Brompheniramine is approved by the U.S. Food and Drug Administration (FDA) and is safe and effective when used according to the Drug Facts label.

Before taking brompheniramine:

• tell your doctor and pharmacist if you are allergic to brompheniramine, any other medications, or any of the ingredients in brompheniramine preparations. Check the package label for a list of the ingredients.
• tell your doctor and pharmacist what prescription and nonprescription medications, vitamins, nutritional supplements, and herbal products you are taking or plan to take. Be sure to mention any of the following: medications for colds, hay fever, or allergies; medications for depression or seizures; monoamine oxidase (MAO) inhibitors such as isocarboxazid (Marplan), phenelzine (Nardil), selegiline (Eldepryl, Emsam, Zelapar), and tranylcypromine (Parnate); muscle relaxants; narcotic medications for pain; sedatives; sleeping pills; and tranquilizers.
• tell your doctor if you have or have ever had asthma, emphysema, chronic bronchitis, or other breathing problems; glaucoma (a condition in which increased pressure in the eye can lead to gradual loss of vision); ulcers; difficulty urinating (due to an enlarged prostate gland); heart disease; high blood pressure; seizures; or an overactive thyroid gland.
• tell your doctor if you are pregnant, plan to become pregnant, or are breast-feeding. If you become pregnant while taking brompheniramine, call your doctor.
• if you are having surgery, including dental surgery, tell the doctor or dentist that you are taking brompheniramine.
• you should know that this medication may make you drowsy. Do not drive a car or operate machinery until you know how this medication affects you.
• talk to your doctor about the safe use of alcohol while you are taking brompheniramine. Alcohol can make the side effects of brompheniramine worse.
• talk to your doctor about the risks and benefits of taking brompheniramine if you are 65 years of age or older. Older adults should not usually take brompheniramine because it is not as safe or effective as other medications that can be used to treat the same condition.

Brompheniramine may cause side effects.

Talk with a healthcare provider if any of the following symptoms becomes severe or does not go away:

• drowsiness
• dry mouth, nose, and throat
• nausea
• headache
• chest congestion

Some side effects can be serious. If you experience any of these symptoms, stop using brompheniramine and call your doctor:

• vision problems
• difficulty urinating

If you experience a serious side effect, you or your doctor may send a report to the Food and Drug Administration's (FDA) MedWatch Adverse Event Reporting program online or by phone (1-800-332-1088). Please note that brompheniramine may cause other side effects not listed. Talk with a healthcare provider if you experience any unusual problems while taking this medication.