Skip to Content

BetaVent Liquid

Generic Name: carbetapentane/guaifenesin (kar-bay-ta-PEN-tane/gwye-FEN-e-sin)
Brand Name: Examples include Oratuss and Tusso-ZR

BetaVent Liquid is used for:

Relieving unproductive cough and reducing mucus in the chest due to colds, flu, or hay fever. It may also be used for other conditions as determined by your doctor.

BetaVent Liquid is a cough suppressant and expectorant combination. The cough suppressant works in the brain to help decrease the cough reflex. The expectorant works by thinning mucus (phlegm) in the lungs, making it less sticky and easier to cough up. This makes coughs more productive.

Do NOT use BetaVent Liquid if:

  • you are allergic to any ingredient in BetaVent Liquid
  • you are taking or have taken a monoamine oxidase inhibitor (MAOI) (eg, phenelzine) with the last 14 days

Contact your doctor or health care provider right away if any of these apply to you.

Before using BetaVent Liquid:

Some medical conditions may interact with BetaVent Liquid. Tell your doctor or pharmacist if you have any medical conditions, especially if any of the following apply to you:

  • if you are pregnant, planning to become pregnant, or are breast-feeding
  • if you are taking any prescription or nonprescription medicine, herbal preparation, or dietary supplement
  • if you have allergies to medicines, foods, or other substances
  • if you have chronic cough due to smoking, asthma, chronic bronchitis, or emphysema, or if your cough produces large amounts of mucus
  • if you have a history of heart problems, high blood pressure, prostate problems, an overactive thyroid, diabetes, or glaucoma

Some MEDICINES MAY INTERACT with BetaVent Liquid. Tell your health care provider if you are taking any other medicines, especially any of the following:

  • MAOIs (eg, phenelzine) because they may increase the risk of BetaVent Liquid's side effects

This may not be a complete list of all interactions that may occur. Ask your health care provider if BetaVent Liquid may interact with other medicines that you take. Check with your health care provider before you start, stop, or change the dose of any medicine.

How to use BetaVent Liquid:

Use BetaVent Liquid as directed by your doctor. Check the label on the medicine for exact dosing instructions.

  • Take BetaVent Liquid by mouth with or without food.
  • Drinking extra fluids while you are taking BetaVent Liquid is recommended. Check with your doctor for instructions.
  • Use a measuring device marked for medicine dosing. Ask your pharmacist for help if you are unsure of how to measure your dose.
  • If you miss a dose of BetaVent Liquid and you are taking it regularly, take it as soon as possible. If it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not take 2 doses at once.

Ask your health care provider any questions you may have about how to use BetaVent Liquid.

Important safety information:

  • BetaVent Liquid may cause drowsiness. These effects may be worse if you take it with alcohol or certain medicines. Use BetaVent Liquid with caution. Do not drive or perform other possibly unsafe tasks until you know how you react to it.
  • Do not drink alcohol or use medicines that may cause drowsiness (eg, sleep aids, muscle relaxers) while you are using BetaVent Liquid; it may add to their effects. Ask your pharmacist if you have questions about which medicines may cause drowsiness.
  • Do not use BetaVent Liquid for a cough with a lot of mucous. Do not use it for a long-term cough (eg, caused by asthma, emphysema, smoking). However, you may use it for these conditions if your doctor tells you to.
  • If cough persists for more than 1 week or is accompanied by a fever, contact your health care provider. A persistent cough could be a sign of a serious condition.
  • BetaVent Liquid may interfere with certain lab tests. Be sure your doctor and lab personnel know you are taking BetaVent Liquid.
  • Caution is advised when using BetaVent Liquid in CHILDREN; they may be more sensitive to its effects.
  • PREGNANCY and BREAST-FEEDING: If you become pregnant, contact your doctor. You will need to discuss the benefits and risks of using BetaVent Liquid while you are pregnant. It is not known if this medicine is found in breast milk. If you are or will be breast-feeding while you use BetaVent Liquid, check with your doctor. Discuss any possible risks to your baby.

Possible side effects of BetaVent Liquid:

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome:

Drowsiness; dry mouth, nose, or throat; upset stomach.

Seek medical attention right away if any of these SEVERE side effects occur:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue).

This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.

If OVERDOSE is suspected:

Contact 1-800-222-1222 (the American Association of Poison Control Centers), your local poison control center, or emergency room immediately. Symptoms may include restlessness; seizures; severe agitation.

Proper storage of BetaVent Liquid:

Store BetaVent Liquid at room temperature, between 59 and 86 degrees F (15 and 30 degrees C). Store away from heat, moisture, and light. Do not store in the bathroom. Keep BetaVent Liquid out of the reach of children and away from pets.

General information:

  • If you have any questions about BetaVent Liquid, please talk with your doctor, pharmacist, or other health care provider.
  • BetaVent Liquid is to be used only by the patient for whom it is prescribed. Do not share it with other people.
  • If your symptoms do not improve or if they become worse, check with your doctor.
  • Check with your pharmacist about how to dispose of unused medicine.

This information should not be used to decide whether or not to take BetaVent Liquid or any other medicine. Only your health care provider has the knowledge and training to decide which medicines are right for you. This information does not endorse any medicine as safe, effective, or approved for treating any patient or health condition. This is only a brief summary of general information about BetaVent Liquid. It does NOT include all information about the possible uses, directions, warnings, precautions, interactions, adverse effects, or risks that may apply to BetaVent Liquid. This information is not specific medical advice and does not replace information you receive from your health care provider. You must talk with your healthcare provider for complete information about the risks and benefits of using BetaVent Liquid.

Review Date: August 8, 2016

Disclaimer: This information should not be used to decide whether or not to take this medicine or any other medicine. Only your health care provider has the knowledge and training to decide which medicines are right for you. This information does not endorse any medicine as safe, effective, or approved for treating any patient or health condition. This is only a brief summary of general information about this medicine. It does NOT include all information about the possible uses, directions, warnings, precautions, interactions, adverse effects, or risks that may apply to this medicine. This information is not specific medical advice and does not replace information you receive from your health care provider. You must talk with your healthcare provider for complete information about the risks and benefits of using this medicine.

More about BetaVent (carbetapentane / guaifenesin)

Consumer resources

Related treatment guides

Hide