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General Information
Brand names and manufacturer
Type: OTC/Prescription/schedule

What should I know before taking this drug
Dosage information
Adverse reactions
Additional information if any

Type: OTC/Prescription/schedule

Terfenadine is a prescription drug available from your pharmacy store only with the prescription of a qualified medical practitioner.


Terfenadine Is pronounced as: ter FEN a deen 

What is terfenadine?

Terfenadine is antihistamin drug. 

Common uses of terfenadine

Terfenadine is used in the treatment of allergic reaction like runny nose, sneezing, itchy eyes.

Along with other drugs it is used in the treatment of bronchial constriction and urticaria 

How to use terfenadine

Take terfenadine exactly as prescribed by your doctor. If do not understand these instructions ask your pharmacist, nurse or doctor to explain them to you. 

Do not take the medication in larger amounts or for longer duration than required.
Take terfenadine tablet with a glass of water. 

What should I discuss with my health care provider before taking terfenadine?

Inform your doctor or pharmacist if you are suffering from liver or kidney disease or asthma or irregular heart beat. 

When not to take terfenadine

Do not take terfenadine if you are taking antifungals (keto conazol, itraconazole) or antibiotics like erythromycin or antihistamine like cimetidine 

What are the precautions I should follow for terfenadine?

Children: Terfenadine should not be used in children less than 3 months

Old people: Caution is advised for usage in older people.
Pregnant woman: Terfenadine belongs to FDA pregnancy category C. This means that terfenadine may harm an unborn baby if used during pregnancy but potential benefit may warrant use of the drug in pregnant woman despite potential risks. Always inform your doctor if you are pregnant or are planning for conception.
Lactating women:  It is not known whether terfenadine passes into breast milk or if it could harm the baby. Do not take terfenadine with out first talking to doctor if you are breast feeding a baby.
Use alcohol cautiously. 

What are the dosage forms terfenadine is available in the market

Terfenadine is available in the form of tablets and syrup. Use the tables or syrup as advised by your pharmacist. 

Doses for terfenadine

Use as directed by your physician, your physician prescribes depending on the severity of disease. 

Use the complete course of medication as prescribed by your physician even though you feel better after one or two days of usage of medication. 

What about if I missed the dose of terfenadine

If it is almost the time of the next dose, skip the missed dose and resume your usual dosing schedule. Do not take two doses at same time to cover up the missed dose. 

What should I do if I over dosage terfenadine

In case of overdose contact your nearest poison control centre or emergency medical centre for immediate care by physician.  

What are the common side effects of terfenadine?

The following are the side effects for terfenadine

  • Nausea, vomiting
  • Dizziness, headache
  • Dry mouth

When to consult the health expert about the side effects of terfenadine

If you notice any of the side effects stop using the medication and consult your physician immediately.

allergic reactions like skin rash, itching, breathing problems, chest tight ness, swelling of the face, lips or

Convulsions or
Irregular heart beat,  

How do I store terfenadine?

Store terfenadine at room temp (15 – 30 degrees C). Avoid excessive heat, moisture or direct sunlight, never store in the bathroom.

Keep it out of reach of children. Make sure that any leftover portion is disposed off safely. 

What is the most important information I should know about terfenadine

Terfenadine cause dizziness it is advised not to perform skilled activities like driving, operating machine.

Written by: Healthplus24 team
Date: Apr9th,09 

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