Pharmacy & Medicine Guide for Koh Samui

In practice, many antibiotics are available over-the-counter at Thailand pharmacies in Koh Samui, even though Thailand's Food and Drug Administration (FDA) technically classifies most antibiotics as prescription-required medications. Pharmacists in Koh Samui can often assess your symptoms and recommend appropriate antibiotics directly, particularly for common conditions like urinary tract infections, skin infections, respiratory infections, and traveler's diarrhea. Common antibiotics like amoxicillin, azithromycin (Zithromax), and ciprofloxacin are widely available at pharmacies throughout Koh Samui, typically at 60-80% lower cost than in Western countries — a standard course of amoxicillin costs approximately 50-100 THB ($1.50-$3 USD). However, self-medicating with antibiotics carries serious risks including antibiotic resistance, allergic reactions, and misdiagnosis of the underlying condition. For anything beyond a clearly identifiable minor infection, ThaiSafe strongly recommends consulting a doctor at one of Koh Samui's 6+ hospitals, where a basic consultation at a private hospital costs only 500-1,000 THB ($15-$30 USD) and ensures you receive the correct medication and dosage for your specific condition.