Few things derail a trip faster than realizing your medication is running low in a country where you don't know the rules, the language, or the nearest pharmacy. Most of these situations are avoidable with a bit of preparation before you leave.
Before you leave
Keep medications in their original, labeled packaging rather than a pill organizer — customs officers and pharmacists both rely on that packaging to identify what you're carrying. Pack a printed copy of your prescription, and if you're on a controlled substance (certain sleep aids, ADHD medication, or strong painkillers), ask your doctor for a signed letter explaining the diagnosis and dosage. Some countries also require this to be translated.
Crossing borders
Rules vary far more than people expect. What's freely available in one country can be tightly restricted, or even banned, in another. Within the EU, travelers carrying certain controlled medications can request a Schengen certificate from their prescribing doctor, which is recognized across member states for short stays. Outside the EU, it's worth checking the destination country's embassy website directly — the list of restricted substances is rarely intuitive.
If you run out
Local pharmacies typically won't fill a foreign prescription outright, and finding a new doctor to write one can take days you don't have. This is usually where telemedicine is fastest — a licensed doctor can review your situation over a video call and issue a local e-prescription the same day, without you needing to track down a walk-in clinic in an unfamiliar city.