Font Size
A
A
A
1

Medications and Drugs

Brand Names: D-Tann CT, Dytan-CS

Generic Name: carbetapentane, diphenhydramine, and phenylephrine (Pronunciation: car bay tah PEN tane, die fen HIGH dra meen, and feh nill EH frin)

What is carbetapentane, diphenhydramine, and phenylephrine (D-Tann CT, Dytan-CS)?

Carbetapentane is a cough suppressant.

Diphenhydramine is an antihistamine. It blocks the effects of the naturally occurring chemical histamine in the body. Diphenhydramine prevents sneezing; itchy, watery eyes and nose; and other symptoms of allergies and hay fever.

Phenylephrine is a decongestant. It works by constricting (shrinking) blood vessels (veins and arteries) in the body. Constriction of blood vessels in the sinuses and nose decreases congestion.

Carbetapentane, diphenhydramine, and phenylephrine is used to treat cough and nasal congestion associated with allergies or the common cold.

Carbetapentane, diphenhydramine, and phenylephrine may also be used for purposes other than those listed in this medication guide.

What are the possible side effects of carbetapentane, diphenhydramine, and phenylephrine (D-Tann CT, Dytan-CS)?

Serious side effects are unlikely to occur. Stop taking carbetapentane, diphenhydramine, and phenylephrine and seek emergency medical attention if an allergic reaction (difficulty breathing; closing of the throat; swelling of the lips, tongue, or face; or hives) is experienced.

Other, less serious side effects may be more likely to occur. Continue to take carbetapentane, diphenhydramine, and phenylephrine and talk to your doctor or try another similar medication if you experience

  • dryness of the eyes, nose, or mouth;
  • drowsiness or dizziness;
  • blurred vision;
  • difficulty urinating; or
  • excitation in children.

Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome. You may report side effects to FDA at 1-800-FDA-1088.

What is the most important information I should know about carbetapentane, diphenhydramine, and phenylephrine (D-Tann CT, Dytan-CS)?

Use caution when driving, operating machinery, or performing other hazardous activities. Carbetapentane, diphenhydramine, and phenylephrine may cause dizziness or drowsiness. If you experience dizziness or drowsiness, avoid these activities.

Use alcohol cautiously. Alcohol may increase drowsiness and dizziness while taking carbetapentane, diphenhydramine, and phenylephrine.



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.

Pill Identifier Tool

Need help identifying pills and medications?
Use the pill finder tool on RxList.