Ciprofloxacin

Cobay-500

40.00 ฿
(฿4/tablet)
Shipping calculated at checkout.

Cobay-500 — A fluoroquinolone antibiotic for treating urinary tract infections (UTIs) and bacterial diarrhea

💊 Active Ingredient — Ciprofloxacin 500 mg
🦠 Excellent Gram-negative Coverage — Effective against E. coli, the main cause of UTIs
⏱️ Twice Daily Dosing — Every 12 hours, with or without food
📦 10 Tablets per Blister — 25 blisters per box
⚠️ Important Warning — May cause tendon inflammation or rupture. Stop immediately if you experience joint or tendon pain
🌡️ Storage — Below 30°C, protect from light and moisture

Variant: 10 Tablets
Shipping

Discreet shipping within Thailand — packaging does not identify the product. Customers can review shipping and return conditions per our store policy. Contact our team for any questions.

Variant

Product Description

Antibiotic medication is a medically proven option for treating bacterial infections. Cobay-500 is a Fluoroquinolone antibiotic containing Ciprofloxacin 500 mg — the same active ingredient as Cifloxin, but a different brand.

📊 Key Statistics

  • Ciprofloxacin is a widely used Fluoroquinolone antibiotic with broad-spectrum bactericidal activity
  • Cobay-500 is a Thai generic containing Ciprofloxacin 500 mg, bioequivalent to the originator product
  • Works through Bactericidal action by inhibiting DNA Gyrase and Topoisomerase IV, killing bacteria directly
  • See other antibiotics in the Antibiotics collection

🏭 Cobay-500 is a Thai generic approved by the Thai FDA, containing Ciprofloxacin 500 mg equivalent to the originator product.

⚠️ Antibiotics must be taken for the full prescribed course. Do not stop early even if symptoms improve, as this may lead to antibiotic resistance.

Supatcheree A., Pharmacist

Medically reviewed by

Supatcheree A., Pharmacist | Sources: NHS, StatPearls, Drugs.com

Last reviewed: 2026-02-17

About Cobay-500

What is Cobay-500?

Cobay-500 is an oral antibiotic containing Ciprofloxacin 500 mg as its active ingredient. It belongs to the Fluoroquinolone drug class and is manufactured in Thailand as a generic product.

Ciprofloxacin works through Bactericidal action by inhibiting DNA Gyrase and Topoisomerase IV — enzymes essential for bacterial DNA replication, repair, and transcription, ultimately killing the bacteria.

Cobay-500 contains the same active ingredient as Cifloxin, differing only in manufacturer and brand name. Equivalent efficacy.

What is Cobay-500 used for?

Urinary Tract Infections (UTI): Including cystitis, pyelonephritis, and complicated UTIs.

Gastrointestinal Infections: Bacterial diarrhoea, typhoid fever.

Lower Respiratory Tract Infections: Bacterial pneumonia, acute exacerbation of chronic bronchitis.

Skin and Soft Tissue Infections: Infected wounds, abscesses.

Bone and Joint Infections: Osteomyelitis, septic arthritis.

Not for: Viral infections (common cold, influenza) or minor infections where safer antibiotics are available.

How to Take Cobay-500 / Dosage

Usual dosage: 250–750 mg twice daily every 12 hours for 3–14 days, depending on the type and severity of infection.

Dosage examples by indication:

  • Uncomplicated UTI: 250 mg twice daily for 3 days
  • Complicated UTI: 500 mg twice daily for 7–14 days
  • Respiratory infections: 500–750 mg twice daily for 7–14 days
  • GI infections: 500 mg twice daily for 5–7 days

How to take: Swallow with plenty of water. Take 2 hours before or after meals. Avoid dairy products and calcium/iron/zinc supplements within 2 hours of dosing.

Important: Complete the full prescribed course. Do not stop early when symptoms improve.

Side Effects of Cobay-500

Common side effects:

  • Nausea, vomiting
  • Diarrhoea
  • Headache, dizziness
  • Abdominal pain

Serious side effects (⚠️ FDA Boxed Warning):

  • Tendinitis and Tendon Rupture — especially the Achilles tendon; higher risk in elderly and corticosteroid users
  • Peripheral Neuropathy — numbness, burning pain in hands or feet; may be irreversible
  • CNS Effects — confusion, hallucinations, seizures, depression, insomnia
  • Severe C. difficile-associated diarrhoea
  • Severe allergic reactions (Stevens-Johnson Syndrome)

⚠️ FDA Boxed Warning: Fluoroquinolones carry risks of tendinitis/rupture, peripheral neuropathy, and CNS effects. Use only when no alternative treatment options exist for non-serious infections.

Contraindications & Precautions

Do not use:

  • Allergy to Ciprofloxacin or any other Fluoroquinolone
  • Children under 18 years (except specific cases)
  • Concurrent use of Tizanidine

Use with caution:

  • Elderly — increased risk of tendon rupture
  • Corticosteroid users — increased risk of tendon rupture
  • History of seizures or CNS disorders
  • Renal impairment — dose adjustment may be needed
  • Avoid excessive sun exposure — Ciprofloxacin may cause photosensitivity
  • Do not take with dairy, calcium, iron, zinc supplements, or aluminium/magnesium antacids

How Does Cobay-500 Compare to Other Antibiotics?

Cobay-500 vs. Cifloxin: Same active ingredient — Ciprofloxacin 500 mg. Both are Thai generics, differing only in manufacturer. Choose based on price and availability.

Cobay-500 vs. AMK (Amoxicillin/Clavulanate): AMK is a Penicillin-class antibiotic with a better safety profile — suitable for mild infections. Cobay-500 offers better Gram-negative coverage for UTIs and severe infections.

Cobay-500 vs. Azithromycin: Azithromycin is easier to take (once daily) with no FDA Boxed Warning. Cobay-500 provides better Gram-negative coverage — preferable for UTIs and GI infections.

How Fast Does Cobay-500 Work?

Ciprofloxacin is rapidly absorbed, reaching peak blood levels within 1–2 hours of ingestion.

Results timeline:

  • 1–2 hrs: Drug reaches peak blood levels; begins killing bacteria
  • 24–48 hrs: Symptoms begin improving for most infections
  • 3–5 days: Noticeable improvement for uncomplicated UTIs
  • 7–14 days: Full course completion for complicated infections

Important: Even though symptoms may improve quickly, the full course must be completed to eradicate bacteria completely.

Where Can I Buy Cobay-500?

Cobay-500 is a pharmacist-dispensed medication. You can order online from Intimo Life.

Can I buy Cobay-500 online?

Yes. Order through Intimo Life — select the product, consult with a licensed pharmacist online, and receive your medication at home.

Do I need a prescription?

A doctor's prescription is not required, but the medication must be dispensed by a licensed pharmacist. At Intimo Life, our pharmacist will review your symptoms and health history to confirm suitability before shipping.

How does Intimo Life ship orders?

We deliver nationwide in Thailand with discreet packaging — no product names on the outside.

⚠️ Disclaimer

The information on this page is for general informational purposes only and is not intended to replace professional medical advice, diagnosis, or treatment from a qualified doctor or pharmacist. If you have any questions about your symptoms or medication, always consult a doctor or pharmacist first.

Frequently Asked Questions

Both contain the same active ingredient — Ciprofloxacin 500 mg. Both are Thai generics differing only in manufacturer and brand name. Equivalent efficacy — choose based on price and availability.

No. Calcium in milk binds with Ciprofloxacin, significantly reducing absorption. Wait at least 2 hours before or after taking the medication before consuming dairy or calcium supplements.

Depends on the type of infection — uncomplicated UTI may require only 3 days, while severe infections may need 7–14 days. Always complete the full prescribed course.

No. The common cold is caused by viruses, not bacteria. Antibiotics have no effect on viruses. Unnecessary antibiotic use contributes to antibiotic resistance.

Ciprofloxacin may crystallise in the kidneys if the body is dehydrated. Drinking plenty of water (at least 1.5–2 litres daily) helps flush the drug through the kidneys and reduces the risk of crystal formation in the urinary tract.

Yes, but with special caution. Elderly patients have increased risk of serious side effects, particularly tendinitis/rupture and peripheral neuropathy. Use only when no alternative exists, and monitor for tendon pain or numbness in hands and feet.

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