Ciplox

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Why order from MedsBase

Our generic medications are sourced from WHO-GMP certified manufacturers and shipped worldwide in discreet, plain packaging — no medication name on the parcel exterior. Card payments are routed through a regulated processor (statement descriptors include a regulated card-payment processor — never “MedsBase” or any medication name). Crypto and SEPA bank transfer are also accepted. Every order is backed by our Reshipment Assurance Policy.

Why order from MedsBase

Ciplox is supplied from a WHO-GMP certified manufacturer. Every order ships discreetly worldwide and is covered by our Reshipment Assurance Policy — if it does not arrive within 20 business days, we reship at no cost. Ciprofloxacin remains essential for several niche indications including invasive enteric infection, neutropenic fever, complicated UTI with Pseudomonas, and SBP prophylaxis — the FDA black-boxes are a stewardship signal, not a removal.

Mechanism

Ciprofloxacin inhibits bacterial DNA gyrase (topoisomerase II) and topoisomerase IV, preventing DNA replication and transcription. It is bactericidal at clinically achievable concentrations. Resistance arises through point mutations in gyrA / parC and through efflux-pump upregulation; resistance now exceeds 30 percent in some Enterobacteriaceae populations and 50 percent in Salmonella Typhi from South Asia.

Gastrointestinal indications

• Severe traveller’s diarrhoea (fever > 38.5°C, bloody stool, sepsis-like): 500 mg twice daily for 1–3 days
• Salmonella bacteraemia / typhoid (susceptible strains): 500 mg twice daily for 7–14 days
• Shigellosis (severe): 500 mg twice daily for 3–5 days
• Intra-abdominal infection (with metronidazole): 400 mg IV q12h or 500–750 mg PO q12h for 5–14 days
• Spontaneous bacterial peritonitis prophylaxis in cirrhosis: 500 mg once daily long-term
• Crohn’s perianal disease (with metronidazole): 500 mg twice daily for 4–12 weeks
• Helicobacter pylori salvage therapy: ciprofloxacin 500 mg BD + amoxicillin + PPI + bismuth (after standard therapy failure)

Dose

Adults: 250–750 mg twice daily PO depending on severity. Severe / complicated infection: 500–750 mg twice daily. Bone, joint, deep-tissue infection: 750 mg twice daily. CrCl 30–50: 250–500 mg twice daily. CrCl < 30: 250–500 mg once daily. Hepatic impairment: no dose change. Children: limited indications (cystic fibrosis pulmonary exacerbation, anthrax, complicated UTI) at 10–20 mg/kg/dose BD.

Side effects

• GI: nausea, diarrhoea, abdominal pain, oral thrush
• CNS: headache, dizziness, insomnia, anxiety, confusion, hallucinations, seizures (rare)
• Tendinopathy / tendon rupture (FDA black-box): Achilles especially, often within days; older age, corticosteroid use, transplant, and chronic kidney disease raise risk
• Peripheral neuropathy (FDA black-box): sometimes permanent
• Aortic aneurysm / dissection (FDA black-box, especially in older adults with risk factors)
• QT prolongation, torsades (rare)
• Photosensitivity
• Hypoglycaemia (especially in diabetics on sulfonylureas)
• C. difficile-associated diarrhoea
• Stevens-Johnson syndrome, TEN (rare)

Drug interactions

• Antacids, iron, zinc, calcium, dairy, sucralfate, multivitamins: chelate ciprofloxacin and reduce absorption 50–90 percent — separate by 2 hours before or 6 hours after.
• Tizanidine: CIPROFLOXACIN-TIZANIDINE COMBINATION IS ABSOLUTELY CONTRAINDICATED — ciprofloxacin inhibits CYP1A2 and raises tizanidine 10-fold, causing dangerous hypotension and sedation.
• Theophylline, caffeine: CYP1A2 inhibition raises levels — dose reduce theophylline 30 percent.
• Warfarin: INR rise — monitor closely.
• Sulfonylureas, insulin: hypoglycaemia risk.
• QT-prolonging drugs: additive risk of torsades.
• Methotrexate, cyclosporine: levels may rise.
• NSAIDs: may increase CNS / seizure risk.

Frequently Asked Questions

When should ciprofloxacin be used for diarrhoea?

Reserve for severe disease — high fever (> 38.5°C), bloody stool, systemic toxicity, immunocompromise, or specific suspected pathogen (Shigella, Salmonella, severe traveller’s). Mild traveller’s diarrhoea responds to oral rehydration alone or rifaximin (gut-selective).

What about Salmonella resistance?

Resistance to fluoroquinolones in S. Typhi from South Asia exceeds 50 percent. Empirical treatment in returning travellers from these regions should use azithromycin or a third-generation cephalosporin until susceptibilities are known.

Why is the tendon rupture warning so prominent?

Achilles tendon rupture has been reported within days of starting ciprofloxacin, particularly in older adults, those on corticosteroids, post-transplant patients, and those with kidney disease. Stop the drug at the first sign of tendon pain or swelling and avoid weight-bearing exercise.

I take antacids for reflux. Can I still take ciprofloxacin?

Yes, but separate the doses. Take ciprofloxacin first; wait 2 hours before any antacid, calcium, iron, or dairy product. Or wait 6 hours after antacid to take the ciprofloxacin.

Can I drink coffee on it?

Caffeine is metabolised by CYP1A2, which ciprofloxacin inhibits. Caffeine levels rise; you may notice jitteriness, palpitations, and insomnia. Reduce caffeine intake for the duration of the course.

Is it safe in pregnancy?

Not generally recommended — animal data show cartilage damage; human data are limited. Avoid unless the indication is severe and alternatives are unsuitable.

Can children take it?

Restricted use in children: cystic fibrosis exacerbations, complicated UTI, anthrax, and a few other defined indications. Animal cartilage signal at high doses but human evidence has been reassuring at therapeutic doses.

Will it disrupt my gut bacteria?

Yes, like most broad-spectrum antibiotics. Probiotic supplementation during and after the course reduces the risk of antibiotic-associated diarrhoea and C. difficile.

What if I get a rash?

Stop the drug and seek medical advice. Photosensitivity rash is common; allergic reactions are less common but can be severe (SJS/TEN).

Storage

Below 25°C in a dry place. Avoid freezing. Keep tablets in the original blister.

Other Gastro Health Medications

• Cendox — Doxycycline
• Synclar — Clarithromycin (H. pylori)
• Rcifax — Rifaximin (gut-selective)
• Rifagut — Rifaximin
• Flagyl Suspension — Metronidazole (anaerobic / Crohn’s perianal)
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