Brompheniramine Side Effects

Some side effects of brompheniramine may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA.

For the Consumer

Applies to brompheniramine: oral liquid, oral tablet extended release

Get emergency medical help if you have any of these signs of an allergic reaction while taking brompheniramine: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Stop using brompheniramine and call your doctor at once if you have a serious side effect such as:

• fast or uneven heart rate;

• mood changes;

• tremor, seizure (convulsions);

• easy bruising or bleeding, unusual weakness;

• feeling short of breath; or

• urinating less than usual or not at all.

Less serious side effects of brompheniramine may include:

• dizziness, drowsiness;

• dry mouth, nose, or throat;

• constipation;

• blurred vision; or

• feeling nervous or restless.

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: compounding powder, injectable solution, oral capsule, oral capsule extended release, oral liquid, oral suspension extended release, oral tablet, oral tablet chewable extended release, oral tablet extended release

Nervous system

Nervous system side effects have included central nervous system (CNS) depression, resulting in drowsiness and sedation in nearly 50% of patients treated. This effect has often been transient and ceased with continued use. Motor skills have be impaired and patients should be advised to avoid tasks which require attention. Patients should also avoid concomitant use with alcohol and other sedative-hypnotic drugs. Dyskinesias have rarely been reported following chronic use of brompheniramine.

A few cases of dyskinesias and tremors, often of the face, have been reported in patients whose chronic use of brompheniramine extended over a period of up to 10 years. Some of these cases were only partially relieved by discontinuation of the drug. Haloperidol was successful in relieving symptoms in these patients. Spasmodic torticollis has been reported in a child given brompheniramine over an eight month period.

Gastrointestinal

Gastrointestinal side effects have include nausea, dry mouth and constipation.

Cardiovascular

Cardiovascular effects of brompheniramine have included hypotension, tachycardia, and palpitations.

Ocular

Ocular side effects have included blurred vision, diplopia, and dry eyes due to anticholinergic effects.

Genitourinary

Genitourinary side effects have included dysuria, urinary hesitancy, decrease in urine flow, and, in rare cases, acute urinary retention.

Hematologic

Hematologic side effects have included rare cases of hemolytic anemia, thrombocytopenia, and agranulocytosis.

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