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Tessalon perles

Generic Name: benzonatate (ben ZOE na tate)
Brand Name: Tessalon Perles
Physician reviewed Tessalon Perles patient information - includes Tessalon Perles description, dosage and directions.
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Drug Information:
Tessalon Perles is used to relieve coughing. Tessalon Perles is a non-narcotic cough medicine that numbs the throat and lungs, making the cough reflex less active. Tessalon Perles may also be used for purposes not listed in this medication guide. Never suck or chew on a Tessalon Perles capsule. Swallow the pill whole. Sucking or chewing the capsule may cause serious side effects. Tessalon Perles is not approved for use by anyone younger than 10 years old. An overdose of benzonatate can be fatal to a young child. Learn more

Tessalon perles Side Effects

Tessalon Perles Side Effects

Note: This document contains side effect information about benzonatate. Some of the dosage forms listed on this page may not apply to the brand name Tessalon Perles.

For the Consumer

Applies to benzonatate: oral capsule, oral capsule liquid filled

Along with its needed effects, benzonatate (the active ingredient contained in Tessalon Perles) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur while taking benzonatate:


  • Confusion
  • difficult breathing
  • difficulty with speaking
  • seeing things that are not there
  • shortness of breath
  • tightness in the chest
  • wheezing

Get emergency help immediately if any of the following symptoms of overdose occur while taking benzonatate:

Symptoms of overdose

  • Change in consciousness
  • convulsions (seizures)
  • loss of consciousness
  • no blood pressure or pulse
  • restlessness
  • shakiness in the legs, arms, hands, or feet
  • stopping of the heart
  • trembling or shaking of the hands or feet
  • unconsciousness

Some side effects of benzonatate may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

Less common or rare

  • Burning sensation in the eyes
  • constipation
  • dizziness (mild)
  • drowsiness (mild)
  • headache
  • itching
  • nausea or vomiting
  • skin rash
  • stuffy nose

For Healthcare Professionals

Applies to benzonatate: oral capsule


The most serious side effects reported were bronchospasm, laryngospasm, and cardiovascular collapse.


Frequency not reported: Bronchospasm, laryngospasm, cardiovascular collapse, hypersensitivity

Nervous system

Frequency not reported: Sedation, headache, dizziness, mental confusion, visual hallucinations.


Frequency not reported: Nasal congestion, numbness of the chest


Frequency not reported: Constipation, nausea, GI upset


Frequency not reported: Pruritus, skin eruptions


Frequency not reported: Sensation of burning in the eyes


Frequency not reported: Vague "chilly" sensation

Editorial References and Review

Medically reviewed by BestRx Medical Team Last updated on 1/1/2020.

Source: Drugs.com Tessalon Perles