
Variety of delivery options including next day & free delivery.
Pharmacy, clinic and prescribers based in Greater Manchester.
Start your treatment with a quick and free online consultation.
Variety of delivery options including next day & free delivery.
Pharmacy, clinic and prescribers based in Greater Manchester.
Start your treatment with a quick and free online consultation.
Fill in a quick online consultation for our licensed pharmacists to review.
Our pharmacists will review your treatment to ensure it’s suitable.
Your treatment will be delivered to your door quickly & discreetly.
Periactin Tablets contain cyproheptadine hydrochloride 4mg, an antihistamine used to relieve symptoms of allergies such as hay fever, skin reactions, and itching. It works by blocking histamine, a substance released by the body during allergic reactions, helping to reduce symptoms like sneezing, runny nose, watery eyes, and skin irritation.
Periactin Tablets are suitable for adults and children aged 2 years and over and are supplied in packs of 30 tablets.
| Medication Name | Periactin Tablets 4mg |
| Active Ingredient | Cyproheptadine hydrochloride 4mg per tablet |
| Medication Form | Oral tablets |
| Used to Treat | Hay fever, allergic reactions, itching, and skin allergies |
| Available Sizes | Pack of 30 tablets |
| Who Can Use It | Adults and children aged 2 years and over |
| Prescription Required? | No – Over the counter |
Periactin Tablets are used to relieve symptoms of allergic conditions such as hay fever, skin allergies, urticaria (hives), and itching. They help control sneezing, runny nose, watery eyes, and allergic skin reactions by reducing the effects of histamine in the body.
Periactin is suitable for adults and children aged 2 years and over when prescribed by a healthcare professional.
Do not take Periactin Tablets if you:
Speak to a healthcare professional before use if you:
Periactin may cause drowsiness. Avoid alcohol and take care when driving or operating machinery.
Common side effects:
Less common:
Seek medical help immediately if severe allergic reactions occur.
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Page content authored by Amjad Khan, last reviewed by Dr Hussain Ahmad on 6th March 2026.



