Antibiotics abroad: what you need to know

An estimated 1.27 million deaths worldwide were directly attributable to bacterial antimicrobial resistance in 2019, with 4.95 million associated deaths. per the Global Burden of Disease 2019 AMR analysis (Lancet, 2022)^[1]. Travel is one of the most reliable ways to acquire and spread resistant strains. If your routine includes international trips, you are part of the resistance pipeline whether or not you take an antibiotic abroad.

Medical disclaimer: This article is for informational purposes only and does not constitute medical advice. Antibiotic regulations, local brand availability, and pharmacy licensing rules change. Always consult a qualified healthcare provider before starting, stopping, or changing any antibiotic course. Verify import rules with the relevant national health authority before travel.

Why travellers are resistance vectors

Travellers returning from India, Bangladesh, Pakistan, Vietnam, Indonesia, and Egypt have the highest documented rates of acquiring extended-spectrum beta-lactamase (ESBL)-producing Enterobacteriaceae in their gut. These are E. coli and related bacteria resistant to most first-line antibiotics. In a prospective Finnish cohort, 21% of all travellers acquired ESBL-producing bacteria; the rate was 72% for returnees from India and 59% for mainland Southeast Asia^[2], with roughly a third still carrying the resistant strain six months later.

Taking an antibiotic you bought at a local pharmacy compounds the problem. Incomplete courses, sub-therapeutic doses, and self-diagnosis select for resistance. The bacteria that survive your three-day course are the resistant ones.

You then carry those bacteria home on the plane.

Countries where antibiotics are sold without a prescription

In India, Vietnam, Egypt, and parts of the Philippines and Indonesia, antibiotics including amoxicillin, ciprofloxacin, and azithromycin are routinely dispensed without a valid prescription, often after a brief pharmacist consultation. Brazil and Mexico both passed prescription-only enforcement laws in 2010, after which antibiotic OTC sales dropped sharply but were not eliminated, with enforcement varying by state and pharmacy^[3]. Thailand classifies antibiotics as behind-the-counter rather than over-the-counter; a pharmacist's verbal screening is the gatekeeper rather than a written prescription, which in practice still allows easy access.

This is useful to know if you have a documented infection and your prescribed supply runs out. It is not an endorsement to self-prescribe.

In contrast, most of Western Europe, Canada, Australia, and Japan require a valid prescription for all antibiotic dispensing^[4]. A prescription written in your home country is generally not transferable. If your supply is lost or stolen, you will need a local consultation.

Brand-name swaps that confuse travellers

The antibiotic your doctor prescribed exists under dozens of trade names worldwide. Failing to recognise the local equivalent can lead you to buy a duplicate, or miss an available supply.

Some common examples of how the same INN (International Nonproprietary Name) maps to different local brands:^[5]

Amoxicillin is sold as Amoxil (most English-speaking markets), Clamoxyl (France, Belgium, Portugal, Spain), Ospamox (Austria, Switzerland, and other Sandoz markets), Flemoxin (Russia, the Netherlands, Eastern Europe), and dozens of generic versions worldwide. Ciprofloxacin appears as Cipro and Cipro XR (United States), Ciproxin (Bayer's brand in Italy, Greece, Australia, Indonesia, Israel, Pakistan), Ciprobay (Bayer in the Philippines, Thailand, Vietnam, and Gulf states), Ciplox and Cifran (India), Ciprolet (Russia), and Ciriax (much of Latin America). Azithromycin is sold as Zithromax (originator), Zmax (US extended-release), Sumamed (Central and Eastern Europe), and Goflux or Azax (parts of South Asia).

Always ask pharmacists for the generic equivalent by its INN if the branded name draws a blank. Carry your antibiotic's INN name on paper or in your Nomedic International Patient Summary, where it is stored against your medication record.

The counterfeit and substandard drug problem

The WHO estimates that approximately 1 in 10 medical products in low- and middle-income countries is substandard or falsified^[6]. Antibiotics are among the most counterfeited drug classes. A substandard antibiotic may contain too little active ingredient to clear an infection, which is precisely the condition that selects for resistant bacteria.

Buying from a registered pharmacy attached to a hospital reduces this risk. Buying from market stalls, street vendors, or unlicensed online shops significantly increases it.

How to travel with prescribed antibiotics correctly

1

Carry the original packaging. Customs officials and border health officers match the label name to the INN on your documentation. Decanted tablets in unmarked containers create unnecessary delays.

2

Carry a doctor's letter on headed paper. State the INN, dose, duration, and clinical indication. This matters most for fluoroquinolones such as ciprofloxacin and levofloxacin, which are watched carefully at some borders due to dual-use concerns.

3

Keep antibiotics in carry-on luggage. If your hold bag is lost or delayed, an active infection cannot wait. Temperature stability is also more predictable in a cabin than in a cargo hold.

4

Know the import limit for your destination. Most countries allow a 30- to 90-day personal supply without special permits. Japan limits personal-supply prescription medication to one month without a Yakkan Shoumei (薬監証明) import certificate, which must be applied for three to five weeks before travel. The UAE, as of 29 December 2025, routes personal-use medication permits through the Emirates Drug Establishment (EDE) at ede.gov.ae rather than the former MOHAP portal. South Korea applies stricter quantity rules for fluoroquinolones than for first-line antibiotics. Singapore requires no advance approval for less than a three-month personal supply via the Health Sciences Authority.

When buying locally is actually reasonable

If you develop a confirmed bacterial infection abroad and cannot access a prescribing doctor within a safe timeframe, buying locally may be the right call. The key word is confirmed.

Travellers' diarrhoea is bacterial in the majority of cases, roughly 75-90% per CDC Yellow Book data, with enterotoxigenic E. coli (ETEC) accounting for the largest share, followed by Campylobacter, Shigella, and Salmonella. However, the WHO recommends oral rehydration salts as the first-line treatment for the typical mild-to-moderate case^[7]; empirical antibiotics (azithromycin or rifaximin) are reserved for moderate-to-severe cases or high-risk travellers, not routine acute diarrhoea. Buying a broad-spectrum antibiotic over the counter on day one of loose stools is the pattern that selects for resistance most strongly.

Telemedicine consultations, available through most international travel insurance policies, can give you a confirmed diagnosis and a local prescription in under an hour in most time zones. Use that route before reaching for the pharmacy shelf.

Storage in the heat

Most oral antibiotics are stable at room temperature up to 25-30 °C. That is a problem in countries where ambient temperatures routinely exceed 35 °C.

Amoxicillin-clavulanate (Augmentin) is particularly sensitive to humidity and heat. Reconstituted liquid suspensions must be refrigerated. Doxycycline degrades when exposed to direct sunlight.

Store antibiotics in an insulated pouch away from direct sun, and check your hotel mini-bar fridge if ambient temperatures are extreme. A degraded antibiotic is effectively a sub-therapeutic dose.

Frequently asked questions

Can I bring antibiotics in my carry-on luggage?

Yes. Most countries permit prescribed antibiotics in carry-on luggage with original packaging and a doctor's letter. Quantities are typically limited to a personal supply for the duration of your trip, usually 30 days. Check the specific import rules for your destination before you fly.

Are antibiotics available over the counter abroad?

In countries including India, Thailand, Vietnam, Egypt, and Brazil, antibiotics are dispensed without a prescription at many pharmacies. Regulations exist in most of these countries but enforcement is inconsistent. In Western Europe, Australia, and Japan, a valid local prescription is required.

What is the antibiotic brand name for ciprofloxacin abroad?

Ciprofloxacin is sold as Cipro in many markets, Cifran in India, Ciprobay in Germany, and Ciproxin in Italy and Spain. Ask for it by its INN (ciprofloxacin) if the branded name is not recognised.

Is it safe to buy antibiotics from a pharmacy abroad?

Buying from a registered pharmacy attached to a hospital or a licensed urban pharmacy is lower risk. The WHO estimates roughly 1 in 10 medical products in low- and middle-income countries is substandard or falsified, so avoid market stalls and unlicensed vendors.

Should I take antibiotics for travellers' diarrhoea?

Not routinely. Most cases of travellers' diarrhoea are viral or food-related and resolve with oral rehydration salts. Antibiotics are appropriate only for confirmed bacterial infections. A telemedicine consultation through your travel insurance can confirm whether antibiotics are indicated.

Antibiotics Abroad: Brand-Name Swaps, OTC Sales, and the Resistance Risk You Carry Home