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Introducing Periactin

Periactin is a prescription medication that is commonly used to treat allergies and allergic reactions. It belongs to a class of drugs known as antihistamines and is specifically designed to relieve symptoms such as itching, watery eyes, and runny nose caused by allergic conditions. Periactin is also used to treat migraine headaches and to stimulate appetite in underweight individuals.

Uses and Benefits

Periactin is highly effective in treating allergic conditions such as hay fever, hives, and allergic conjunctivitis. It works by blocking the action of histamine, a substance in the body that causes allergic symptoms. This medication also provides relief from migraine headaches by narrowing blood vessels in the brain and decreasing the release of certain natural substances that cause pain and inflammation. Additionally, Periactin is used to stimulate appetite in individuals who have a poor appetite and are underweight.

Side Effects

As with any medication, Periactin may cause side effects. Common side effects include drowsiness, dizziness, constipation, blurred vision, or dry mouth/nose/throat. These symptoms usually subside as your body adjusts to the medication. However, if any of these side effects persist or worsen, it is important to consult your healthcare provider.

Usage Instructions

Periactin should be taken as directed by your healthcare provider. The dosage is based on your medical condition, age, and response to treatment. It is typically taken by mouth with or without food, usually 2 to 3 times a day. To prevent unwanted side effects, it is important to take this medication exactly as prescribed. Do not increase your dose or take it more often than directed.

Safety Advice

Prior to taking Periactin, it is important to inform your healthcare provider about any allergies, medical history, and current medications you are taking, including over-the-counter drugs and herbal supplements. It is also advisable to avoid alcohol and other sedating medications while taking Periactin, as it may increase drowsiness and dizziness. In addition, this medication may cause blurred vision and impair your ability to perform tasks requiring alertness, so it is advisable to exercise caution when driving or using machinery.


Q: How quickly does Periactin work?

A: Periactin typically starts to work within 1 hour after oral administration.

Q: Can I take Periactin if I am pregnant or breastfeeding?

A: It is important to consult your healthcare provider before taking Periactin if you are pregnant or breastfeeding, as it may have potential risks to the unborn baby or nursing infant.

Q: What should I do if I miss a dose of Periactin?

A: If you miss a dose of Periactin, take it as soon as you remember. However, if it is almost time for your next dose, skip the missed dose and continue with your regular dosing schedule. Do not take a double dose to make up for a missed one.

Additional information

Additional information


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