Someone else's prescription – why not to share it
Why a prescription cannot safely be transferred to another person, even when the symptoms look similar, and what to do instead.
A prescription belongs to the person assessed
A prescription is based on one person's symptoms, medical history, allergies, other medicines, age, pregnancy status and examination. Two people with the same headache, cough or pain can have different causes and different risks. Sharing a prescription can delay the right diagnosis or cause harm.
Why a similar symptom is not enough
- The medicine may interact with treatment you already take.
- The strength or formulation may be wrong for your age, weight or organ function.
- A symptom may be an emergency or a sign of an illness the medicine will hide.
- Unused antibiotics or controlled medicines can create additional safety and legal problems.
The same rule applies to medicines saved from a previous illness. The label is not a standing permission to reuse a course.
What to do when you need help
- Speak to a pharmacist about the symptom and how long it has lasted.
- Take a complete medicine list, including traditional remedies and supplements.
- Follow the advice about monitoring or a clinic visit.
- Return unwanted medicines through the safe disposal route recommended by a pharmacy.
Get urgent advice after a shared medicine
Common questions
- Can I take my partner's prescription if I have the same symptoms?
- No. The medicine and dose were selected for the person assessed. Ask a pharmacist or clinician about your own symptoms instead.
- Can I use leftover antibiotics for a new infection?
- No. The new illness may not be bacterial, and the old product, dose or duration may be wrong. Get advice for the current problem.
Sources
- Medicines Online Directory and approved patient information leafletsSouth African Health Products Regulatory Authority
- Primary Healthcare Standard Treatment Guidelines and Essential Medicines ListNational Department of Health, South Africa
Last reviewed 26 August 2026.