Permitted medications for pilots: what you can and cannot take before flying

Which medications are permitted for pilots and which are categorically prohibited? The question comes up at every routine medical consultation and every cold. The short answer: the EASA rule is pragmatic — there is no definitive “white list”, but there is a clear set of principles by which the AME (Aero-Medical Examiner) and the pilot assess whether a substance is compatible with flight. This article explains, in plain language for EASA pilots, which permitted medications for pilots are generally accepted, which are prohibited, what “permitted with caution” means, and how the ground trial principle works.

The EASA framework for permitted medications for pilots

Unlike the FAA, which publishes explicit lists of accepted / prohibited drugs, EASA applies an individual assessment along three axes: side effects of the substance on cognitive and motor performance, the impact of the underlying condition for which it is prescribed, and interactions with the flight environment (dehydration, hypoxia, acceleration). The reference document is the “Use of Medication” chapter in the EASA publication, which sets out the principles the AME applies to each case.

For context on chronic conditions requiring permanent treatment, see our article on chronic conditions and the pilot medical certificate.

Three categories of permitted medications for pilots — guidance overview

At the AME’s office, medications are informally grouped into three categories. Here is a synthesis of the most frequent substances pilots use.

The three categories used to assess permitted medications for pilots.

Generally permitted. Second-generation antihistamines (loratadine, desloratadine, fexofenadine, bilastine), paracetamol and ibuprofen at standard therapeutic doses, modern antihypertensives (ACE-I, ARBs, calcium channel blockers), statins, levothyroxine, proton-pump inhibitors (PPIs), metformin. These are compatible with flight as long as the pilot has no individual side effects.

Permitted with caution. Cetirizine (generation II but with mild sedation in some patients), beta-blockers (accepted if exercise tolerance is preserved), antibiotics (compatible if the underlying disease allows flight). For all of these, the AME recommends a “ground trial” — a minimum 48-hour test on the ground before resuming flight.

Prohibited for flight. First-generation antihistamines (diphenhydramine, chlorpheniramine, hydroxyzine) — all sedating. Opioids (codeine, tramadol, morphine, oxycodone), benzodiazepines, most tricyclic antidepressants. These are categorically incompatible with flight as long as they are active in the body.

Frequent traps: OTC drugs and combinations

Many over-the-counter products contain substances that ground a pilot without them realising it. The most frequent traps are:

• “Cold cures” and cough syrups containing codeine, high-dose dextromethorphan, or first-generation antihistamines disguised under brand names.
• Pseudoephedrine and phenylephrine (systemic nasal vasoconstrictors) — can raise blood pressure and heart rate, contraindicated before flight.
• “Strong” analgesic combinations that include codeine alongside paracetamol or ibuprofen.
• Dietary supplements with energising or sedating effects (certain melatonin formulations, kava, valerian) — loosely regulated but can affect vigilance.

How to decide: the ground trial principle for permitted medications for pilots

Even for a substance considered “permitted”, the golden rule is individual testing on the ground. Before flying with a new medication, do a minimum 48-hour ground trial to observe whether side effects appear (drowsiness, attention decrement, vertigo, palpitations, blood pressure changes). If any of these appear, the medication is not compatible with flight in your case, regardless of the general classification.

The reporting obligation to your AME

Per Part-MED MED.A.020, the pilot is obliged to report to the AME any prolonged medical treatment, any significant change in the therapeutic regimen and any new condition. Proactive reporting protects both the pilot (against retroactive certificate suspension) and operational safety.

Frequently asked questions about permitted medications for pilots

If I take an aspirin occasionally, do I need to report it? For occasional use (1-2 doses), it is not mandatory. If it becomes chronic treatment (e.g. daily cardioprotective dose), yes — at the next AME exam.

Can I take vitamin D, magnesium, omega-3 supplements? In principle, yes. Standard dietary supplements are not incompatible with flight. Exception: high-dose melatonin or sedating formulations.

What if my doctor prescribes an antibiotic? The antibiotic itself is usually compatible. But the disease for which you are taking it (fever, dysentery, symptomatic urinary tract infection) requires grounding until clinical resolution anyway.

Conclusion

The list of permitted medications for pilots is not a static catalogue but a set of principles: no side effects, ground trial on the ground, proactive reporting to the AME. The simple rule: if a substance can affect vigilance, coordination or judgement, it is not compatible with flight, no matter how “trivial” it seems at the pharmacy.

How LaMed Clinic helps with permitted medications for pilots

The article gives the general framework, but every therapeutic regimen has particularities: dose, duration, interactions. At LaMed Clinic you receive a focused assessment of your medications.

Specifically, through the LaMed Clinic contact form you can get:

• Verification of the compatibility of your current medications with flight, based on your treatment file.
• Suggestions for safer alternatives you can discuss with your treating physician, without compromising treatment efficacy.
• Consultancy on ground trials — how to do it correctly, what to monitor, when to safely resume flying.
• Support for AME reporting — what information to convey, in what format.

All requests are handled confidentially. A single message via the contact page is enough.

Official sources and references

1. EASA — Use of Medication in the Aviation Environment (ch. 9).

2. EASA — Easy Access Rules for Medical Requirements (Part-MED).

3. IFALPA — Human Performance Briefing Leaflet — Medication and Flying (19HUPBL05).

4. FAA — Guide for Aviation Medical Examiners — Pharmaceuticals (comparative reference).

5. AOPA — Medications Database.

Disclaimer

This material is informative and educational in nature. It does not constitute medical advice, an aeromedical opinion or an official interpretation of Part-MED. The decision regarding the compatibility of a medication with flight belongs exclusively to an authorised AME / AeMC. EASA regulations are updated periodically; always check the version in force.