Travelling With Medication in India and Abroad: Prescriptions, Customs and Cold Chain Storage

Carry the original prescription from a registered medical practitioner for every medication in your bag. For travel abroad, get a letter on the doctor's letterhead that states your name, the drug's generic name (not just the brand), the dosage, the condition it treats, and the duration of travel. A prescription alone, especially one written in Hindi or a regional language, may not satisfy a foreign customs officer who cannot read it.For travel within India, the Drugs and Cosmetics Act does not require you to carry a prescription for most over-the-counter drugs, but for Schedule H and Schedule H1 drugs, antibiotics, antidepressants, sleeping aids, opioid-based painkillers, a valid prescription is mandatory at the point of purchase and advisable to carry during travel. State borders do not have pharmaceutical checkpoints, but airlines and railway security can question unlabelled or large quantities of any drug.Keep medication in its original packaging. A strip of tablets in a zip-lock bag, stripped of its foil label, is the fastest way to trigger a secondary screening at any airport.

Insulin, certain cancer biologics, some vaccines, and GLP-1 receptor agonists (such as semaglutide, now increasingly prescribed in India) require continuous refrigeration between 2°C and 8°C. The moment you pull them out of a pharmacy fridge and put them in a bag, the clock starts.For flights, the rules are clear: carry cold-chain medication in your cabin baggage, never in checked luggage. Aircraft holds can drop well below freezing. The TSA in the United States and CISF at Indian airports both permit insulin and associated supplies (syringes, lancets, glucose meters) through security in quantities exceeding the standard 100ml liquid rule, provided you declare them and keep them separate for screening.For train travel in India, a Rajdhani or Shatabdi overnight, an insulated medical pouch with two or three reusable gel ice packs holds temperature for 12 to 16 hours if pre-chilled. FRIO wallets, which use evaporative cooling, are a reliable alternative and require no ice; they work as long as you can soak them in water every day or two. Open insulin (a vial or pen cartridge already in use) is stable at room temperature below 25°C for 28 days for most formulations, check the package insert for your specific brand, because this window varies.If you are travelling to destinations with unreliable power, parts of Rajasthan, hill stations in Himachal Pradesh during winter, or remote international destinations, identify a pharmacy or hospital near your accommodation that can store your supply before you arrive. Do not assume the hotel minibar fridge maintains 2 to 8°C; most run between 4°C and 12°C depending on the setting and how often the door opens.

Most countries allow travellers to carry a personal supply of medication for the duration of their trip, typically up to 90 days' worth. The United States, the United Kingdom, the UAE, Singapore, and Australia all follow this general principle, but the definition of "personal supply" and the documentation required differ.The UAE has one of the stricter regimes. The Ministry of Health and Prevention requires prior approval for controlled substances, including some benzodiazepines, opioids, and ADHD medications like methylphenidate, before you enter the country. Approval is obtained through the MOHAP online portal. Arriving without it, even with a valid prescription, can result in confiscation and detention. Indian travellers on long-term psychiatric or pain medication should check the UAE's controlled drug list specifically, since several drugs routinely prescribed in India appear on it.Japan prohibits certain stimulant-based medications entirely, including some common decongestants containing pseudoephedrine. Vicks inhalers, widely used in India, contain l-methamphetamine and are technically prohibited in Japan, though enforcement at the tourist level is inconsistent. The safer position is to not carry them.Singapore requires a doctor's letter for any quantity of controlled drugs and limits personal import to a 30-day supply. Malaysia, Thailand, and most of Southeast Asia follow similar frameworks.When entering India on return, the Customs Act permits duty-free import of medication for personal use without a fixed quantity cap, but quantities that appear commercial, multiple sealed boxes of the same drug, will be questioned. Declare them on the customs form. An undeclared quantity of a controlled substance is a criminal matter under the NDPS Act, not a customs technicality.

Tramadol, codeine-based cough syrups, alprazolam, clonazepam, zolpidem, these are among the most commonly prescribed controlled substances in India and among the most likely to cause problems at international borders.For these drugs, carry:- The original prescription, dated within the last six months- A doctor's letter specifying the drug, dosage, and medical necessity- Only the quantity you need for the trip, plus a small buffer- The medication in its original, labelled packagingSome countries require the prescription to be notarised or authenticated by the Indian embassy or a registered translator if it is not in English. Check the embassy website of your destination country at least four weeks before travel, not travel blogs, not forums. Requirements change and the official source is the only reliable one.For travel within India, carrying tramadol or alprazolam without a prescription is an offence under the NDPS Act. The quantity thresholds for what constitutes "personal use" versus "commercial quantity" are defined in the Act's schedule and are not large.A valid prescription in India for Schedule X drugs (which includes many benzodiazepines) is valid for six months and can be used for repeat dispensing. Keep a photocopy separate from the original in case the original is lost.The documentation that satisfies a customs officer at Chhatrapati Shivaji Maharaj International Airport in Mumbai and the documentation that satisfies a border officer in Riyadh are not the same document. Plan for both.