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Melatonin 3mg (melatonin / 褪黑素) is a prescription-only medicine (POM) used for the short-term treatment of jet lag in adults. At Ways Pharmacy it is supplied under a Patient Group Direction (PGD) after a pharmacist-led consultation has confirmed clinical suitability.
How to access this medicine
- Add the product to your order and complete payment.
- You will be sent a clinical consultation questionnaire by email.
- Our GPhC-registered pharmacist reviews your responses.
- If supply is clinically appropriate, the medicine is dispensed and dispatched.
- If supply is not appropriate, you will receive a full refund and a brief written explanation.
About this medicine
| Active ingredient | Melatonin 3mg (褪黑素) per tablet |
|---|---|
| Drug class | Hormone (regulates the sleep–wake cycle) |
| Licensed indications | Short-term treatment of jet lag in adults |
| Legal classification | POM — Prescription-Only Medicine (supplied under a Patient Group Direction after pharmacist assessment) |
| Available presentation | 3mg tablet |
| Adult use | Adults aged 18 and over; intended for short-term use |
| Patient leaflet | Melatonin PIL via emc — read before use |
Dosage (from the Summary of Product Characteristics)
The pharmacist will confirm the exact regimen for your circumstances during the consultation. The licensed dosing is summarised below.
- One 3mg tablet, swallowed whole with water, approximately 1 to 2 hours before bedtime.
- For jet lag, dosing is timed to the destination's bedtime; the pharmacist will advise on timing.
- Maximum one tablet in any 24-hour period.
- Intended for short-term use; if symptoms persist, consult your healthcare provider.
- Avoid alcohol, which may reduce effectiveness, and do not drive or operate machinery if you feel drowsy.
Who should not take this medicine
- People under 18 years of age
- Women who are pregnant or breastfeeding
- People with liver or kidney disease
- People with autoimmune conditions
- People with a known allergy to melatonin or any of the tablet's ingredients
- People with lactose intolerance, unless advised by a doctor (the tablet contains lactose)
- Tell the pharmacist about all other medicines, especially fluvoxamine, cimetidine, oestrogens (HRT or contraceptives), antidepressants, anticonvulsants (e.g. carbamazepine), anticoagulants, immunosuppressants and NSAIDs
Frequently asked questions
Do I need a prescription for Melatonin 3mg tablets?
Melatonin is a prescription-only medicine in the UK. At Ways Pharmacy it is supplied only after a pharmacist-led consultation, and the pharmacist may decline to dispense if it is not clinically suitable for you.
How does Melatonin help with jet lag?
Melatonin is a hormone produced naturally in response to darkness that helps regulate the sleep–wake cycle. Taken 1 to 2 hours before the destination bedtime, it can help the body adjust to a new time zone over a short course.
When should I take Melatonin 3mg?
The licensed timing is approximately 1 to 2 hours before bedtime, with no more than one tablet in any 24-hour period. The pharmacist will confirm the exact timing for your travel or sleep schedule during the consultation.
Is Melatonin safe to take long term?
Melatonin 3mg is licensed for short-term use only. If sleep problems continue beyond the recommended period, speak to your GP rather than continuing the medicine, so the underlying cause can be assessed.
What are the common side effects of Melatonin?
Most people tolerate melatonin well. Reported side effects can include drowsiness, headache, dizziness and nausea. Full side-effect information is in the Patient Information Leaflet, which should be read before starting the medicine.
Can I drive after taking Melatonin?
Melatonin can cause drowsiness. Do not drive or operate machinery after taking it, and avoid alcohol while using this medicine.
Regulatory information
- Legal status: POM (Prescription-Only Medicine)
- Marketing authorisation holder: confirm on the carton
- Supplied by: Ways Pharmacy, UK — GPhC-registered (registration number on the storefront footer)
- Patient Information Leaflet: Melatonin PIL via emc
- Suspected side effect? Report via the MHRA Yellow Card Scheme
This page provides factual information about a prescription-only medicine and is not an advertisement to the public. Supply is dependent on satisfactory completion of a clinical consultation reviewed by a GPhC-registered pharmacist. Always read the Patient Information Leaflet before use.
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Frequently Asked Questions
Are there lifestyle tips to support melatonin use for better sleep?
Yes, using melatonin alongside good sleep habits can improve results. Try going to bed at the same time each night, avoiding screens before bedtime, and creating a calm sleep environment. For a tailored treatment plan, Start Consultation to begin.
What happens after I place my melatonin order?
After you complete the consultation and payment, our admin team reviews your information for safety and suitability. If your chosen product isn’t appropriate, a pharmacist will offer an alternative. Once everything is approved, we’ll ship your order directly—no extra steps needed.
How do I start a melatonin treatment online?
Simply Start Consultation, select your melatonin product, and pay securely. Our admin team will review your medical information to confirm the treatment is appropriate. If not, our pharmacist will suggest a safe alternative. Once approved, your order is dispatched with no further steps required.
What is melatonin and how does it help with sleep?
Melatonin is a natural hormone that helps regulate your sleep-wake cycle. Melatonin supplements are commonly used to treat sleep disorders like insomnia or to help with jet lag. To begin treatment, Start Consultation, choose and pay for your medication, and our admin team will review your order to ensure it’s safe and appropriate.
Who can benefit from taking melatonin supplements?
Melatonin may help people with trouble falling asleep, shift workers, frequent travelers, or those adjusting to a new sleep routine. If you're unsure if it’s right for you, Start Consultation, complete a quick assessment, and if melatonin isn’t suitable, our pharmacist will recommend an alternative.
Reviewed Date
04 June 2025
Published On
04 June 2025
Last Updated
04 June 2025