{"id":60769,"date":"2024-02-28T07:07:38","date_gmt":"2024-02-28T07:07:38","guid":{"rendered":"https:\/\/medsname.com\/avonza\/"},"modified":"2026-05-08T09:18:45","modified_gmt":"2026-05-08T09:18:45","slug":"avonza","status":"publish","type":"product","link":"https:\/\/medsbase.com\/nl\/avonza\/","title":{"rendered":"Avonza"},"content":{"rendered":"
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Snelle antwoord<\/h3>\n

Avonza<\/strong> is een specialistisch begeleide antiretrovirale therapie die wordt gebruikt als onderdeel van een combinatieregime voor HIV. Lees de doserings-, bijwerkingen- en interactiesecties hieronder voor gebruik; de FAQ's onderaan behandelen de meest voorkomende vragen.<\/p>\n<\/div>\n

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\ud83d\udce6 Elke bestelling is gedekt door onze Reshipment Assurance Policy<\/strong><\/a> \u2014 als uw pakket niet binnen 20 werkdagen arriveert, sturen wij het opnieuw.<\/p>\n

Waarom bestellen bij MedsBase<\/h3>\n

Onze generieke medicijnen zijn afkomstig van WHO-GMP gecertificeerde fabrikanten en worden wereldwijd verzonden in discrete, eenvoudige verpakkingen \u2014 geen medicijnnaam op de buitenkant van het pakket. Betalingen met kaart worden verwerkt via een gereguleerde processor (betalingsoverzichten vermelden een gereguleerde kaartbetalingprocessor \u2014 nooit \u201cMedsBase\u201d of een medicijnnaam). Crypto en SEPA bankoverschrijvingen worden ook geaccepteerd. Elke bestelling wordt ondersteund door ons Reshipment Assurance Policy.<\/p>\n

Avonza<\/strong> is a fixed-dose combination antiretroviral tablet used for the treatment of HIV-1-infectie<\/strong>. Each tablet contains three active ingredients — Lamivudine 300mg<\/strong>, Tenofovir Disoproxil Fumarate 300mg<\/strong>, en Efavirenz 600mg<\/strong> — combined into a single daily pill. As a generic equivalent of Atripla<\/strong>, Avonza delivers the same triple-drug regimen at a fraction of the cost, making effective HIV treatment more accessible worldwide.<\/p>\n

When you buy Avonza online<\/strong> from MedsBase, you receive genuine, WHO-prequalified antiretroviral tablets manufactured under strict Good Manufacturing Practice (GMP) standards, shipped with discreet packaging and worldwide delivery. Browse our full range of HIV medications<\/a> for additional antiretroviral options.<\/p>\n

Avonza Product Overview<\/h2>\n

Avonza belongs to a class of medicines known as complete single-tablet regimens (STRs)<\/strong> for HIV-1. It combines two nucleoside reverse transcriptase inhibitors (NRTIs) with one non-nucleoside reverse transcriptase inhibitor (NNRTI), providing a complete antiretroviral therapy in one convenient tablet taken once daily.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n
Property<\/th>\nDetails<\/th>\n<\/tr>\n<\/thead>\n
Brand Name<\/td>\nAvonza<\/td>\n<\/tr>\n
Werkzame bestanddelen<\/td>\nLamivudine 300mg + Tenofovir Disoproxil Fumarate 300mg + Efavirenz 600mg<\/td>\n<\/tr>\n
Geneesmiddelklasse<\/td>\nCombination antiretroviral (2 NRTIs + 1 NNRTI)<\/td>\n<\/tr>\n
Reference Brand<\/td>\nAtripla<\/td>\n<\/tr>\n
Form<\/td>\nFilm-coated oral tablet<\/td>\n<\/tr>\n
Dosering<\/td>\nOne tablet once daily<\/td>\n<\/tr>\n
Indicatie<\/td>\nHIV-1 treatment in adults and adolescents ≥40kg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Avonza simplifies HIV-behandeling<\/strong> by replacing what would otherwise be three separate medications into a single pill, improving adherence and reducing the complexity of daily antiretroviral therapy.<\/p>\n

How Avonza Works<\/h2>\n

The Avonza tablet<\/strong> contains three antiretroviral agents that target HIV-1 at different stages of its replication cycle. By attacking the virus through multiple mechanisms simultaneously, Avonza suppresses viral load more effectively and reduces the risk of drug resistance.<\/p>\n

Lamivudine (300mg) — Nucleoside Reverse Transcriptase Inhibitor (NRTI)<\/h3>\n

Lamivudine (also known as 3TC) is a synthetic nucleoside analogue. Once inside an HIV-infected cell, it is phosphorylated to its active triphosphate form, which competes with the natural nucleoside deoxycytidine triphosphate. When incorporated into the growing viral DNA chain by reverse transcriptase<\/strong>, it causes chain termination<\/strong> — blocking further DNA synthesis and preventing the virus from replicating its genetic material.<\/p>\n

Tenofovir Disoproxil Fumarate (300mg) — Nucleotide Reverse Transcriptase Inhibitor (NtRTI)<\/h3>\n

Tenofovir is a nucleotide analogue that, like Lamivudine, inhibits HIV reverse transcriptase. However, because it is already a nucleotide (monophosphate), it requires one fewer phosphorylation step to become active. Tenofovir diphosphate competes with deoxyadenosine triphosphate and, when incorporated into viral DNA, causes obligate chain termination<\/strong>. Its distinct resistance profile complements Lamivudine, providing a robust NRTI backbone.<\/p>\n

Efavirenz (600mg) — Non-Nucleoside Reverse Transcriptase Inhibitor (NNRTI)<\/h3>\n

Efavirenz works through a different mechanism from the two NRTIs. Rather than being incorporated into the DNA chain, it binds directly to HIV-1 reverse transcriptase<\/strong> at a site away from the active site (an allosteric site), causing a conformational change that disrupts the enzyme’s function. This non-competitive inhibition effectively shuts down viral DNA synthesis through an entirely separate pathway.<\/p>\n

Triple-Action Synergy<\/h3>\n

Together, these three components create a powerful barrier to HIV replication. The dual NRTI backbone (Lamivudine + Tenofovir) blocks reverse transcription through chain termination, while Efavirenz disables the same enzyme through allosteric inhibition. This multi-target approach<\/strong> is central to modern antiretroviral therapy — it suppresses the virus more completely and makes it significantly harder for HIV to develop resistance mutations against all three drugs simultaneously.<\/p>\n

Toepassingen en Indicaties<\/h2>\n

Avonza<\/strong> is indicated for the treatment of HIV-1-infectie<\/strong> as a complete regimen in the following patient populations:<\/p>\n

    \n
  • Volwassenen<\/strong> — treatment-naïve patients starting antiretroviral therapy for the first time, or patients switching from a stable regimen with undetectable viral load<\/li>\n
  • Adolescents weighing ≥40kg<\/strong> — who can swallow the tablet whole and require a complete single-tablet regimen<\/li>\n<\/ul>\n

    Important limitations:<\/strong><\/p>\n

      \n
    • Avonza is not indicated for pre-exposure prophylaxis (PrEP)<\/strong> — Efavirenz is not appropriate for HIV prevention in uninfected individuals<\/li>\n
    • Avonza is not effective against HIV-2<\/strong> — Efavirenz has no activity against HIV-2 reverse transcriptase<\/li>\n
    • Avonza should not be used as monotherapy<\/strong> or co-administered with other products containing the same active ingredients (e.g., separate Lamivudine, Tenofovir, or Efavirenz tablets)<\/li>\n<\/ul>\n

      Avonza Dosage<\/h2>\n

      The recommended dose of Avonza<\/strong> is one tablet taken once daily<\/strong>, on an empty stomach. Dosing at bedtime is strongly recommended to minimize central nervous system (CNS) side effects associated with Efavirenz, such as dizziness and vivid dreams.<\/p>\n

        \n
      • Tijdstip:<\/strong> Take at bedtime, preferably 2–3 hours after the last meal<\/li>\n
      • Voeding:<\/strong> Take on an empty stomach — taking with food (especially high-fat meals) increases Efavirenz absorption by up to 50%, which may worsen side effects<\/li>\n
      • In zijn geheel doorslikken:<\/strong> Do not crush, break, or chew the tablet<\/li>\n
      • Consistentie:<\/strong> Take at the same time every day to maintain steady drug levels<\/li>\n
      • Gemiste dosis:<\/strong> If you miss a dose, take it as soon as you remember unless it is almost time for the next dose — do not double up<\/li>\n<\/ul>\n

        No dose adjustment is needed for patients with mild renal impairment (creatinine clearance ≥50 mL\/min). Avonza should not be used<\/strong> in patients with moderate or severe renal impairment, as the Tenofovir component requires dose adjustment that cannot be achieved with a fixed-dose combination.<\/p>\n

        Benefits of a Single-Pill Regimen<\/h2>\n

        Taking a single tablet daily<\/strong> instead of multiple pills offers significant advantages for long-term HIV management:<\/p>\n

          \n
        • Improved adherence<\/strong> — simpler regimens lead to better medication-taking behaviour, which is critical for maintaining viral suppression<\/li>\n
        • Reduced pill burden<\/strong> — one tablet replaces three separate medications, reducing the daily reminder of living with HIV<\/li>\n
        • Lower risk of resistance<\/strong> — better adherence means fewer missed doses, which reduces the chance of the virus developing drug-resistant mutations<\/li>\n
        • Gebruiksgemak<\/strong> — easier to incorporate into a daily routine, especially for patients managing other health conditions<\/li>\n
        • Kosteneffectief<\/strong> — as a generic equivalent of Atripla, Avonza<\/strong> provides the same proven triple-drug combination at significantly lower cost<\/li>\n
        • Discreet<\/strong> — a single tablet is easier to store and take discreetly compared to multiple pill bottles<\/li>\n<\/ul>\n

          Avonza Side Effects<\/h2>\n

          Like all antiretroviral medications, Avonza<\/strong> can cause side effects. Most are mild to moderate and tend to improve within the first 2–4 weeks of treatment. The Efavirenz component is responsible for the majority of early side effects, particularly those affecting the central nervous system.<\/p>\n

          Veelvoorkomende bijwerkingen<\/h3>\n\n\n\n\n\n\n\n\n\n
          Category<\/th>\nBijwerkingen<\/th>\nFrequentie<\/th>\n<\/tr>\n<\/thead>\n
          Central Nervous System (Efavirenz)<\/td>\nDizziness, vivid or abnormal dreams, insomnia, impaired concentration, drowsiness<\/td>\nVery common (up to 50% in first weeks)<\/td>\n<\/tr>\n
          Gastrointestinal<\/td>\nNausea, diarrhoea, vomiting, abdominal pain<\/td>\nVaak voorkomend<\/td>\n<\/tr>\n
          Skin<\/td>\nRash (usually mild to moderate, resolves without stopping treatment)<\/td>\nVaak voorkomend<\/td>\n<\/tr>\n
          Metabool<\/td>\nElevated liver enzymes, elevated cholesterol and triglycerides<\/td>\nVaak voorkomend<\/td>\n<\/tr>\n
          General<\/td>\nVermoeidheid, hoofdpijn<\/td>\nVaak voorkomend<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          CNS side effects from Efavirenz — particularly dizziness and vivid dreams — are very common during the first 1–2 weeks but typically resolve within 2–4 weeks<\/strong> of continued use. Taking the tablet at bedtime significantly reduces the impact of these effects on daily activities.<\/p>\n

          Ernstige bijwerkingen (zeldzaam)<\/h3>\n

          Seek immediate medical attention if you experience any of the following:<\/p>\n

            \n
          • Melkzuuracidose<\/strong> — symptoms include unusual muscle pain, difficulty breathing, stomach pain with nausea\/vomiting, cold or blue skin, and dizziness. This is a rare but potentially life-threatening complication of NRTIs (Lamivudine and Tenofovir).<\/li>\n
          • Hepatotoxiciteit<\/strong> — severe liver damage presenting as jaundice (yellowing of skin or eyes), dark urine, pale stools, or persistent abdominal pain<\/li>\n
          • Hepatitis B flare<\/strong> — patients co-infected with Hepatitis B may experience severe acute exacerbations of hepatitis if Avonza is discontinued (see Warnings section below)<\/li>\n
          • Severe skin reactions<\/strong> — Stevens-Johnson syndrome (SJS) has been reported rarely with Efavirenz. Discontinue immediately if blistering or mucosal lesions develop.<\/li>\n
          • Psychiatric symptoms<\/strong> — severe depression, suicidal thoughts, or psychosis (uncommon but reported with Efavirenz)<\/li>\n
          • Nierfunctiestoornis<\/strong> — Tenofovir can affect kidney function, particularly proximal renal tubular function (Fanconi syndrome)<\/li>\n<\/ul>\n

            Important Warnings and Precautions<\/h2>\n

            Before starting Avonza HIV treatment<\/strong>, your healthcare provider should evaluate several important factors:<\/p>\n