Skip to Content

Tustan 12S Side Effects

Generic Name: carbetapentane / chlorpheniramine

Note: This document contains side effect information about carbetapentane / chlorpheniramine. Some of the dosage forms listed on this page may not apply to the brand name Tustan 12S.

Applies to carbetapentane / chlorpheniramine: oral suspension, oral tablet

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

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

  • fast, pounding, or uneven heartbeat;

  • severe headache, hallucinations, seizure (convulsions);

  • severe dizziness or drowsiness;

  • vision problems;

  • little or no urinating;

  • tremors, severe restlessness; or

  • seizures (convulsions).

Common side effects may include:

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects.

Some side effects of Tustan 12S may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA.

More about Tustan 12S (carbetapentane / chlorpheniramine)

Consumer resources

Other brands: C-Tanna 12, Tannic-12 S

Related treatment guides

Disclaimer: Every effort has been made to ensure that the information provided is accurate, up-to-date and complete, but no guarantee is made to that effect. In addition, the drug information contained herein may be time sensitive and should not be utilized as a reference resource beyond the date hereof. This material does not endorse drugs, diagnose patients, or recommend therapy. This information is a reference resource designed as supplement to, and not a substitute for, the expertise, skill , knowledge, and judgement of healthcare practitioners in patient care. The absence of a warning for a given drug or combination thereof in no way should be construed to indicate safety, effectiveness, or appropriateness for any given patient. does not assume any responsibility for any aspect of healthcare administered with the aid of materials provided. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the substances you are taking, check with your doctor, nurse, or pharmacist.