Robitussin Allergy & Cough

Brompheniramine is an antihistamine that reduces the effects of natural chemical histamine in the body. Histamine can produce symptoms of sneezing, itching, watery eyes, and runny nose.

Dextromethorphan is a cough suppressant. It affects the signals in the brain that trigger cough reflex.

Pseudoephedrine is a decongestant that shrinks blood vessels in the nasal passages. Dilated blood vessels can cause nasal congestion (stuffy nose).

Brompheniramine, dextromethorphan, and pseudoephedrine is a combination medicine used to treat cough, runny or stuffy nose, sneezing, itching, and watery eyes caused by allergies, the common cold, or the flu.

This medicine will not treat a cough that is caused by smoking, asthma, or emphysema.

Brompheniramine, dextromethorphan, and pseudoephedrine may also be used for purposes not listed in this medication guide.

Since this medicine is taken when needed, you may not be on a dosing schedule. If you are taking the medication regularly, take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose.

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

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

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

• confusion, severe anxiety, hallucinations, tremors;

• weak or shallow breathing;

• a light-headed feeling, like you might pass out;

• fast or pounding heartbeats;

• painful or difficult urination, little or no urinating;

• pale skin, weakness, easy bruising or bleeding, fever, chills, body aches; or

• increased blood pressure--severe headache, buzzing in your ears, chest pain, shortness of breath, uneven heartbeats.

Common side effects may include:

• dizziness, drowsiness, headache;

• constipation, upset stomach, loss of appetite;

• blurred vision, double vision, dry eyes;

• sleep problems (insomnia); or

• dry mouth, nose, or throat.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:

• Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
• Trouble passing urine.
• A fast heartbeat.
• A heartbeat that does not feel normal.
• Very bad dizziness or passing out.
• Shortness of breath.
• Shakiness.
• Seizures.
• Blurred eyesight.