Phena-S

Name: Phena-S

Phena-S Drug Class

Phena-S is part of the drug classes:

  • Substituted alkylamines

  • Adrenergic and dopaminergic agents

  • Sympathomimetics

  • Sympathomimetics excl. antiglaucoma preparations

  • Sympathomimetics used as decongestants

  • Sympathomimetics, combinations excl. corticosteroids

  • Sympathomimetics, plain

  • Antihistamines for topical use

  • Substituted ethylene diamines

What is chlorpheniramine, phenylephrine, and pyrilamine?

Chlorpheniramine and pyrilamine are antihistamines that reduce the effects of natural chemical histamine in the body. Histamine can produce symptoms of sneezing, itching, watery eyes, and runny nose.

Phenylephrine is a decongestant that shrinks blood vessels in the nasal passages. Dilated blood vessels can cause nasal congestion (stuffy nose).

Chlorpheniramine, phenylephrine, and pyrilamine is a combination medicine used to treat runny or stuffy nose, sneezing, itching, watery eyes, and sinus congestion caused by allergies, the common cold, or the flu.

Chlorpheniramine, phenylephrine, and pyrilamine may also be used for purposes not listed in this medication guide.

How should I take chlorpheniramine, phenylephrine, and pyrilamine?

Use exactly as directed on the label, or as prescribed by your doctor. Do not use in larger or smaller amounts or for longer than recommended. Cough or cold medicine is usually taken only for a short time until your symptoms clear up.

Do not give this medication to a child younger than 6 years old. Always ask a doctor before giving a cough or cold medicine to a child. Death can occur from the misuse of cough and cold medicines in very young children.

You should not use antihistamine medication to make a child sleepy.

Do not crush, chew, or break an extended-release tablet. Swallow it whole.

Measure liquid medicine with the dosing syringe provided, or with a special dose-measuring spoon or medicine cup. If you do not have a dose-measuring device, ask your pharmacist for one.

Shake the oral suspension (liquid) well just before you measure a dose.

Store at room temperature away from moisture, heat, and light. Do not allow liquid medicine to freeze.

Call your doctor if your symptoms do not improve after 7 days of treatment, or if you have a fever with a headache, cough, or skin rash.

What happens if I miss a dose?

Take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose.

What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

Overdose symptoms may include dry mouth, extreme drowsiness, confusion, ringing in your ears, tremors, seizure, dilated pupils, vomiting, and loss of consciousness.

What other drugs will affect chlorpheniramine, phenylephrine, and pyrilamine?

Ask a doctor or pharmacist before using this medicine if you are also using any other drugs, including prescription and over-the-counter medicines, vitamins, and herbal products. Some medicines can cause unwanted or dangerous effects when used together. Not all possible interactions are listed in this medication guide.

Taking this medicine with other drugs that make you sleepy or slow your breathing can worsen these effects. Ask your doctor before taking chlorpheniramine, phenylephrine, and pyrilamine with a sleeping pill, narcotic pain medicine, muscle relaxer, or medicine for anxiety, depression, or seizures.

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