US/EU/AU Drug Brand Equivalents

The same medication is often sold under completely different brand names in different countries. This guide helps travelers, expatriates, and healthcare consumers identify equivalent medications across the United States, European Union, and Australia.

Why Brand Names Differ by Country

Pharmaceutical companies market the same active ingredients under different brand names in different regions for a variety of reasons: existing trademark conflicts, local marketing strategies, regulatory naming conventions, and regional acquisitions. While the generic name (International Nonproprietary Name, or INN) remains consistent worldwide, the brand name can vary dramatically.

For example, the popular pain reliever acetaminophen is known by that generic name in the US, but the INN is paracetamol, which is used as both the generic and common name in the EU, UK, and Australia. The brand name also differs: Tylenol in the US, Panadol in the UK and Australia, and Efferalgan in France.

Understanding these equivalents is critical for travelers who run out of a medication abroad, expatriates establishing new healthcare routines, and anyone purchasing medications internationally. Always verify the generic (INN) name to ensure you are getting the correct medication.

Pain Relievers and Fever Reducers

Generic Name (INN)US BrandEU/UK BrandAU BrandNotes
Acetaminophen / ParacetamolTylenolPanadol, CalpolPanadol, PanamaxSame drug; "acetaminophen" is US adopted name, "paracetamol" is INN
IbuprofenAdvil, MotrinNurofen, BrufenNurofen, Herron BlueWidely available OTC in all regions
NaproxenAleve, NaprosynNaprosyn, FeminaxNaprogesic, NaprosynOTC in lower doses; Rx in higher doses
Aspirin (Acetylsalicylic acid)Bayer, EcotrinAspirin, AspegicAspirin, CartiaBrand "Aspirin" is genericized in many countries
DiclofenacVoltaren, CataflamVoltarol, DicloflexVoltaren, FenacTopical and oral forms available
CelecoxibCelebrexCelebrex, CelecoxibCelebrexPrescription-only COX-2 inhibitor

Allergy Medications (Antihistamines)

Generic Name (INN)US BrandEU/UK BrandAU BrandGeneration
LoratadineClaritinClaritynClaratine2nd generation (non-drowsy)
CetirizineZyrtecZirtek, ReactineZyrtec, Zentop2nd generation
FexofenadineAllegraTelfast, AllegraTelfast2nd generation
DesloratadineClarinexAerius, NeoclaritynAerius2nd generation (loratadine metabolite)
DiphenhydramineBenadrylBenadryl, NytolBenadryl, Unisom1st generation (sedating)
ChlorphenamineChlor-TrimetonPiritonChor-Tripolon1st generation (sedating)
Azelastine (nasal spray)Astelin, AsteproAllergodilAzep, AstelinNasal antihistamine

Gastrointestinal Medications

Generic Name (INN)US BrandEU/UK BrandAU BrandUse
OmeprazolePrilosecLosec, MepradecLosec, MaxorProton pump inhibitor (PPI)
PantoprazoleProtonixProtium, ControlocSomac, PantolocPPI
EsomeprazoleNexiumNexium, EmozulNexiumPPI
RanitidineZantacZantacZantacH2 blocker (withdrawn in many markets due to NDMA contamination — check current status)
FamotidinePepcidPepcid, FamodilPepcidineH2 blocker
LoperamideImodiumImodiumImodium, Gastro-StopAnti-diarrheal
OndansetronZofranZofran, OndemetZofran, OndazAnti-nausea (prescription)
Calcium carbonateTumsRennie, TumsMylanta, RennieAntacid

Cold and Flu Medications

Generic Name (INN)US BrandEU/UK BrandAU BrandNotes
PseudoephedrineSudafedSudafed, Nurofen Cold & FluSudafed, CodralBehind-counter in US and AU; restrictions vary in EU
GuaifenesinMucinexRobitussin, Chesty CoughBisolvon, RobitussinExpectorant
DextromethorphanRobitussin DM, DelsymRobitussin, BenylinRobitussin, Bisolvon DryCough suppressant
PhenylephrineSudafed PESudafed, GalpseudSudafed PE, DemazinOral decongestant (less effective than pseudoephedrine)
OxymetazolineAfrinAfrin, OtrivineOtrivin, Sudafed NasalNasal spray decongestant; do not use >3 days

Antibiotics

Generic Name (INN)US BrandEU/UK BrandAU BrandClass
AmoxicillinAmoxilAmoxilAmoxil, CilamoxPenicillin
Amoxicillin + ClavulanateAugmentinAugmentin, Co-AmoxiclavAugmentin, ClamoxylPenicillin + beta-lactamase inhibitor
AzithromycinZithromax, Z-PakZithromax, AzithromycinZithromax, ZeddMacrolide
CiprofloxacinCiproCiproxinCiproxin, CiloxanFluoroquinolone
DoxycyclineVibramycin, DoryxVibramycin, DoxyvalDoryx, DoxyTetracycline
ClarithromycinBiaxinKlaricidKlacidMacrolide
MetronidazoleFlagylFlagyl, MetrogylFlagyl, MetrogylNitroimidazole

Cardiovascular Medications

Generic Name (INN)US BrandEU/UK BrandAU BrandDrug Class
AtorvastatinLipitorLipitorLipitor, Atorvastatin SandozStatin (cholesterol)
RosuvastatinCrestorCrestorCrestorStatin
SimvastatinZocorZocorZocor, SimvarStatin
LisinoprilZestril, PrinivilZestril, CaraceZestril, LisprilACE inhibitor
AmlodipineNorvascIstin, NorvascNorvasc, AmdepinCalcium channel blocker
MetoprololLopressor, Toprol XLBetaloc, LopresorBetaloc, MinaxBeta blocker
WarfarinCoumadin, JantovenMarevan, WarfarinMarevan, WarfarinAnticoagulant
ClopidogrelPlavixPlavixPlavix, Apo-ClopidogrelAntiplatelet
ApixabanEliquisEliquisEliquisDOAC (novel anticoagulant)
LosartanCozaarCozaarCozaar, Losartan SandozARB

Tips for Finding Your Medication Abroad

If you are traveling or relocating and need to find a medication in another country, follow these steps:

  1. Know your generic (INN) names: Generic names are internationally standardized and recognized by pharmacists worldwide. Write them down before you travel.
  2. Carry your prescription: Bring a letter from your doctor listing your medications by generic name, dosage, and indication. This is especially important for controlled substances.
  3. Translate medication names: In non-English-speaking countries, even generic names may have slight spelling variations (e.g., "paracetamol" in French, "paracetamolo" in Italian).
  4. Check OTC vs. prescription status: A medication available OTC in one country may require a prescription in another. For example, certain antihistamines are OTC in the US but prescription-only in some EU countries.
  5. Verify dosage forms: The same medication may be available in different strengths or formulations. Always verify the dosage matches what your doctor prescribed.
  6. Use pharmacy translation services: Many international pharmacies have translation tools or staff who can help identify equivalents.

Regulatory Differences to Be Aware Of

Medication regulations vary significantly between the US, EU, and Australia:

Pro Tip: Before international travel, create a medication reference card listing each drug you take by generic name, brand name in your home country, dosage, and a photo of the packaging. Store this in your phone and keep a printed copy with your travel documents.

Medical Disclaimer: The information provided on this page is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult with a qualified healthcare provider or pharmacist before making any decisions about medications, supplements, or treatments. Never disregard professional medical advice because of something you read here.