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Dopamine receptor modulators. Do not take more than two tablets in a Periacton to 6 hour period. Periactin 4-mg tablets are the subject of NDA People with a peptic ulcer that is causing Periacton in the gut stenosing peptic ulcer. This medication may cause drowsiness. How to take it Swallow the tablet with a glass of water. There have been some trials to see if cyproheptadine could reduce sexual dysfunction caused by SSRI and antipsychotic medications. This may affect your ability to drive. Type keyword s to search. Tell your doctor or pharmacist if you are taking any other medicines, including medicines that you buy without a prescription from your pharmacy, supermarket or health food shop. The following are some of the side effects that are known to be associated with cyproheptadine. We comply with the HONcode standard for trustworthy health information - verify here. Enhanced Content - Table of Contents. This document has been published in the Federal Register. Cyproheptadine was studied in one small trial as an adjunct in people with schizophrenia whose condition was stable and were on other medication; while attention and verbal fluency appeared to be improved, the study was too small to draw generalizations from. Cyproheptadine is used to treat sneezing, itching, watery eyes, runny nose, and other symptoms of allergies. DIY baby hand and feet moulds. This includes prescription, over-the-counter, vitamin, and herbal products. Tell your doctor if you have or have Periactinn any medical conditions, especially the following: lung problems, such as asthma or bronchitis an overactive thyroid gland raised eye Pediactin heart disease high blood pressure. If you're already taking any medicines, including those bought without a prescription and herbal medicines, it's important to check with your pharmacist or doctor before you take Psriactin, to make sure that the combination is safe. Periwctin information is not intended as a substitute for PPeriactin advice and should not be exclusively relied on to manage or diagnose a medical condition. Available in packs of tablets. Forgot password? Relieving itching associated with chickenpox or eczema. Relieving the symptoms of allergic conditions such as hay feverpet allergiesdust mite allergiesnettle rash urticariafood allergies and reactions to insect bites or medicines. Weight gain. Other more serious symptoms, especially in infants and children, include hallucinations seeing, feeling or hearing things that are not thereconvulsions, heart attack, and a stop in breathing. These are very serious side effects. Cyproheptadine comes in syrup and tablet forms. Toxicology emergencies. How to take it Swallow the tablet with a glass of water. These are serious side effects. Wheezing or difficulty breathing. Tell your doctor immediately or go to Accident and Emergency at your nearest hospital if you notice any of the following:. Home Home. Alternative Names. It can also cause more severe allergic reactions such as angioneurotic oedema. If Periactkn the dose can Periactin increased up to a maximum of eight tablets in 24 hours. You will find a full list in the manufacturer's information leaflet supplied with your medicine. Before Calling Emergency. Dry mouth, nose or throat. Blurred or double vision. For more information read our page on medication safety for older Periactin. Follow the directions on your prescription label. Tell Periaftin doctor or pharmacist if you notice anything else that is making you feel unwell. Of Interest This Week. If you are pregnant or breast-feeding, consult your doctor Periactn pharmacist before using any form of medicine. However, it's Periacton to use Periactin in combination with other types of medicine for allergies Periactln hay fever, for example nasal sprays Pegiactin eye drops. If you are above 65 years of age you are more likely to feel dizzy, drowsy and lightheaded. Weight gain. These are serious side effects. It is important to come to all doctor appointments so your child's doctor can make sure your child is getting the right dose and that the medication is not causing side effects. By the pressure delivered on legs, compression stockings prevent blood from stagnating in the veins and allow a better blood flow. Cyproheptadine is not expected to be harmful to an unborn baby. Do not drive a car or operate machinery if you feel drowsy, sleepy, tired or dizzy. Last updated It may make these conditions worse. For more information or other country rates, see shipping info. Taking other medicines Tell your doctor or pharmacist if you are taking any other medicines, including medicines that you buy without a prescription from your pharmacy, supermarket or health food shop. We have what your pet needs.
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Periactin is an antihistamine given to help relieve cold- and allergy-related symptoms such as hay fever, nasal inflammation, stuffy nose, red and inflamed eyes, hives, and swelling. Periactin may also be given after epinephrine to help treat anaphylaxis, a life-threatening allergic reaction. Some doctors prescribe Periactin to treat cluster headache and to stimulate appetite in underweight people.


Take Periactin exactly as prescribed by your doctor.

  • Do not take it in larger amounts or for longer than recommended.
  • Take Periactin by mouth with or without food.
  • Do not miss any doses. If you miss a dose of Periactin, take it as soon as possible. If it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not take 2 doses at once.
  • Always ask a doctor before giving a cold or allergy medicine to a child.  

Ask your health care provider any questions you may have about how to use Periactin.


Store Periactin at room temperature between 59 and 86 degrees F (15 and 30 degrees C). Store away from heat, moisture, and light. Do not store in the bathroom. Keep Periactin out of the reach of children and away from pets.


Active Ingredient: Cyproheptadine.

You should not use Periactin if you are allergic to cyproheptadine, or if you have:

  • narrow-angle glaucoma;
  • a stomach ulcer or obstruction;
  • an enlarged prostate or urination problems;
  • if you are having an asthma attack;
  • if you are elderly or have a debilitating disease.

If you have any of these other conditions, you may need a dose adjustment or special tests to safely use this medication:

  • glaucoma;
  • a history of asthma;
  • high blood pressure;
  • heart disease; or
  • an overactive thyroid.

FDA pregnancy category B. Periactin is not expected to be harmful to an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant during treatment. It is not known whether Periactin passes into breast milk, but if it does it could harm a nursing baby. Do not use this medication while you are breast-feeding a baby. Do not give Periactin to a child younger 2 years. Older adults may be more likely to have side effects from Periactin.

Important safety information:

  • Periactin can cause side effects that may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be awake and alert.
  • Avoid drinking alcohol. It can increase some of the side effects of Periactin.

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Stop taking Periactin and call your doctor at once if you have a serious side effect such as:

  • confusion, hallucinations, unusual thoughts or behavior;
  • seizure (convulsions);
  • ringing in your ears;
  • feeling like you might pass out;
  • fast or pounding heartbeats;
  • easy bruising or bleeding;
  • urinating less than usual or not at all; or
  • pale or yellowed skin, dark colored urine, fever, or unusual weakness.

Less serious side effects may include:

  • mild drowsiness, dizziness, or spinning sensation;
  • restlessness or excitability (especially in children);
  • sleep problems (insomnia), tired feeling;
  • numbness or tingly feeling;
  • increased sweating or urination;
  • blurred vision;
  • appetite changes;
  • dry mouth or nose, upset stomach; or
  • nausea, diarrhea, constipation.

This is not a complete list of side effects and others may occur.

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