Product Description

Periactin is an allergy relieving pill of the antihistamine class that offers comprehensive relief from allergic manifestations and symptoms ranging from sneezing, runny nose, watery eyes, hives, itching and various other skin problems. It is also identified by its generic name Cyproheptadine.


Moreover, the medicine treats an array of bacterial infections. Cyproheptadine 4mg is highly effective in controlling hay fever, which is a kind of allergic reaction. Even people who are haunted of scary nightmares as a consequence effect of post-traumatic stress disorder can consume Periactin. In this way, the quality can be ascertained.

Since it is categorized under cyproheptadine group of drugs, it works by obstructing the production of histamine, a kind of natural chemical produced during any allergic reaction. It also blocks one more substance produced by the body called serotonin.

The medicine should not be used in children and infants. Given its ability to control wide range of allergic symptoms in the body, the medicine is categorized as a broad spectrum anti-histamine drug. It is not advised to take this medication if a person is has diabetes, ulcer, asthma or any disease that weaken the body. It is better advised to take Periactin and commence the course of therapy at the earliest instance upon observing/experiencing any allergic symptoms in the body.

Dosage and Administration

The widely used dosage strength of the medicine is Cyproheptadine 4mg. However, the pill is also available in 2mg dosage strength. Adults down with severe allergic reaction should be administered with the 4mg pill thrice a day. For the treatment of Anorexia Nervosa, 2mg of cyproheptadine should be administered four times on a daily basis. The dosage strength can be increased up to 12mg or 16mg.Cyproheptadine is an extremely potent antihistamine drug and hence it should be administered only in genuine formulation.

What to do in case of missing a dose and overdose?

If you have missed a dose of periactin, then take it as soon as you remember. If it has become time to take the next dose of this medicine, then you can skip the missed dose and take the current dosage.

Never take two doses of this medicine at once or extra doses to make up the missed dose. For overdose of Periactin, rush to the nearest hospital immediately.

What to discuss with your health care professional before starting a course of treatment with Periactin?

You can discuss with your doctor about the duration of this medical course and how long you need to continue it. This is important for you to ascertain the due course of this allergy medicine.

You can check with the doctor for the possible side effects that would arise upon taking this medicine and how mild or severe they could be. Confirm with your health care professional if there could be any drug interactions if Periactin is taken along with other medicines and what medicines can pose serious threat if taken together.

You can also get to know if a generic version of this med can be available so that you can avail it for a cheap price. You should discuss with the physician about all the other medicines you might be taking presently or have taken in the past.

Side Effects

If you experience any signs of allergic reactions like hives, itching, breathing difficulty, swelling of the face, lips or tongue, then you need to receive emergency medical aid immediately.

Common and less serious side effects

  • Blurred vision
  • Nausea, drowsiness, dizziness
  • Constipation, diarrhea
  • Sleeping trouble i.e. insomnia
  • Increased sweating
  • Frequent urination
  • Changes in appetite

Severe side effects

  • Seizure
  • Hallucinations
  • Pounding heartbeats
  • Ringing in the ears
  • Dark colored urine


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