Tessalon Perles Dosage
For adults and children over 10 years of age, the standard dose is one 100 mg, 150 mg, or 200 mg capsule three times daily as needed for cough, with a maximum daily dose of 600 mg in three divided doses. 1
Dosing Specifics
The FDA-approved dosing is straightforward 1:
- Standard dose: 100-200 mg three times daily
- Maximum daily dose: 600 mg (divided into three doses)
- Maximum single dose: 200 mg
- Age restriction: Only approved for children ≥10 years old
Critical Safety Considerations
Capsules must be swallowed whole—never broken, chewed, dissolved, cut, or crushed. 1 This is not merely a preference but a critical safety requirement because:
- Release of benzonatate in the mouth produces temporary local anesthesia of oral mucosa and can cause choking 1
- If numbness or tingling of the tongue, mouth, throat, or face occurs, patients must refrain from eating or drinking until numbness resolves 1
Pediatric Contraindication
Benzonatate is contraindicated in children under 10 years of age. 1 This restriction exists because:
- Safety and effectiveness have not been established in children below age 10 1
- Accidental ingestion has resulted in death in young children 1
- Signs of overdose can appear within 15-20 minutes, with death reported within one hour of ingestion 1
- Among 2,718 unintentional exposures in children 0-5 years old reported to poison control centers, the risk of serious adverse effects remains present 2
Common Pitfalls to Avoid
Never prescribe for children under 10 years: Despite increasing pediatric prescriptions noted in surveillance data, this remains off-label and dangerous 2
Emphasize storage safety: Keep completely out of reach of children, as unintentional pediatric exposures (particularly ages 0-5) are increasing 2
Do not double dose: If a dose is missed, skip it and take the next scheduled dose—never take two doses at once 1
Monitor for intentional misuse: There is a rising pattern of intentional exposures in adolescents ages 10-16, with 61% of misuse/abuse cases occurring in this age group 2
Duration of Action
Benzonatate begins working within 15-20 minutes, with effects lasting 3-8 hours 1, which supports the three-times-daily dosing schedule.