsname.com\/tretizen\/"},"modified":"2026-05-01T10:49:10","modified_gmt":"2026-05-01T10:49:10","slug":"tretizen","status":"publish","type":"product","link":"https:\/\/medsbase.com\/cs\/product\/tretizen\/","title":{"rendered":"Tretizen"},"content":{"rendered":"<p><!-- medsbase-tldr-answer --><\/p>\n<div style=\"background:#fff8e1;border-left:4px solid #f5a623;padding:18px 22px;margin:0 0 24px 0;border-radius:4px;\">\n<h3 class=\"wp-block-heading\" style=\"margin:0 0 8px 0;font-size:16px;font-weight:700;\">\u26a1 Rychl\u00e1 odpov\u011b\u010f \u2014 Co je Tretizen?<\/h3>\n<p style=\"margin:0;\"><strong>Tretizen<\/strong> je peror\u00e1ln\u00ed tableta obsahuj\u00edc\u00ed <strong>isotretinoin<\/strong> \u2014 syst\u00e9mov\u00fd deriv\u00e1t vitaminu A (13-cis retinoov\u00e1 kyselina) pou\u017e\u00edvan\u00fd k l\u00e9\u010db\u011b <strong>t\u011b\u017ek\u00e1 nodulocystick\u00e1 akn\u00e9<\/strong>, jizv\u00edc\u00edho akn\u00e9 a akn\u00e9, kter\u00e9 nereagovalo na 6+ m\u011bs\u00edc\u016f lok\u00e1ln\u00ed l\u00e9\u010dby a peror\u00e1ln\u00edch antibiotik. Je to nej\u00fa\u010dinn\u011bj\u0161\u00ed dostupn\u00e1 terapie akn\u00e9: p\u0159ibli\u017en\u011b <strong>85 % pacient\u016f dos\u00e1hne dlouhodob\u00e9 remise<\/strong> po jedin\u00e9 4\u20136 m\u011bs\u00ed\u010dn\u00ed k\u00fa\u0159e p\u0159i kumulativn\u00ed d\u00e1vce 120\u2013150 mg\/kg. Dostupn\u00e9 v <strong>10 a 20 mg<\/strong>. d\u00e1vk\u00e1ch. Typick\u00e9 d\u00e1vkov\u00e1n\u00ed pro dosp\u011bl\u00e9 je <strong>0,5\u20131,0 mg\/kg\/den<\/strong> u\u017e\u00edvan\u00e9 s tu\u010dn\u00fdm j\u00eddlem. <strong>Absolutn\u011b kontraindikov\u00e1no v t\u011bhotenstv\u00ed (FDA kategorie X)<\/strong> \u2014 nej\u00fa\u010dinn\u011bj\u0161\u00ed teratogen v dermatologick\u00e9m formul\u00e1\u0159i. Vy\u017eaduje negativn\u00ed t\u011bhotensk\u00fd test, dv\u011b sou\u010dasn\u00e9 formy antikoncepce po celou dobu l\u00e9\u010dby a alespo\u0148 1 m\u011bs\u00edc po n\u00ed, m\u011bs\u00ed\u010dn\u00ed laboratorn\u00ed monitorov\u00e1n\u00ed (jatern\u00ed testy + lipidy + t\u011bhotensk\u00fd test) a p\u0159\u00edsn\u00e9 vyvarov\u00e1n\u00ed se tetracyklin\u016fm, dopl\u0148k\u016fm s vitaminem A a darov\u00e1n\u00ed krve.<\/p>\n<\/div>\n<div class=\"medsbase-trust-strip\" style=\"background:#f4f8fb;border:1px solid #d8e3eb;padding:12px 16px;margin:16px 0;border-radius:4px;font-size:14px;\">\n<strong>Co z\u00edsk\u00e1te s MedsBase:<\/strong> V\u00fdrobce certifikovan\u00fd WHO-GMP \u00b7 Diskr\u00e9tn\u00ed balen\u00ed \u00b7 Celosv\u011btov\u00e1 doprava \u00b7 V\u00edce ne\u017e 1 400 ov\u011b\u0159en\u00fdch <a href=\"https:\/\/medsbase.com\/cs\/reviews\/\">recenz\u00ed z\u00e1kazn\u00edk\u016f<\/a>\n<\/div>\n<p class=\"medsbase-reship-line\" style=\"font-size:14px;color:#444;margin:8px 0 18px;\">\ud83d\udce6 Ka\u017ed\u00e1 objedn\u00e1vka je pokryta na\u0161\u00ed <a href=\"https:\/\/medsbase.com\/cs\/medsbase-re-shipment-assurance-policy\/\"><strong>Z\u00e1rukou op\u011btovn\u00e9ho odesl\u00e1n\u00ed<\/strong><\/a> \u2014 pokud va\u0161e z\u00e1silka nedoraz\u00ed do 20 pracovn\u00edch dn\u016f, p\u0159epos\u00edl\u00e1me ji.<\/p>\n<h3>Pro\u010d objedn\u00e1vat z MedsBase<\/h3>\n<p>Na\u0161e generick\u00e9 l\u00e9ky poch\u00e1zej\u00ed od v\u00fdrobc\u016f certifikovan\u00fdch WHO-GMP a jsou expedov\u00e1ny po cel\u00e9m sv\u011bt\u011b v diskr\u00e9tn\u00edm, nen\u00e1padn\u00e9m balen\u00ed \u2013 na vn\u011bj\u0161\u00ed stran\u011b bal\u00edku nen\u00ed uveden n\u00e1zev l\u00e9ku. Platby kartou jsou sm\u011brov\u00e1ny prost\u0159ednictv\u00edm regulovan\u00e9ho procesoru (popisky na v\u00fdpisu zahrnuj\u00ed regulovan\u00e9ho procesora plateb kartou \u2013 nikdy \u201cMedsBase\u201d nebo n\u00e1zev l\u00e9ku). P\u0159ij\u00edm\u00e1me tak\u00e9 kryptom\u011bny a bankovn\u00ed p\u0159evody SEPA. Ka\u017ed\u00e1 objedn\u00e1vka je zaji\u0161t\u011bna na\u0161\u00ed politikou p\u0159eposl\u00e1n\u00ed.<\/p>\n<h2 class=\"wp-block-heading\">Co je Tretizen?<\/h2>\n<p>Tretizen je peror\u00e1ln\u00ed tableta obsahuj\u00edc\u00ed <strong>isotretinoin<\/strong> (13-cis retinoov\u00e1 kyselina) \u2014 syst\u00e9mov\u00fd deriv\u00e1t vitaminu A a v sou\u010dasnosti nej\u00fa\u010dinn\u011bj\u0161\u00ed l\u00e9\u010dba akn\u00e9 na trhu. Ka\u017ed\u00e1 tableta dod\u00e1v\u00e1 odm\u011b\u0159enou d\u00e1vku isotretinoinu v m\u011bkk\u00e9 tobolce nebo tabletov\u00e9 form\u011b. Tretizen je cenov\u011b dostupn\u00e1 isotretinoinov\u00e1 tableta v sil\u00e1ch 10 mg + 20 mg, kter\u00e9 pokr\u00fdvaj\u00ed v\u011bt\u0161inu d\u00e1vkovac\u00edch pot\u0159eb dosp\u011bl\u00fdch \u2014 v\u010detn\u011b n\u00edzkod\u00e1vkov\u00fdch protokol\u016f (10\u201320 mg\/den po dobu 9\u201312 m\u011bs\u00edc\u016f) a standardn\u00edch re\u017eim\u016f 0,5 mg\/kg\/den.<\/p>\n<p>Isotretinoin je vyhrazen pro <strong>t\u011b\u017ek\u00e1 nodulocystick\u00e1 akn\u00e9<\/strong>, zjizvuj\u00edc\u00ed akn\u00e9, akn\u00e9 se z\u00e1va\u017enou psychosoci\u00e1ln\u00ed z\u00e1t\u011b\u017e\u00ed nebo akn\u00e9, kter\u00e9 nereagovalo na kompletn\u00ed 6m\u011bs\u00ed\u010dn\u00ed l\u00e9\u010dbu topick\u00fdm retinoidem + benzoylperoxidem + peror\u00e1ln\u00edm antibiotikem. Nen\u00ed to terapie prvn\u00ed volby \u2014 topick\u00fd tretinoin (viz <a href=\"https:\/\/medsbase.com\/cs\/retino-a-cream\/\">Retino-A kr\u00e9m<\/a>), kombinace adapalenu s BPO (<a href=\"https:\/\/medsbase.com\/cs\/epiduo-gel\/\">Epiduo<\/a>, <a href=\"https:\/\/medsbase.com\/cs\/deriva-cms-gel\/\">Deriva CMS<\/a>) nebo peror\u00e1ln\u00ed tetracykliny jsou standardn\u00ed po\u010d\u00e1te\u010dn\u00ed l\u00e9\u010debn\u00e9 postupy.<\/p>\n<h2 class=\"wp-block-heading\">Jak Tretizen funguje?<\/h2>\n<p>Isotretinoin je jedin\u00fd l\u00e9k na akn\u00e9, kter\u00fd sou\u010dasn\u011b \u0159e\u0161\u00ed v\u0161echny \u010dty\u0159i hlavn\u00ed p\u0159\u00ed\u010diny vzniku akn\u00e9:<\/p>\n<ul>\n<li><strong>Potla\u010den\u00ed tvorby mazu<\/strong> \u2014 zmen\u0161uje mazov\u00e9 \u017el\u00e1zy a\u017e o 90 % a sni\u017euje produkci mazu o 80\u201390 % b\u011bhem 4 t\u00fddn\u016f. Hlavn\u00ed d\u016fvod, pro\u010d funguje, kdy\u017e nic jin\u00e9ho nezab\u00edr\u00e1.<\/li>\n<li><strong>Komedolytick\u00fd \u00fa\u010dinek<\/strong> \u2014 normalizuje obm\u011bnu keratinocyt\u016f ve v\u00fdvodu p\u00f3ru, \u010d\u00edm\u017e odstra\u0148uje \u010dern\u00e9 a b\u00edl\u00e9 te\u010dky a zabra\u0148uje vzniku nov\u00fdch komedon\u016f.<\/li>\n<li><strong>Protiz\u00e1n\u011btliv\u00fd \u00fa\u010dinek<\/strong> \u2014 sni\u017euje signalizaci p\u0159es toll-like receptory, chemotaxi neutrofil\u016f a proz\u00e1n\u011btliv\u00e9 cytokiny v pilosebace\u00f3zn\u00ed jednotce.<\/li>\n<li><strong>Antibakteri\u00e1ln\u00ed \u00fa\u010dinek (nep\u0159\u00edm\u00fd)<\/strong> \u2014 such\u00e9 prost\u0159ed\u00ed s nedostatkem mazu vyhladov\u00ed bakterii <em>Cutibacterium acnes<\/em> (d\u0159\u00edve <em>P. acnes<\/em>), \u010d\u00edm\u017e redukuje bakteri\u00e1ln\u00ed populaci bez nutnosti antibiotik.<\/li>\n<\/ul>\n<p>P\u0159ibli\u017en\u011b <strong>85 % pacient\u016f dos\u00e1hne dlouhodob\u00e9 remise<\/strong> po jedn\u00e9 4\u20136 m\u011bs\u00ed\u010dn\u00ed k\u016f\u0159e s kumulativn\u00ed d\u00e1vkou 120\u2013150 mg\/kg. U 20\u201330 % pacient\u016f se objev\u00ed recidiva, kter\u00e1 obvykle reaguje na druh\u00fd, krat\u0161\u00ed cyklus l\u00e9\u010dby.<\/p>\n<h2 class=\"wp-block-heading\">Pou\u017eit\u00ed a indikace<\/h2>\n<ul>\n<li><strong>T\u011b\u017ek\u00e1 nodulocystick\u00e1 akn\u00e9<\/strong> \u2014 hlubok\u00e9, bolestiv\u00e9 cysty a uzly, zejm\u00e9na v oblasti \u010delisti, brady, zad a hrudn\u00edku.<\/li>\n<li><strong>Akn\u00e9 se sklonem ke zjizven\u00ed<\/strong> \u2014 v\u010dasn\u00e9 nasazen\u00ed isotretinoinu zabra\u0148uje trval\u00fdm jizv\u00e1m.<\/li>\n<li><strong>Terapeuticky rezistentn\u00ed akn\u00e9<\/strong> \u2014 ne\u00fasp\u011bch po 6+ m\u011bs\u00edc\u00edch l\u00e9\u010dby topick\u00fdm retinoidem + benzoylperoxidem + peror\u00e1ln\u00edm antibiotikem (tetracyklinov\u00e1 \u0159ada).<\/li>\n<li><strong>Akn\u00e9 konglobata<\/strong> \u2014 t\u011b\u017ek\u00e1 forma akn\u00e9 s tvorbou spl\u00fdvaj\u00edc\u00edch absces\u016f, \u010dasto na z\u00e1dech.<\/li>\n<li><strong>Akn\u00e9 fulminans<\/strong> \u2014 s nutnost\u00ed sou\u010dasn\u00e9ho pod\u00e1v\u00e1n\u00ed peror\u00e1ln\u00edch kortikosteroid\u016f (pouze pod odborn\u00fdm dohledem).<\/li>\n<li><strong>Akn\u00e9 s v\u00fdrazn\u00fdm psychosoci\u00e1ln\u00edm dopadem<\/strong> \u2014 i p\u0159i st\u0159edn\u011b t\u011b\u017ek\u00e9m pr\u016fb\u011bhu, pokud akn\u00e9 zp\u016fsobuje \u00fazkost, depresi nebo dysmorfofobii.<\/li>\n<li><strong>Mimo indikaci:<\/strong> rosacea (zejm\u00e9na fymat\u00f3zn\u00ed), hidradenitis suppurativa, gramnegativn\u00ed folikulitida.<\/li>\n<\/ul>\n<h2 class=\"wp-block-heading\">D\u00e1vkov\u00e1n\u00ed p\u0159\u00edpravku Tretizen a zp\u016fsob u\u017eit\u00ed<\/h2>\n<p><strong>Tretizen<\/strong> je k dispozici v <strong>10 a 20 mg<\/strong> s\u00edle, pokr\u00fdvaj\u00edc\u00ed v\u011bt\u0161inu standardn\u00edch d\u00e1vkovac\u00edch pot\u0159eb dosp\u011bl\u00fdch (0,5\u20131,0 mg\/kg\/den pro pacienta o hmotnosti 60\u201390 kg).<\/p>\n<p><strong>Standardn\u00ed protokol pro dosp\u011bl\u00e9:<\/strong><\/p>\n<ul>\n<li><strong>Po\u010d\u00e1te\u010dn\u00ed d\u00e1vka:<\/strong> 0,5 mg\/kg\/den po prvn\u00ed 4 t\u00fddny. Pro pacienta o hmotnosti 70 kg to znamen\u00e1 p\u0159ibli\u017en\u011b 35 mg\/den (rozd\u011bleno na 20 mg + 10 mg, nebo st\u0159\u00eddav\u011b 30 mg\/40 mg).<\/li>\n<li><strong>Udr\u017eovac\u00ed d\u00e1vka:<\/strong> 0,5\u20131,0 mg\/kg\/den po zji\u0161t\u011bn\u00ed tolerance. Pro pacienta o hmotnosti 70 kg: 40\u201370 mg\/den.<\/li>\n<li><strong>C\u00edlov\u00fd celkov\u00fd kumulativn\u00ed p\u0159\u00edjem:<\/strong> 120\u2013150 mg\/kg b\u011bhem cel\u00e9ho cyklu. Pro pacienta o hmotnosti 70 kg: 8 400\u201310 500 mg celkem, obvykle dosa\u017eeno za 4\u20136 m\u011bs\u00edc\u016f.<\/li>\n<li><strong>D\u00e9lka l\u00e9\u010dby:<\/strong> obvykle 16\u201324 t\u00fddn\u016f. P\u0159ed\u010dasn\u00e9 ukon\u010den\u00ed (p\u0159ed dosa\u017een\u00edm c\u00edlov\u00e9 kumulativn\u00ed d\u00e1vky) je hlavn\u00ed p\u0159\u00ed\u010dinou relapsu.<\/li>\n<\/ul>\n<h3 class=\"wp-block-heading\">Jak spr\u00e1vn\u011b u\u017e\u00edvat Tretizen<\/h3>\n<ol>\n<li><strong>U\u017e\u00edvejte s tu\u010dn\u00fdm j\u00eddlem.<\/strong> Isotretinoin je lipofiln\u00ed \u2014 j\u00eddlo zdvojn\u00e1sob\u00ed jeho absorpci oproti u\u017eit\u00ed nala\u010dno. Standardn\u00ed praxe: u\u017e\u00edvejte s nejv\u011bt\u0161\u00edm j\u00eddlem dne.<\/li>\n<li><strong>Polykejte cel\u00e9 s vodou.<\/strong> Tobolky nerozd\u011blujte, nedr\u0165te ani ne\u017ev\u00fdkejte (u m\u011bkk\u00fdch tobolek). Tablety lze rozd\u011blit, pokud maj\u00ed d\u011blic\u00ed r\u00fdhu.<\/li>\n<li><strong>D\u00e1vkov\u00e1n\u00ed jednou nebo dvakr\u00e1t denn\u011b<\/strong> v z\u00e1vislosti na celkov\u00e9 d\u00e1vce a toleranci. Dvakr\u00e1t denn\u011b (r\u00e1no + ve\u010der) \u010dasto zp\u016fsobuje m\u00e9n\u011b cheilitidy a je \u0161etrn\u011bj\u0161\u00ed k tr\u00e1vic\u00edmu traktu.<\/li>\n<li><strong>Bu\u010fte d\u016fsledn\u00ed.<\/strong> Vynechan\u00e9 d\u00e1vky sni\u017euj\u00ed kumulativn\u00ed d\u00e1vku a \u00fa\u010dinnost. Pokud d\u00e1vku vynech\u00e1te a vzpomenete si do 12 hodin, u\u017eijte ji. Pokud uplynulo &gt;12 hodin, vynechejte a pokra\u010dujte norm\u00e1ln\u011b.<\/li>\n<li><strong>M\u011bs\u00ed\u010dn\u00ed krevn\u00ed testy jsou vy\u017eadov\u00e1ny<\/strong> po celou dobu l\u00e9\u010dby: jatern\u00ed testy (AST, ALT), lipidov\u00fd profil nala\u010dno (triglyceridy, cholesterol) a \u2014 u \u017een v reproduk\u010dn\u00edm v\u011bku \u2014 t\u011bhotensk\u00fd test p\u0159ed ka\u017ed\u00fdm m\u011bs\u00ed\u010dn\u00edm dopln\u011bn\u00edm.<\/li>\n<li><strong>Denn\u011b pou\u017e\u00edvejte jemn\u00fd balz\u00e1m na rty<\/strong> (vazel\u00ednu nebo ceramidov\u00fd balz\u00e1m) \u2014 cheilitida (such\u00e9 popraskan\u00e9 rty) se objevuje t\u00e9m\u011b\u0159 u v\u0161ech od 2. t\u00fddne a je nej\u010dast\u011bj\u0161\u00edm d\u016fvodem pro sn\u00ed\u017een\u00ed d\u00e1vky.<\/li>\n<li><strong>Denn\u011b \u0161irokospektr\u00e1ln\u00ed SPF 30+<\/strong> \u2014 isotretinoin v\u00fdrazn\u011b zvy\u0161uje fotosenzitivitu.<\/li>\n<li><strong>Nevynech\u00e1vejte celou l\u00e9\u010debnou k\u00faru.<\/strong> \u010c\u00e1ste\u010dn\u00e9 k\u00fary (m\u00e9n\u011b ne\u017e 120 mg\/kg celkov\u00e9 d\u00e1vky) maj\u00ed v\u00fdrazn\u011b vy\u0161\u0161\u00ed m\u00edru relaps\u016f.<\/li>\n<\/ol>\n<h2 class=\"wp-block-heading\">Vedlej\u0161\u00ed \u00fa\u010dinky p\u0159\u00edpravku Tretizen<\/h2>\n<p><strong>T\u00e9m\u011b\u0159 univerz\u00e1ln\u00ed (m\u00edrn\u00e9 a\u017e st\u0159edn\u00ed):<\/strong><\/p>\n<ul>\n<li><strong>Cheilitida<\/strong> (such\u00e9, popraskan\u00e9, olupuj\u00edc\u00ed se rty) \u2014 u 90\u2013100 % pacient\u016f. O\u0161et\u0159ujte neutr\u00e1ln\u00edm balz\u00e1mem na rty 6\u20138kr\u00e1t denn\u011b.<\/li>\n<li><strong>Xer\u00f3za<\/strong> (such\u00e1 poko\u017eka, zejm\u00e9na na rukou a obli\u010deji)<\/li>\n<li><strong>Such\u00e9 o\u010di<\/strong> \u2014 u 30 % pacient\u016f. Mohou b\u00fdt nutn\u00e9 lubrika\u010dn\u00ed o\u010dn\u00ed kapky bez konzervant\u016f. Nesn\u00e1\u0161enlivost kontaktn\u00edch \u010do\u010dek je b\u011b\u017en\u00e1.<\/li>\n<li><strong>Epistaxe<\/strong> (krv\u00e1cen\u00ed z nosu) ze such\u00e9 nosn\u00ed sliznice \u2014 aplikujte vazel\u00ednu do nosn\u00edch d\u00edrek.<\/li>\n<li><strong>Po\u010d\u00e1te\u010dn\u00ed vzplanut\u00ed akn\u00e9<\/strong> ve 2.\u20136. t\u00fddnu (asi u 20 % pacient\u016f)<\/li>\n<li>Fotosenzitivita \/ riziko sp\u00e1len\u00ed sluncem<\/li>\n<li>M\u00edrn\u00e9 \u0159\u00eddnut\u00ed vlas\u016f (reverzibiln\u00ed po vysazen\u00ed)<\/li>\n<li>Bolesti sval\u016f nebo kloub\u016f, zejm\u00e9na u aktivn\u00edch sportovc\u016f<\/li>\n<\/ul>\n<p><strong>M\u00e9n\u011b \u010dast\u00e9, ale d\u016fle\u017eit\u00e9:<\/strong><\/p>\n<ul>\n<li><strong>Zv\u00fd\u0161en\u00e9 jatern\u00ed enzymy<\/strong> (5\u201315 % pacient\u016f). Obvykle m\u00edrn\u00e9 a reverzibiln\u00ed.<\/li>\n<li><strong>Zv\u00fd\u0161en\u00e9 triglyceridy<\/strong> (a\u017e u 25 % pacient\u016f). Rizikov\u00fd faktor pro pankreatitidu, pokud triglyceridy p\u0159es\u00e1hnou 800 mg\/dL.<\/li>\n<li><strong>Zv\u00fd\u0161en\u00fd cholesterol<\/strong><\/li>\n<li>Bolest hlavy<\/li>\n<li>Zm\u011bny n\u00e1lady \u2014 sign\u00e1l deprese je kontroverzn\u00ed, ale mus\u00ed b\u00fdt monitorov\u00e1n; okam\u017eit\u011b informujte l\u00e9ka\u0159e, pokud se zm\u011bn\u00ed n\u00e1lada, motivace nebo sp\u00e1nek.<\/li>\n<\/ul>\n<p><strong>Vz\u00e1cn\u00e9, ale z\u00e1va\u017en\u00e9 (vyhledejte l\u00e9ka\u0159skou pomoc):<\/strong><\/p>\n<ul>\n<li><strong>Pseudotumor cerebri<\/strong> (benign\u00ed intrakrani\u00e1ln\u00ed hypertenze) \u2014 siln\u00e9 bolesti hlavy, zm\u011bny vid\u011bn\u00ed, nevolnost. V\u00fdrazn\u011b zv\u00fd\u0161en\u00e9 riziko p\u0159i kombinaci s tetracykliny.<\/li>\n<li>Pankreatitida (obvykle sekund\u00e1rn\u00ed p\u0159i t\u011b\u017ek\u00e9 hypertriglycerid\u00e9mii)<\/li>\n<li>T\u011b\u017ek\u00e1 hepatitida<\/li>\n<li>Sign\u00e1l pro z\u00e1n\u011btliv\u00e9 st\u0159evn\u00ed onemocn\u011bn\u00ed \u2014 kauzalita sporn\u00e1, ale anamn\u00e9za IBD je relativn\u00ed kontraindikac\u00ed<\/li>\n<li>Stevens-Johnson\u016fv syndrom \/ toxick\u00e1 epiderm\u00e1ln\u00ed nekrol\u00fdza (velmi vz\u00e1cn\u00e9)<\/li>\n<li>Sebevra\u017eedn\u00e9 my\u0161lenky \u2014 vz\u00e1cn\u00e9, ale dokumentovan\u00e9; jak\u00e1koli nov\u00e1 zm\u011bna n\u00e1lady vy\u017eaduje okam\u017eit\u00e9 l\u00e9ka\u0159sk\u00e9 vy\u0161et\u0159en\u00ed<\/li>\n<\/ul>\n<h2 class=\"wp-block-heading\">Varov\u00e1n\u00ed a preventivn\u00ed opat\u0159en\u00ed \u2014 KRITICK\u00c9<\/h2>\n<ul>\n<li><strong>T\u011bhotenstv\u00ed: FDA kategorie X \u2014 ABSOLUTN\u00cd KONTRAINDIKACE.<\/strong> Isotretinoin je jedn\u00edm z nejsiln\u011bj\u0161\u00edch zn\u00e1m\u00fdch lidsk\u00fdch teratogen\u016f. I jedin\u00e1 d\u00e1vka v prvn\u00edm trimestru m\u016f\u017ee zp\u016fsobit z\u00e1va\u017en\u00e9 kraniofaci\u00e1ln\u00ed, kardiovaskul\u00e1rn\u00ed a CNS vrozen\u00e9 vady s rizikem ztr\u00e1ty plodu &gt;30%. \u017deny v reproduk\u010dn\u00edm v\u011bku pot\u0159ebuj\u00ed: (1) <strong>dokumentovan\u00fd negativn\u00ed t\u011bhotensk\u00fd test<\/strong> p\u0159ed zah\u00e1jen\u00edm, (2) <strong>dv\u011b sou\u010dasn\u00e9 formy spolehliv\u00e9 antikoncepce<\/strong> (nap\u0159. hormon\u00e1ln\u00ed + bari\u00e9rovou) po celou dobu l\u00e9\u010dby a po dobu nejm\u00e9n\u011b <strong>1 m\u011bs\u00edce po posledn\u00ed d\u00e1vce<\/strong>, (3) <strong>m\u011bs\u00ed\u010dn\u00ed t\u011bhotensk\u00e9 testy<\/strong> b\u011bhem l\u00e9\u010dby. V USA to vynucuje <em>iPLEDGE<\/em> program; EU a Indie maj\u00ed paraleln\u00ed povinn\u00e9 programy prevence t\u011bhotenstv\u00ed.<\/li>\n<li><strong>Ned\u00e1vejte krev<\/strong> b\u011bhem l\u00e9\u010dby a po dobu 1 m\u011bs\u00edce po posledn\u00ed d\u00e1vce \u2014 aby se zabr\u00e1nilo n\u00e1hodn\u00e9 expozici t\u011bhotn\u00e9 p\u0159\u00edjemkyn\u011b transfuze.<\/li>\n<li><strong>Neu\u017e\u00edvejte \u017e\u00e1dnou formu dopl\u0148ku vitaminu A<\/strong> sou\u010dasn\u011b \u2014 aditivn\u00ed toxicita.<\/li>\n<li><strong>Neu\u017e\u00edvejte tetracyklinov\u00e1 antibiotika<\/strong> (doxycyklin, minocyklin, tetracyklin) sou\u010dasn\u011b \u2014 v\u00fdrazn\u00e9 zv\u00fd\u0161en\u00ed rizika pseudotumor cerebri. P\u0159esta\u0148te u\u017e\u00edvat tetracykliny alespo\u0148 2 t\u00fddny p\u0159ed zah\u00e1jen\u00edm l\u00e9\u010dby isotretinoinem.<\/li>\n<li><strong>Du\u0161evn\u00ed zdrav\u00ed:<\/strong> deprese a sebevra\u017eedn\u00e9 sign\u00e1ly, i kdy\u017e nejsou definitivn\u011b kauz\u00e1ln\u00ed, jsou dokumentov\u00e1ny v kazuistik\u00e1ch. Z\u00e1kladn\u00ed a m\u011bs\u00ed\u010dn\u00ed kontroly n\u00e1lady, sp\u00e1nku, motivace a sebevra\u017eedn\u00fdch my\u0161lenek jsou standardem p\u00e9\u010de. P\u0159i jak\u00e9koli v\u00fdznamn\u00e9 zm\u011bn\u011b vyhledejte neodkladnou pomoc.<\/li>\n<li><strong>Onemocn\u011bn\u00ed jater, hyperlipidemie, diabetes:<\/strong> relativn\u00ed kontraindikace. Pe\u010dliv\u011b sledujte jatern\u00ed testy a lipidy. Alkohol \u2264 1 n\u00e1poj\/t\u00fdden b\u011bhem l\u00e9\u010dby.<\/li>\n<li><strong>Historie z\u00e1n\u011btliv\u00e9ho onemocn\u011bn\u00ed st\u0159ev:<\/strong> relativn\u00ed kontraindikace \u2014 kauzalita sporn\u00e1, ale opatrnost je na m\u00edst\u011b.<\/li>\n<li><strong>Depilace voskem, laserov\u00e9 odstran\u011bn\u00ed chloupk\u016f, dermabraze, chemick\u00e9 peelingy, tetov\u00e1n\u00ed:<\/strong> zcela se vyhn\u011bte b\u011bhem l\u00e9\u010dby a po dobu <strong>6 m\u011bs\u00edc\u016f po<\/strong> posledn\u00ed d\u00e1vce \u2014 k\u0159ehkost k\u016f\u017ee a abnorm\u00e1ln\u00ed hojen\u00ed ran b\u011bhem l\u00e9\u010dby a kr\u00e1tce po n\u00ed.<\/li>\n<li><strong>Nositel\u00e9 kontaktn\u00edch \u010do\u010dek:<\/strong> o\u010dek\u00e1vejte intoleranci kv\u016fli such\u00fdm o\u010d\u00edm. Pokud mo\u017eno p\u0159ejd\u011bte b\u011bhem l\u00e9\u010dby na br\u00fdle.<\/li>\n<li><strong>Nep\u0159ekra\u010dujte p\u0159edepsanou kumulativn\u00ed d\u00e1vku<\/strong> bez odborn\u00e9ho dohledu.<\/li>\n<\/ul>\n<h2 class=\"wp-block-heading\">Kontraindikace \u2014 Kdo by NEM\u011aL u\u017e\u00edvat Tretizen<\/h2>\n<ul>\n<li><strong>T\u011bhotenstv\u00ed, pl\u00e1nov\u00e1n\u00ed t\u011bhotenstv\u00ed nebo kojen\u00ed<\/strong> \u2014 absolutn\u00ed kontraindikace<\/li>\n<li>\u017deny v reproduk\u010dn\u00edm v\u011bku, kter\u00e9 nemohou nebo necht\u011bj\u00ed pou\u017e\u00edvat sou\u010dasn\u011b dv\u011b spolehliv\u00e9 formy antikoncepce<\/li>\n<li>Zn\u00e1m\u00e1 p\u0159ecitliv\u011blost na isotretinoin, jin\u00e9 retinoidy nebo s\u00f3ju (mnoho kapsl\u00ed obsahuje s\u00f3jov\u00fd olej)<\/li>\n<li>T\u011b\u017ek\u00e1 jatern\u00ed dysfunkce (Child-Pugh B nebo C)<\/li>\n<li>Nekontrolovan\u00e1 hyperlipidemie (zejm\u00e9na triglyceridy &gt; 500 mg\/dL)<\/li>\n<li>Sou\u010dasn\u00e9 u\u017e\u00edv\u00e1n\u00ed tetracyklinov\u00fdch antibiotik (doxycyklin, minocyklin, tetracyklin)<\/li>\n<li>Sou\u010dasn\u00e9 u\u017e\u00edv\u00e1n\u00ed vitaminu A nad doporu\u010denou denn\u00ed d\u00e1vku<\/li>\n<li>Hypervitamin\u00f3za A<\/li>\n<li>D\u011bti do 12 let (bezpe\u010dnost pro prim\u00e1rn\u00ed akn\u00e9 nebyla stanovena; pou\u017e\u00edv\u00e1 se ve vz\u00e1cn\u00fdch specializovan\u00fdch p\u0159\u00edpadech)<\/li>\n<\/ul>\n<h2 class=\"wp-block-heading\">Interakce s l\u00e9ky a l\u00e1tkami<\/h2>\n<table style=\"border-collapse:collapse;width:100%;margin:12px 0;\">\n<thead>\n<tr style=\"background:#2c7cb0;color:#fff;\">\n<th style=\"padding:10px;border:1px solid #ddd;text-align:left;\">Kombinujte s<\/th>\n<th style=\"padding:10px;border:1px solid #ddd;text-align:left;\">\u00da\u010dinek<\/th>\n<th style=\"padding:10px;border:1px solid #ddd;text-align:left;\">Co d\u011blat<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding:10px;border:1px solid #ddd;\">Tetracykliny (doxycyklin, minocyklin, tetracyklin)<\/td>\n<td style=\"padding:10px;border:1px solid #ddd;\">V\u00fdrazn\u011b zv\u00fd\u0161en\u00e9 riziko pseudotumor cerebri (benign\u00ed intrakrani\u00e1ln\u00ed hypertenze)<\/td>\n<td style=\"padding:10px;border:1px solid #ddd;\"><strong>Nikdy nekombinovat.<\/strong> P\u0159eru\u0161it u\u017e\u00edv\u00e1n\u00ed tetracyklin\u016f 2 t\u00fddny p\u0159ed zah\u00e1jen\u00edm l\u00e9\u010dby isotretinoinem.<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px;border:1px solid #ddd;\">Dopln\u011bk stravy s vitaminem A<\/td>\n<td style=\"padding:10px;border:1px solid #ddd;\">Toxick\u00e1 hypervitamin\u00f3za A z nadm\u011brn\u00e9ho p\u0159\u00edjmu<\/td>\n<td style=\"padding:10px;border:1px solid #ddd;\">P\u0159esta\u0148te u\u017e\u00edvat v\u0161echny dopl\u0148ky s vitaminem A. Omezte potraviny bohat\u00e9 na vitamin A (j\u00e1tra, ryb\u00ed tuk) na b\u011b\u017en\u00e9 mno\u017estv\u00ed.<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px;border:1px solid #ddd;\">Kombinovan\u00e9 peror\u00e1ln\u00ed antikoncepce obsahuj\u00edc\u00ed pouze progestin<\/td>\n<td style=\"padding:10px;border:1px solid #ddd;\">Isotretinoin m\u016f\u017ee sn\u00ed\u017eit \u00fa\u010dinnost progestinu<\/td>\n<td style=\"padding:10px;border:1px solid #ddd;\">V\u017edy pou\u017e\u00edvejte jako dopln\u011bk druhou nehormon\u00e1ln\u00ed metodu (bari\u00e9rovou).<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px;border:1px solid #ddd;\">Progestin v mikro-d\u00e1vk\u00e1ch (\u201cmini-pilulka\u201d)<\/td>\n<td style=\"padding:10px;border:1px solid #ddd;\">Nespolehliv\u00e9 jako jedin\u00e1 antikoncepce p\u0159i u\u017e\u00edv\u00e1n\u00ed isotretinoinu<\/td>\n<td style=\"padding:10px;border:1px solid #ddd;\">P\u0159echod na kombinovan\u00e9 OCP + bari\u00e9rovou metodu, nebo nitrod\u011blo\u017en\u00ed t\u011bl\u00edsko + bari\u00e9rovou metodu.<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px;border:1px solid #ddd;\">Fenytoin a karbamazepin<\/td>\n<td style=\"padding:10px;border:1px solid #ddd;\">Zv\u00fd\u0161en\u00e9 riziko osteomalacie p\u0159i kombinovan\u00e9 terapii<\/td>\n<td style=\"padding:10px;border:1px solid #ddd;\">Dohled specialisty; zva\u017ete vy\u0161et\u0159en\u00ed hustoty kost\u00ed.<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px;border:1px solid #ddd;\">Alkohol<\/td>\n<td style=\"padding:10px;border:1px solid #ddd;\">Aditivn\u00ed hepatotoxicita a zhor\u0161en\u00e1 hypertriglyceridemie<\/td>\n<td style=\"padding:10px;border:1px solid #ddd;\">Omezte na \u2264 1 n\u00e1poj\/t\u00fdden po celou dobu l\u00e9\u010dby.<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px;border:1px solid #ddd;\">Lok\u00e1ln\u00ed retinoidy (tretinoin, tazaroten, adapalen)<\/td>\n<td style=\"padding:10px;border:1px solid #ddd;\">Redundantn\u00ed s peror\u00e1ln\u00edm isotretinoinem \u2013 kumulativn\u00ed vedlej\u0161\u00ed \u00fa\u010dinky bez p\u0159idan\u00e9ho benefitu<\/td>\n<td style=\"padding:10px;border:1px solid #ddd;\">B\u011bhem peror\u00e1ln\u00ed l\u00e9\u010dby p\u0159eru\u0161te aplikaci topick\u00fdch retinoid\u016f.<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:10px;border:1px solid #ddd;\">Methotrex\u00e1t<\/td>\n<td style=\"padding:10px;border:1px solid #ddd;\">Aditivn\u00ed hepatotoxicita<\/td>\n<td style=\"padding:10px;border:1px solid #ddd;\">Kombinaci se vyhn\u011bte; p\u0159i nevyhnutelnosti nutn\u00e1 konzultace specialisty.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 class=\"wp-block-heading\">Pokyny k uchov\u00e1v\u00e1n\u00ed<\/h2>\n<ul>\n<li>Skladujte p\u0159i pokojov\u00e9 teplot\u011b, <strong>15\u201325\u00b0C<\/strong>. Chra\u0148te p\u0159ed teplem a p\u0159\u00edm\u00fdm slune\u010dn\u00edm z\u00e1\u0159en\u00edm.<\/li>\n<li>Uchov\u00e1vejte v p\u016fvodn\u00edm blistru a\u017e do pou\u017eit\u00ed \u2013 isotretinoin se sv\u011btlem degraduje.<\/li>\n<li>Neskladujte v koupeln\u011b. Vlhkost zkracuje trvanlivost.<\/li>\n<li>Uchov\u00e1vejte mimo dosah d\u011bt\u00ed a \u017een v reproduk\u010dn\u00edm v\u011bku, kter\u00e9 nejsou pacientkami.<\/li>\n<li>Nepou\u017e\u00edvejte po uplynut\u00ed data expirace uveden\u00e9ho na obalu.<\/li>\n<li>Nepou\u017eit\u00e9 l\u00e9ky vra\u0165te do l\u00e9k\u00e1rny k odborn\u00e9 likvidaci \u2014 nesplachujte ani nevyhazujte do domovn\u00edho odpadu.<\/li>\n<\/ul>\n<h2 class=\"wp-block-heading\">Souvisej\u00edc\u00ed alternativy na MedsBase<\/h2>\n<p>Dal\u0161\u00ed dostupn\u00e9 varianty peror\u00e1ln\u00edch a topick\u00fdch retinoid\u016f<br \/>\n<strong>tretizen<\/strong>:<\/p>\n<ul>\n<li><a href=\"https:\/\/medsbase.com\/cs\/signatret\/\"><strong>Signatret (isotretinoin 20 mg)<\/strong><\/a><\/li>\n<li><a href=\"https:\/\/medsbase.com\/cs\/accufine\/\"><strong>Accufine (isotretinoin 5 \/ 10 \/ 20 \/ 30 \/ 40 mg)<\/strong><\/a><\/li>\n<li><a href=\"https:\/\/medsbase.com\/cs\/tretiva\/\"><strong>Tretiva (isotretinoin 5 \/ 10 \/ 20 \/ 30 \/ 40 mg)<\/strong><\/a><\/li>\n<li><a href=\"https:\/\/medsbase.com\/cs\/isofair\/\"><strong>Isofair (isotretinoin 10 \/ 20 mg)<\/strong><\/a><\/li>\n<li><a href=\"https:\/\/medsbase.com\/cs\/isopil\/\"><strong>Isopil (isotretinoin 5 \/ 10 \/ 20 mg)<\/strong><\/a><\/li>\n<li><a href=\"https:\/\/medsbase.com\/cs\/glotret\/\"><strong>Glotret (isotretinoin 20 mg)<\/strong><\/a><\/li>\n<li><a href=\"https:\/\/medsbase.com\/cs\/tufacne\/\"><strong>Tufacne (isotretinoin 20 mg)<\/strong><\/a><\/li>\n<li><a href=\"https:\/\/medsbase.com\/cs\/isotroin\/\"><strong>Isotroin (isotretinoin 5 \/ 10 \/ 20 \/ 30 mg)<\/strong><\/a><\/li>\n<li><a href=\"https:\/\/medsbase.com\/cs\/retino-a-cream\/\"><strong>Retino-A kr\u00e9m (topick\u00fd tretinoin 0,025% \/ 0,05%)<\/strong><\/a><\/li>\n<li><a href=\"https:\/\/medsbase.com\/cs\/tazret-forte-cream\/\"><strong>Tazret Forte Kr\u00e9m (tazaroten 0,1%)<\/strong><\/a><\/li>\n<\/ul>\n<p>U\u017eite\u010dn\u00e9 \u010dten\u00ed: <a href=\"https:\/\/medsbase.com\/cs\/isotretinoin-vs-tretinoin\/\">Isotretinoin vs tretinoin \u2014 praktick\u00e9 rozd\u00edly<\/a> \u00b7 <a href=\"https:\/\/medsbase.com\/cs\/tretinoin-cream-vs-gel\/\">Tretinoin kr\u00e9m vs. gel<\/a> \u00b7 <a href=\"https:\/\/medsbase.com\/cs\/everything-you-want-to-know-about-acne\/\">V\u0161e, co chcete v\u011bd\u011bt o akn\u00e9<\/a>.<\/p>\n<h2 id=\"faqs\">\u010casto kladen\u00e9 dotazy<\/h2>\n<h3 class=\"wp-block-heading\">Jak dlouho obvykle trv\u00e1 l\u00e9\u010dba p\u0159\u00edpravkem Tretizen?<\/h3>\n<p>V\u011bt\u0161ina l\u00e9\u010debn\u00fdch k\u00far trv\u00e1 <strong>16\u201324 t\u00fddn\u016f<\/strong> (4\u20136 m\u011bs\u00edc\u016f) s c\u00edlem dos\u00e1hnout kumulativn\u00ed d\u00e1vky 120\u2013150 mg\/kg t\u011blesn\u00e9 hmotnosti. Pro pacienta v\u00e1\u017e\u00edc\u00edho 70 kg u\u017e\u00edvaj\u00edc\u00edho 40 mg\/den to znamen\u00e1 p\u0159ibli\u017en\u011b 5\u20136 m\u011bs\u00edc\u016f. P\u0159ed\u010dasn\u00e9 ukon\u010den\u00ed l\u00e9\u010dby p\u0159ed dosa\u017een\u00edm c\u00edlov\u00e9 kumulativn\u00ed d\u00e1vky je hlavn\u00ed p\u0159\u00ed\u010dinou relapsu \u2014 d\u00e9lka l\u00e9\u010dby je stejn\u011b d\u016fle\u017eit\u00e1 jako denn\u00ed d\u00e1vka.<\/p>\n<h3 class=\"wp-block-heading\">Vr\u00e1t\u00ed se mi akn\u00e9 po u\u017e\u00edv\u00e1n\u00ed Tretizenu?<\/h3>\n<p>P\u0159ibli\u017en\u011b <strong>70\u201380 % pacient\u016f z\u016fst\u00e1v\u00e1 dlouhodob\u011b bez p\u0159\u00edznak\u016f<\/strong> po jednom l\u00e9\u010debn\u00e9m cyklu s dosa\u017een\u00edm pln\u00e9 kumulativn\u00ed d\u00e1vky. U 20\u201330 % pacient\u016f, u kter\u00fdch dojde k relapsu, v\u011bt\u0161ina reaguje na druh\u00fd, krat\u0161\u00ed cyklus. Relaps je pravd\u011bpodobn\u011bj\u0161\u00ed u: pacient\u016f mlad\u0161\u00edch 16 let v dob\u011b l\u00e9\u010dby, pacient\u016f s syndromem polycystick\u00fdch ovari\u00ed a pacient\u016f, kte\u0159\u00ed l\u00e9\u010dbu ukon\u010dili p\u0159ed dosa\u017een\u00edm kumulativn\u00ed d\u00e1vky 120 mg\/kg.<\/p>\n<h3 class=\"wp-block-heading\">Je po\u010d\u00e1te\u010dn\u00ed vzplanut\u00ed akn\u00e9 norm\u00e1ln\u00ed?<\/h3>\n<p>Ano \u2014 postihuje p\u0159ibli\u017en\u011b 20 % pacient\u016f, nej\u010dast\u011bji v t\u00fddnech 2\u20136. L\u00e9k urychluje obnovu ji\u017e vznikaj\u00edc\u00edch mikrokomedon\u016f. Nep\u0159est\u00e1vejte s l\u00e9\u010dbou. Pokud je vzplanut\u00ed z\u00e1va\u017en\u00e9, m\u016f\u017ee l\u00e9ka\u0159 p\u0159idat kr\u00e1tkodob\u00e9 pod\u00e1v\u00e1n\u00ed peror\u00e1ln\u00edch kortikosteroid\u016f (7\u201314 dn\u00ed prednisonu) a do\u010dasn\u011b sn\u00ed\u017eit d\u00e1vku isotretinoinu. Vzplanut\u00ed t\u00e9m\u011b\u0159 v\u017edy ustoup\u00ed do 8. t\u00fddne.<\/p>\n<h3 class=\"wp-block-heading\">Mohu p\u00edt alkohol p\u0159i u\u017e\u00edv\u00e1n\u00ed Tretizenu?<\/h3>\n<p>Omezte na \u2264 1 n\u00e1poj t\u00fddn\u011b. Isotretinoin je metabolizov\u00e1n v j\u00e1trech a zvy\u0161uje hladinu triglycerid\u016f; alkohol tyto \u00fa\u010dinky zesiluje. Nadm\u011brn\u00e1 konzumace alkoholu v\u00fdrazn\u011b zvy\u0161uje riziko hepatitidy a pankreatitidy b\u011bhem l\u00e9\u010dby.<\/p>\n<h3 class=\"wp-block-heading\">Je Tretizen bezpe\u010dn\u00fd b\u011bhem t\u011bhotenstv\u00ed?<\/h3>\n<p><strong>Rozhodn\u011b ne.<\/strong> Isotretinoin je FDA t\u011bhotensk\u00e1 kategorie X a pat\u0159\u00ed mezi nejsiln\u011bj\u0161\u00ed zn\u00e1m\u00e9 lidsk\u00e9 teratogeny. I jedna d\u00e1vka v \u010dasn\u00e9m t\u011bhotenstv\u00ed m\u016f\u017ee zp\u016fsobit z\u00e1va\u017en\u00e9 vrozen\u00e9 vady obli\u010deje, CNS a kardiovaskul\u00e1rn\u00edho syst\u00e9mu. \u017deny v reproduk\u010dn\u00edm v\u011bku mus\u00ed pou\u017e\u00edvat dv\u011b sou\u010dasn\u00e9 formy spolehliv\u00e9 antikoncepce po celou dobu l\u00e9\u010dby a alespo\u0148 1 m\u011bs\u00edc po posledn\u00ed d\u00e1vce a podstupovat m\u011bs\u00ed\u010dn\u00ed t\u011bhotensk\u00e9 testy. Pokud ot\u011bhotn\u00edte b\u011bhem l\u00e9\u010dby, okam\u017eit\u011b ji ukon\u010dete a t\u00e9ho\u017e dne kontaktujte sv\u00e9ho l\u00e9ka\u0159e.<\/p>\n<h3 class=\"wp-block-heading\">Pro\u010d si nemohu d\u011blat voskov\u00e1n\u00ed, laser ani chemick\u00e9 peelingy p\u0159i u\u017e\u00edv\u00e1n\u00ed Tretizenu?<\/h3>\n<p>Isotretinoin \u010din\u00ed poko\u017eku k\u0159ehkou a zpomaluje hojen\u00ed ran. Voskov\u00e1n\u00ed, epilace nit\u00ed, laserov\u00e9 odstran\u011bn\u00ed chloupk\u016f, dermabraze, mikroneedling, IPL a chemick\u00e9 peelingy b\u011bhem l\u00e9\u010dby (a po <strong>6 m\u011bs\u00edc\u016f po<\/strong> posledn\u00ed d\u00e1vce) mohou zp\u016fsobit poran\u011bn\u00ed, hyperpigmentaci, hypertrofick\u00e9 jizvy nebo keloidn\u00ed formace. Po\u010dkejte pln\u00fdch 6 m\u011bs\u00edc\u016f po ukon\u010den\u00ed l\u00e9\u010dby, ne\u017e podstoup\u00edte n\u011bkter\u00fd z t\u011bchto z\u00e1krok\u016f.<\/p>\n<h3 class=\"wp-block-heading\">Je Tretizen spojov\u00e1n s depres\u00ed nebo sebevra\u017edou?<\/h3>\n<p>Kauz\u00e1ln\u00ed souvislost nen\u00ed definitivn\u011b prok\u00e1z\u00e1na \u2014 rozs\u00e1hl\u00e9 epidemiologick\u00e9 studie jsou nejednozna\u010dn\u00e9 a akn\u00e9 samo o sob\u011b je siln\u011b spojeno s depres\u00ed. Existuj\u00ed v\u0161ak kazuistiky a tento sign\u00e1l je br\u00e1n v\u00e1\u017en\u011b. Standardn\u00ed postup: p\u0159i ka\u017ed\u00e9 m\u011bs\u00ed\u010dn\u00ed kontrole vy\u0161et\u0159it z\u00e1kladn\u00ed n\u00e1ladu, konkr\u00e9tn\u011b se pt\u00e1t na sp\u00e1nek, energii, sebevra\u017eedn\u00e9 my\u0161lenky a soci\u00e1ln\u00ed sta\u017een\u00ed. <strong>Informujte sv\u00e9ho l\u00e9ka\u0159e je\u0161t\u011b tent\u00fd\u017e den,<\/strong> pokud se n\u011bkter\u00fd z t\u011bchto p\u0159\u00edznak\u016f zm\u011bn\u00ed. Nikdy nev\u00e1hejte l\u00e9\u010dbu ukon\u010dit, pokud je zm\u011bna n\u00e1lady v\u00fdrazn\u00e1 \u2014 akn\u00e9 lze l\u00e9\u010dit znovu, ale du\u0161evn\u00ed zdrav\u00ed je d\u016fle\u017eit\u011bj\u0161\u00ed.<\/p>\n<h3 class=\"wp-block-heading\">Jak m\u00e1m \u0159e\u0161it such\u00e9 rty, suchou poko\u017eku a krv\u00e1cen\u00ed z nosu?<\/h3>\n<p>Cheilitida (such\u00e9 rty) je t\u00e9m\u011b\u0159 univerz\u00e1ln\u00ed \u2014 od prvn\u00edho dne pou\u017e\u00edvejte 6\u20138kr\u00e1t denn\u011b neutr\u00e1ln\u00ed balz\u00e1m na rty s vazel\u00ednou nebo ceramidy. Pro suchou poko\u017eku pou\u017e\u00edvejte po sprchov\u00e1n\u00ed a podle pot\u0159eby hydrata\u010dn\u00ed kr\u00e9m bez parf\u00e9m\u016f s ceramidy. Pro such\u00fd nos a krv\u00e1cen\u00ed z nosu naneste tenkou vrstvu vazel\u00edny do ka\u017ed\u00e9 nosn\u00ed d\u00edrky dvakr\u00e1t denn\u011b. M\u011bjte u sebe konzerva\u010dn\u00ed l\u00e1tky neobsahuj\u00edc\u00ed zvlh\u010duj\u00edc\u00ed o\u010dn\u00ed kapky pro such\u00e9 o\u010di.<\/p>\n<h3 class=\"wp-block-heading\">Jakou d\u00e1vku Tretizenu m\u00e1m za\u010d\u00edt u\u017e\u00edvat?<\/h3>\n<p>Typick\u00e1 po\u010d\u00e1te\u010dn\u00ed d\u00e1vka je <strong>0,5 mg\/kg\/den<\/strong> po prvn\u00ed 4 t\u00fddny, pot\u00e9 se d\u00e1vka zvy\u0161uje na <strong>0,5\u20131,0 mg\/kg\/den<\/strong> podle tolerance. Pro pacienta o hmotnosti 70 kg: za\u010dn\u011bte s 30\u201340 mg\/den, p\u0159ejd\u011bte na 40\u201370 mg\/den. N\u011bkte\u0159\u00ed dermatologov\u00e9 preferuj\u00ed n\u00edzkod\u00e1vkov\u00e9 protokoly (10\u201320 mg\/den po dobu 9\u201312 m\u011bs\u00edc\u016f) s porovnatelnou dlouhodobou remis\u00ed a m\u00e9n\u011b vedlej\u0161\u00edmi \u00fa\u010dinky \u2014 zvl\u00e1\u0161t\u011b u\u017eite\u010dn\u00e9 pro st\u0159edn\u011b z\u00e1va\u017en\u00e9 akn\u00e9.<\/p>\n<h3 class=\"wp-block-heading\">Tretizen vs topick\u00fd tretinoin \u2014 co je pro m\u011b vhodn\u011bj\u0161\u00ed?<\/h3>\n<p>Or\u00e1ln\u00ed isotretinoin je ur\u010den pro <strong>t\u011b\u017ek\u00e1 nodulocystick\u00e1 akn\u00e9<\/strong>, jizv\u00edc\u00ed akn\u00e9 a akn\u00e9, kter\u00e9 nereagovalo na kompletn\u00ed l\u00e9\u010dbu topickou + or\u00e1ln\u00ed antibiotickou terapi\u00ed. <a href=\"https:\/\/medsbase.com\/cs\/retino-a-cream\/\">Topick\u00fd tretinoin<\/a> je prvn\u00ed volbou u m\u00edrn\u00e9ho a\u017e st\u0159edn\u011b z\u00e1va\u017en\u00e9ho akn\u00e9, komedon\u00e1ln\u00edho akn\u00e9 a postakn\u00e9ov\u00fdch skvrn. Oba l\u00e9ky maj\u00ed spole\u010dn\u00fd mechanismus (oba jsou retinoidy), ale isotretinoin p\u016fsob\u00ed syst\u00e9mov\u011b a zmen\u0161uje mazov\u00e9 \u017el\u00e1zy \u2014 topick\u00fd tretinoin nikoli. P\u0159e\u010dt\u011bte si n\u00e1\u0161 podrobn\u00fd srovn\u00e1vac\u00ed \u010dl\u00e1nek: <a href=\"https:\/\/medsbase.com\/cs\/isotretinoin-vs-tretinoin\/\">Isotretinoin vs. tretinoin<\/a>.<\/p>\n<p><!-- medsbase-related-alts-v1 --><\/p>\n<h3 class=\"wp-block-heading\">Souvisej\u00edc\u00ed alternativy<\/h3>\n<p>Dal\u0161\u00ed produkty v <strong>L\u00e9\u010dba akn\u00e9<\/strong> kter\u00e9 z\u00e1kazn\u00edci tak\u00e9 prohl\u00ed\u017eej\u00ed:<\/p>\n<ul>\n<li><a href=\"https:\/\/medsbase.com\/cs\/retino-a-cream\/\">Retino A kr\u00e9m<\/a><\/li>\n<li><a href=\"https:\/\/medsbase.com\/cs\/tretinex-cream\/\">Tretinex Cream<\/a><\/li>\n<li><a href=\"https:\/\/medsbase.com\/cs\/tretiheal-cream\/\">Tretiheal kr\u00e9m<\/a><\/li>\n<li><a href=\"https:\/\/medsbase.com\/cs\/isopil\/\">Isopil<\/a><\/li>\n<li><a href=\"https:\/\/medsbase.com\/cs\/accufine\/\">Accufine<\/a><\/li>\n<\/ul>\n<p><!-- medsbase-guide-tretinoin --><\/p>\n<p style=\"margin:20px 0 0;padding:12px 16px;background:#f4f8fb;border-left:3px solid #2c7cb0;border-radius:3px;font-size:14px\">\ud83d\udcda <strong>Zjistit v\u00edce:<\/strong> <a href=\"https:\/\/medsbase.com\/cs\/buy-tretinoin-online\/\">Jak koupit Tretinoin online bez p\u0159edpisu (Pr\u016fvodce 2026)<\/a><\/p>","protected":false},"excerpt":{"rendered":"<h5>\u2705 \u00da\u010dinn\u011b odstra\u0148uje t\u011b\u017ek\u00e9 akn\u00e9<br \/>\n\u2705 Sni\u017euje jizvy po akn\u00e9<br \/>\n\u2705 Dlouhotrvaj\u00edc\u00ed v\u00fdsledky<br \/>\n\u2705 Zlep\u0161uje celkov\u00fd vzhled poko\u017eky<br \/>\n\u2705 Posiluje sebev\u011bdom\u00ed<\/h5>\n<p><span style=\"color: #999999;\">Tretizen obsahuje Isotretinoin<\/span><\/p>","protected":false},"featured_media":50484,"comment_status":"open","ping_status":"open","template":"","meta":[],"product_brand":[],"product_cat":[3215],"product_tag":[3219,3220],"class_list":{"0":"post-50483","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-acne-treatment","7":"product_tag-isotretinoin","8":"product_tag-tretizen","10":"first","11":"instock","12":"shipping-taxable","13":"purchasable","14":"product-type-variable","15":"has-default-attributes"},"acf":[],"_links":{"self":[{"href":"https:\/\/medsbase.com\/cs\/wp-json\/wp\/v2\/product\/50483","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/medsbase.com\/cs\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/medsbase.com\/cs\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/medsbase.com\/cs\/wp-json\/wp\/v2\/comments?post=50483"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/medsbase.com\/cs\/wp-json\/wp\/v2\/media\/50484"}],"wp:attachment":[{"href":"https:\/\/medsbase.com\/cs\/wp-json\/wp\/v2\/media?parent=50483"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/medsbase.com\/cs\/wp-json\/wp\/v2\/product_brand?post=50483"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/medsbase.com\/cs\/wp-json\/wp\/v2\/product_cat?post=50483"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/medsbase.com\/cs\/wp-json\/wp\/v2\/product_tag?post=50483"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}