Decon-A Side Effects

Generic name: brompheniramine / phenylephrine

Medically reviewed by Drugs.com. Last updated on May 21, 2022.

Note: This document contains side effect information about brompheniramine / phenylephrine. Some dosage forms listed on this page may not apply to the brand name Decon-A.

Applies to brompheniramine / phenylephrine: oral liquid, oral tablet.

Warning

Follow all directions on the label and package. Use exactly as directed.

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

Stop using this medicine and call your doctor at once if you have:

nervousness, dizziness, or sleeplessness;
chest pain, fast or uneven heart rate;
little or no urinating;
dangerously high blood pressure (severe headache, buzzing in your ears, anxiety, shortness of breath);
if your symptoms do not improve after 7 days of treatment, or if you have a fever; or
if new symptoms occur.

Less serious side effects may be more likely, and you may have none at all.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects.

For Healthcare Professionals

Applies to brompheniramine/phenylephrine: oral capsule extended release, oral elixir, oral liquid, oral suspension extended release, oral tablet, oral tablet chewable, oral tablet chewable extended release, oral tablet extended release.