As of 13 August 2026, AI cannot check whether your medicines interact.

What to actually do

1. Hand it to a person

   The route this page recommends

   Someone with a licence or accountable authority has to sign this before it counts.

2. Use a tool built for this

   Second choice

3. Do it yourself

   The distant third

   A chat interface gets you a draft, but you cannot verify it yourself. That is the catch.

   How to actually do it

   1. Gather every prescription, over-the-counter medicine, vitamin, supplement, herbal product, and relevant substance you currently use, including items taken occasionally.
   2. Open each packet, prescription label, or medicine record and write down the exact name, active ingredient if shown, strength, form, dose, and usual time taken.
   3. Add allergies or previous reactions, pregnancy or breastfeeding where relevant, relevant medical conditions, and any new symptoms; do not omit a product because it seems unrelated.
   4. Paste the completed list into the prompt and ask the chatbot to identify missing label details and prepare questions for a UK pharmacist.
   5. Compare the chatbot's medicine names and strengths against the packets and prescription labels, correcting any mismatch before using the list.
   6. Send the corrected list and the chatbot's questions to your pharmacist or prescriber and ask them to confirm the combination before changing how you take anything.
   7. If you have urgent or worrying symptoms, contact NHS 111 through https://111.nhs.uk or by telephone rather than waiting for an AI answer.

   Prompt

   Help me prepare a medicine-safety check for a UK pharmacist. Do not diagnose me, tell me that a combination is safe, or tell me to start, stop, change, or combine any medicine. Do not treat your answer as a substitute for a pharmacist, prescriber, or NHS advice.
   
   Here is the complete list I have gathered:
   - Prescribed medicines: [name, strength, form, dose, and when taken]
   - Over-the-counter medicines: [name, strength, form, dose, and when taken]
   - Vitamins, supplements, herbal products, and recreational substances: [list or say none]
   - Allergies or previous medicine reactions: [list or say none known]
   - Pregnancy or breastfeeding: [state if relevant or say not applicable]
   - Relevant conditions: [list or say none to add]
   - New symptoms or concerns: [describe briefly or say none]
   
   Organise this information into a clear list for a pharmacist. Identify missing details I should check from the packets or prescription labels. List possible interaction questions only as questions for the pharmacist, not as conclusions. Tell me which details may need urgent NHS 111 advice, without diagnosing me. Do not invent any medicine information. If you cannot identify a medicine exactly, say so and ask me to check the active ingredient and strength.

   Open it prefilled in ChatGPT or Claude, or copy it into Gemini, which takes no prefill link.