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carbetapentane and guaifenesin (cont.)

What should I discuss with my health care provider before taking carbetapentane and guaifenesin?

Do not use a cough or cold medicine if you have used an MAO inhibitor such as furazolidone (Furoxone), isocarboxazid (Marplan), phenelzine (Nardil), rasagiline (Azilect), selegiline (Eldepryl, Emsam, Zelapar), or tranylcypromine (Parnate) in the last 14 days. A dangerous drug interaction could occur, leading to serious side effects.

You should not use this medication if you are allergic to carbetapentane or guaifenesin.

To make sure you can safely take carbetapentane and guaifenesin, tell your doctor if you have any of these other conditions:

  • asthma, emphysema, or other breathing problems;
  • heart disease or high blood pressure;
  • glaucoma;
  • diabetes;
  • an enlarged prostate or urination problems; or
  • overactive thyroid.

FDA pregnancy category C. It is not known whether carbetapentane and guaifenesin will harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant while using this medication.

This medication can pass into breast milk and may harm a nursing baby. Do not use this medication without telling your doctor if you are breast-feeding a baby.

Artificially sweetened liquid cough or cold medicine may contain phenylalanine. If you have phenylketonuria (PKU), check the medication label to see if the product contains phenylalanine.

How should I take carbetapentane and guaifenesin?

Take exactly as prescribed by your doctor. Do not take in larger or smaller amounts or for longer than recommended. Follow the directions on your prescription label. Cough or cold medicine is usually taken only for a short time until your symptoms clear up.

Do not give this medication to a child younger than 4 years old. Always ask a doctor before giving a cough or cold medicine to a child. Death can occur from the misuse of cough and cold medicines in very young children.

Take this medication with a full glass of water. Drink extra fluids to help loosen the congestion and lubricate your throat while you are taking this medication.

You may take carbetapentane and guaifenesin with or without food. Taking it with food or milk may decrease stomach upset.

Measure liquid medicine with a special dose measuring spoon or medicine cup, not with a regular table spoon. If you do not have a dose measuring device, ask your pharmacist for one.

Do not crush, chew, or break an extended-release tablet. Swallow it whole. Breaking the pill may cause too much of the drug to be released at one time.

Do not take carbetapentane and guaifenesin for longer than 7 days in a row. Talk with your doctor if your symptoms do not improve after 7 days of treatment, or if you have a fever with a headache or skin rash.

This medication can cause unusual results with certain medical tests. Tell any doctor who treats you if you have taken a cough medicine within the past few days.

If you need surgery, tell the surgeon ahead of time if you have taken a cough medicine within the past few days.

Store at room temperature away from moisture, heat, and light. Do not allow liquid medicine to freeze.

Report Problems to the Food and Drug Administration

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

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