In short
Medication can call your fitness to drive into question, especially long-term medication with opioids or sedatives, a newly started medication or combined use with alcohol or benzodiazepines. With stable, medically supervised treatment without additional substance use and without signs of impairment, on the other hand, fitness to drive is possible. Whether you may drive is decided in your individual case by a specialist's medical findings, not by this guide.
When can medication lead to an MPU?
Medication can lead to an MPU (medical-psychological assessment) if the driving licence authority (Fahrerlaubnisbehörde) has doubts about your fitness to drive. The legal bases are § 11 FeV (Driving Licence Regulation, Fahrerlaubnis-Verordnung) for general fitness and illnesses and § 14 FeV, which covers medicinal products as well as narcotics.
Typical reasons are reports from doctors, age-related doubts or an incident in road traffic. Often the issue is less the medication alone than the illness behind it, such as epilepsy, diabetes, mental disorders or cardiovascular diseases.
Not every medical question ends in an MPU. A specialist's report often serves as proof, and a medical MPU may be added if necessary. The guide Medical report or MPU explains the difference. The page medical MPU gives an overview of medical questions.
What speaks for and against fitness to drive?
Stable, medically supervised treatment without signs of impairment speaks for fitness to drive. A recent start of medication and, above all, combined use speak against it.
| Situation | Assessment according to the assessment guidelines |
|---|---|
| Stable opioid or substitution therapy (e.g. methadone) | Fitness to drive possible: medically supervised, without additional substance use, without signs of impairment |
| ADHD medication (e.g. methylphenidate), stably adjusted | Fitness to drive possible under the same conditions |
| Newly starting a medication | Tends to speak against fitness to drive |
| Combined use with alcohol or benzodiazepines | Speaks against fitness to drive |
| Long-term medication with opioids or sedatives | Can be a reason for doubts about fitness |
Many illnesses are easily treatable. Fitness to drive can then remain, possibly with conditions or a time limit. How the decision turns out depends on the severity of your illness and how well it is controlled.
What does the medication privilege cover?
The medication privilege (Medikamentenprivileg) under § 24a Abs. 4 StVG protects you from the administrative offence that would otherwise be triggered by the mere detection of certain substances in your blood. The condition is that the substance comes from taking as intended a medicinal product prescribed for a specific medical condition.
As intended means: a clear medical prescription, taking it according to the dosage, no misuse and no overdose. However, the privilege has clear limits:
- No protection if you are unfit to drive: if you show signs of impairment or cause an accident, you face punishment and doubts about your fitness to drive.
- No protection without a prescription: substances you obtained yourself are not covered.
- No protection with combined use: alcohol or other substances in addition speak against fitness.
The same principles apply to cannabis on prescription. The guide Medical cannabis and driving describes the details.
Which examples do the assessment guidelines give?
The assessment guidelines (Begutachtungs-Leitlinien) of the BASt set concrete standards for some illnesses in which medication plays a role. Two examples show how different the requirements are.
Epilepsy
With epilepsy, fitness to drive for group 1 (car, motorcycle) is usually only given after at least 1 year without seizures, in certain constellations earlier, from 3–6 months. For group 2 (lorry, bus, passenger transport), much stricter standards apply, usually only without anti-epileptic drugs and after a long period without seizures.
Diabetes
With diabetes, fitness to drive is usually given as long as there are no severe or repeated episodes of low blood sugar requiring help from others. Good control, training and self-monitoring are required.
For professional drivers and passenger transport, stricter fitness requirements apply under § 48 FeV. If you drive for work, you should clarify medical questions particularly early.
What proof do you need for a medical question?
For a medical question, you mainly need a specialist's report, which as a rule is no more than 3 months old and contains an explicit statement on fitness to drive. A general medical certificate without this statement will not help you much.
This is how to proceed:
- Read the order: which illness or medication does the authority name, and which question is to be clarified?
- Speak to your specialist: ask for a report with diagnosis, medication, dosage, course of the illness and a statement on fitness to drive.
- Plan the timing: on the day of the assessment, the report should be no more than about 3 months old.
- Disclose your medication openly: in the questionnaire and the interview, consistency counts. Contradictions between your statements, findings and the file are noticed.
- Clarify legal questions: if you have doubts about the order, a specialist lawyer for traffic law (Fachanwalt für Verkehrsrecht) can help.
The page MPU procedure describes what the medical examination at the MPU involves.
How does this differ from a drug MPU?
The difference lies mainly in the medical background. A medical question concerns an illness and medically prescribed treatment. A drug MPU under § 14 FeV concerns the use of narcotics without this background.
With „hard" drugs such as cocaine, amphetamine or opiates, according to the principles even a single use can rule out fitness to drive, regardless of whether you drove. The licence is then usually only granted again with proof of abstinence (Abstinenznachweis) and an MPU, often over 6 or 12 months.
The line can become blurred if prescribed medication is misused, overdosed or taken together with other substances. Then the medication privilege no longer applies, and the question can shift towards misuse. That is exactly why an honest account that matches the file is important.
What should you keep in mind in everyday life?
In everyday life, above all you should take your doctor's advice on fitness to drive seriously and not change anything on your own. Whether a medication impairs your driving is a matter for doctors to assess.
Phases of starting a new medication or changing the dose are particularly critical, as is any combination with alcohol or benzodiazepines. If you are unsure whether you may drive, clarify this with your doctor before driving. Different rules apply to drug use without a medical background, see MPU because of drugs.
This guide replaces neither medical advice nor legal advice. Your specialist is responsible for medical questions, a specialist lawyer for traffic law for legal ones.
What you can do now
- Check the order: note which illness or medication the authority refers to.
- Make an appointment with a specialist and ask for a report with an explicit statement on fitness to drive.
- Put together a medication plan: active substances, dosage, since when, prescribed by whom.
- Rule out combined use: no alcohol, no sedatives that have not been prescribed.
- Look for support if needed and find suitable preparation.
Frequently asked questions
May I drive while taking prescribed painkillers?
That depends on the medication, the dose and your condition, and should be clarified with your doctor. The medication privilege under § 24a Abs. 4 StVG protects you from the administrative offence if you take it as intended. It does not protect you if you show signs of impairment or are unfit to drive.
Can I keep or get back my driving licence with methadone substitution?
This is possible if the therapy is stably adjusted and medically supervised, without additional substance use and without signs of impairment. Combined use, for example with alcohol or benzodiazepines, speaks against it. The assessment decides in the individual case.
How old may my specialist's findings be?
As a rule, no more than 3 months old. The report should also contain an explicit statement on fitness to drive. So plan the appointment shortly before the assessment.
Is a medical MPU the same as a drug MPU?
No, a medical question concerns illnesses and medically prescribed medication, governed mainly by § 11 FeV. A drug MPU under § 14 FeV concerns use without a medical background and usually proof of abstinence.
