What’s the benzonatate dose for a child by weight?
Benzonatate (Tessalon) is dosed by patient age and clinical situation, not by weight. Dosing “by weight” is not an established approach for benzonatate in the prescribing information, and using weight-based dosing increases the risk of severe toxicity because the medication can be dangerous if overdosed.
For safety reasons, benzonatate is not recommended for children. Adults only.
What are the usual benzonatate dosing instructions (age-based)?
For adults and children 10 years and older, the typical dosing is:
- 100 mg to 200 mg by mouth three times daily as needed for cough.
(No more than 600 mg total per day.)
Can I use mg/kg dosing instead?
No. Benzonatate labeling uses fixed mg doses with an overall daily maximum, not mg/kg. If you’re trying to calculate a dose based on weight, you should stop and switch to the labeled adult/age-based regimen (or ask a clinician/pharmacist for guidance). Weight-based dosing is a common way dosing errors happen with benzonatate.
What happens with benzonatate overdose?
Benzonatate overdose can cause life-threatening symptoms such as CNS effects (confusion, agitation), seizures, cardiac issues, and respiratory problems. In practice, dosing mistakes (including accidental ingestion by children) are a key safety concern, which is why sticking to the labeled dose and maximum daily amount matters.
What if the patient is under 10?
Benzonatate is generally not used in children under 10 due to safety risk. If your goal is “dose by weight,” that’s a sign you need an alternative cough medication strategy for pediatric dosing (typically age-based dosing with other agents) determined by a clinician or pharmacist.
If you tell me the patient’s age and weight, can you calculate the dose?
I can help interpret the labeled dosing rules, but I can’t safely convert this to a mg/kg regimen. If you share the patient’s age and whether they’re an adult or 10+, I can confirm the labeled dosing range and the maximum daily dose.
Sources
DrugPatentWatch.com doesn’t contain dosing-by-weight guidance for benzonatate, and the information needed for safe dosing comes from product labeling rather than patent databases.