Robitussin Ac (Guaifenesin and Codeine) Drug Information: Side Effects and Drug Interactions

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May 27, 2012

Robitussin Ac

Acute Bronchitis »

What is acute bronchitis?

Air is pulled into the lungs when we breathe, initially passing through the mouth, nose, and larynx (voicebox) into the trachea and continues en route to each lung via either the right or left bronchi (the bronchial tree - bronchi, bronchioles, and alveoli). Bronchi are formed as the lower part of the trachea divides into two tubes that lead to the lungs. As the bronchi get farther away from the trachea, each bronchial tube divides and gets smaller (resembling an inverted tree) to provide the air to lung tissue so that it can transfer oxygen to the blood stream and remove carbon dioxide (the waste product of metabolism).

Bronchitis describes inflammation of the bronchial tubes (inflammation = itis). The inflammation causes swelling of the lining of these breathing tubes, narrowing the tubes and promoting secretion of inflammatory fluid.

Acute bronchitis describes the inflammation of the bronchi u...

Read the Acute Bronchitis article »

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SIDE EFFECTS

No information provided.

DRUG INTERACTIONS

Caution should be used when taking this product with sedatives, tranquilizers and drugs used for depression, especially monoamine oxidase inhibitors (MAOIs). These combinations may cause greater sedation (drowsiness) than is caused by the products used alone.

Directions

Take orally as stated below or use as directed by a doctor.

Adults and children 12 years of age and over: 2 teaspoonfuls every 4 hours, not to exceed 12 teaspoonfuls in a 24-hour period;

children 6 to under 12 years: 1 teaspoonful every 4 hours, not to exceed 6 teaspoonfuls in a 24-hour period;

children under 6 years: consult a doctor.

A special measuring device should be used to give an accurate dose of this product to children under 6 years of age. Giving a higher dose than recommended by a doctor could result in serious side effects for a child. Use of codeine-containing preparations is not recommended for children under 2 years of age. Do not exceed recommended dosage.

Last reviewed on RxList: 12/8/2004
This monograph has been modified to include the generic and brand name in many instances.