Alahist D

Generic name:pheniramine and phenylephrine [ fen-IR-a-meen-and-FEN-il-EFF-rin ]
Drug class:Upper respiratory combinations

Medically reviewed by Drugs.com on Jun 14, 2021. Written by Cerner Multum.

What is Alahist D?

Alahist D is a combination antihistamine and decongestant medicine that is used to treat runny or stuffy nose, sneezing, itching, watery eyes, and sinus congestion caused by allergies, the common cold, or the flu.

Alahist D may also be used for purposes not listed in this medication guide.

Warnings

Do not use the medicine to make a child sleepy. Misuse of Alahist D may cause death in very young children.

Before taking this medicine

You should not use this medicine if you are allergic to pheniramine or phenylephrine.

Do not use Alahist D if you have used an MAO inhibitor in the past 14 days. A dangerous drug interaction could occur. MAO inhibitors include isocarboxazid, linezolid, methylene blue injection, phenelzine, tranylcypromine, and others.

Ask a doctor or pharmacist if this medicine is safe to use if you have:

• asthma or other breathing disorder such as emphysema or chronic bronchitis;

• high blood pressure, heart disease;

• an enlarged prostate and urination problems;

• glaucoma;

• diabetes; or

• a thyroid disorder.

Ask a doctor before using this medicine if you are pregnant or breastfeeding.

Do not give this medicine to a child younger than 6 years old without medical advice.

How should I take Alahist D?

Use exactly as directed on the label, or as prescribed by your doctor. Cold or allergy medicine is only for short-term use until your symptoms clear up.

Always follow directions on the medicine label about giving cough or cold medicine to a child. Do not use the medicine only to make a child sleepy. Death can occur from the misuse of...