What is Cyproheptadine Hcl: Uses, Warnings & Interactions

Updated Jan. 12, 2021  •  Published Dec. 30, 2020

Cyproheptadine Hcl overview

Generic Names:

  • Cyproheptadine Hcl

Uses:

  • Treats hay fever, cold, and allergy symptoms such as runny nose, watery eyes, hives, and swelling. Belongs to a class of drugs called antihistamines.

Therapeutic Classes:

  • Respiratory Agent

Forms:

  • Tablet, Liquid

How it’s taken:

  • By mouth

What is Cyproheptadine Hcl used for?

Cyproheptadine is a medication used to treat allergy symptoms such as runny nose, itchy eyes, sneezing, hives, and itching. Cyproheptadine belongs to a class of medications called antihistamines. Cyproheptadine is a generic drug also sold under the brand name Periactin. Cyproheptadine has been available for years. In the treatment of allergy symptoms, cyproheptadine use is common.

What form(s) does Cyproheptadine Hcl come in

  • Tablet

  • Liquid

What are common Cyproheptadine Hcl doses?

  • Tablet 4mg

  • Tablet 4MG

  • Ml Of Syrup 473ml of 2mg/5ml

Common Cyproheptadine Hcl prescriptions

  • Cyproheptadine HCl
    473ml of 2mg/5ml bottle

  • Cyproheptadine HCl
    473ml of 2mg/5ml ml of syrup

  • Cyproheptadine HCl
    4mg tablet

How to take Cyproheptadine Hcl

  • Your doctor will tell you how much medicine to take and how often.

  • You may take your medicine with food to avoid stomach upset.

  • Your doctor will tell you how much medicine to take and how often.

  • You may take your medicine with food to avoid stomach upset.

  • You should not use two doses at one time.

What to do if you miss a dose of Cyproheptadine Hcl

  • Take your medicine as soon as you remember that you have missed your dose.

  • If it is nearly time for your next dose, wait until then to take the medicine and skip the missed dose.

  • You should not use two doses at one time.

Cyproheptadine Hcl contraindications

  • You should not use this medicine if you have ever had an allergic reaction to cyproheptadine or MAO inhibitors such as Marplan®, Nardil®, or Parnate®. Do not give this medicine to a newborn baby. You should not take cyproheptadine if you are breastfeeding, or have glaucoma, stomach ulcers, bladder or intestine problems, or an enlarged prostate.

Cyproheptadine Hcl warnings

  • If you are pregnant or breastfeeding, talk to your doctor before taking this medicine.

  • Let your doctor know if you have ever had asthma, heart disease, overactive thyroid, or high blood pressure.

  • Tell your doctor if you become pregnant while taking this medicine.

  • This medicine might make you drowsy. Be careful when driving or operating dangerous machinery.

  • Seizures (convulsions)

Cyproheptadine Hcl interactions

  • Avoid drinking alcohol while taking cyproheptadine.

  • Avoid taking other medicines that may make you sleepy, such as other cold or allergy medicines, sleeping pills, sedatives, or tranquilizers.

  • Cyproheptadine should not be taken if you are also taking a monoamine oxidase (MAO) inhibitor such as Nardil®, Marplan®, or Parnate®.

  • This medicine might make you drowsy. Be careful when driving or operating dangerous machinery.

Cyproheptadine Hcl side effects

Serious Side Effects

  • Skin rash, hives, or itching

  • Irregular heartbeat

  • Hallucinations

  • Trouble breathing

  • Seizures (convulsions)

  • Dry mouth, nose, or throat

  • Stomach upset

  • Urinating more often

  • Headache

Less Serious Side Effects

  • Headache

  • Dry mouth, nose, or throat

  • Ringing or pressure inside ear

  • Dizziness

  • Urinating more often

  • Stomach upset

  • Trouble sleeping

  • Drowsiness

  • Restlessness