Benzonatate 200 mg capsule side effects?

Here’s a quick overview of side effects associated with benzonatate (often in 200 mg capsules, brand name Tessalon Perles). This isn’t medical advice—talk with a clinician if you have concerns, especially if you have other health conditions or take other medicines.

Common (most people)
- Drowsiness or sleepiness
- Dizziness
- Headache
- Nausea or upset stomach
- Constipation
- Nasal congestion or sore throat
- Mild numbness in the mouth or throat (more likely if capsules are chewed or dissolved in the mouth)

Less common but possible
- Dry mouth
- Stomach upset
- Rash or itching

Serious but rare (seek urgent medical attention)
- Allergic reactions: swelling of face/t lips/ tongue, severe itching or rash, trouble breathing or swallowing
- Severe numbness of mouth/tongue that doesn’t go away, or persistent choking or gagging after contact with mouth
- Signs of overdose or severe sedation (unusual sleepiness, confusion, fainting)

Important safety notes
- Do not chew, dissolve, or crush the capsules. Swallow whole to keep the medicine in the stomach where it’s supposed to act.
- If mouth numbness occurs after taking a capsule, this is usually temporary. If it’s persistent or uncomfortable, contact a healthcare professional.
- Not recommended for children under 10 years old. There have been cases where accidental ingestion by children led to serious illness or death. Keep out of reach of children.
- Avoid alcohol or other sedatives that can enhance drowsiness while taking this medication.
- If you develop a rash, swelling, trouble breathing, or other signs of an allergic reaction, seek immediate medical care.

If you want, tell me any other medicines you’re taking, your health conditions, or the exact side effects you’re concerned about, and I can tailor this info.