Tessalon Perles (Generic Benzonatate 100Mg): Complete Medication Guide
Key Takeaways
Benzonatate is a numbing medicine that stops coughs by calming the cough reflex in your lungs and throat.
It comes as small gel capsules (perles) that you swallow whole, never chewed or dissolved.
Common side effects are mild and include dizziness, headache, and drowsiness.
It works quickly—often within 15 to 20 minutes—and lasts for 3 to 8 hours.
Always discuss cough remedies with your doctor if you're pregnant, breastfeeding, or taking other medications.
Tessalon Perles (Generic Benzonatate 100Mg) Overview
Benzonatate is a non-narcotic cough suppressant that belongs to a class of medicines called local anesthetics. Unlike cough medicines that work in your brain, benzonatate numbs the nerve endings in your lungs, throat, and airways that trigger the cough reflex. This makes it an excellent choice for people with dry or persistent coughs who want relief without the drowsiness or addiction risks of narcotic cough syrups.
The generic version of Tessalon Perles is just as effective as the brand name. Generic vs Brand Name Drugs contain the same active ingredient and must meet the same FDA safety and quality standards. If cost is a concern, choosing a cost-effective alternative to brand-name drugs like generic benzonatate can help you save money while getting the same relief.
Benzonatate is typically prescribed for coughs caused by colds, flu, or bronchitis. It's not meant to treat coughs caused by smoking or coughs due to underlying lung disease—talk to your doctor about whether benzonatate is right for your cough.
Side Effects
Benzonatate is generally well-tolerated, and most people experience mild or no side effects. The perles dissolve slowly in your stomach, which helps keep side effects minimal.
Common Side Effects
Dizziness or lightheadedness — You may feel a bit unsteady or off-balance, especially when standing up quickly. Sit or lie down if this happens.
Headache — A mild to moderate headache may occur; over-the-counter pain relief and rest often help.
Drowsiness or fatigue — Some people feel more tired than usual. Avoid driving or operating machinery if you feel drowsy.
Nausea — Mild stomach upset may happen. Taking the medicine with food or water can help.
Numbing sensation in the mouth or throat — If a capsule breaks in your mouth, you may feel a temporary numbing or tingling. Always swallow capsules whole.
Upset stomach — Mild digestive discomfort is possible but usually goes away quickly.
Serious Side Effects
Severe allergic reaction — Rash, hives, difficulty breathing, or swelling of the face or throat are rare but require immediate medical attention.
Chest pain or tightness — Call your doctor right away if you experience chest discomfort while taking benzonatate.
Confusion or hallucinations — Unusual changes in thinking or perception are uncommon but should be reported to your doctor.
Severe dizziness or fainting — If dizziness is severe or you lose consciousness, seek emergency care.
Convulsions or seizures — This is very rare but is a sign to stop taking the medicine and call 911.
When to Seek Medical Attention
Contact your doctor right away if you experience chest pain, difficulty breathing, severe dizziness, confusion, or signs of an allergic reaction like rash or throat swelling. You should also call your healthcare provider if side effects persist, worsen, or interfere with your daily life. Don't stop taking benzonatate suddenly without talking to your doctor first—discuss any concerns about side effects so your doctor can adjust your dose or recommend an alternative cough remedy.
This information is educational and does not replace advice from your healthcare provider.
Dosage
Dose Level |
Dose |
Frequency |
Key Detail |
Standard Adult Dose |
100–200 mg (1–2 capsules) |
Three times daily |
Swallow whole with water |
Maximum Daily Dose |
600 mg per day |
Do not exceed |
About 6 capsules total |
Children (Ages 10–18) |
100 mg per dose |
Three times daily |
Same as adults; ask your doctor |
Children (Under Age 10) |
Not recommended |
— |
Talk to your doctor about alternatives |
With or Without Food |
Either way is fine |
— |
Food may help if nausea occurs |
Important: If you miss a dose, take it as soon as you remember—unless it's almost time for your next dose. Never double up on doses. Don't stop taking benzonatate without talking to your doctor, especially if it's helping your cough. If you take too much, call your local poison control center or go to the emergency room immediately. Store benzonatate at room temperature, away from heat and moisture.
Drug Interactions
Benzonatate has few major drug interactions because it works directly in your lungs and airways, not through your liver or kidneys. However, combining it with certain medicines may increase side effects like dizziness or drowsiness. Always tell your doctor about all medicines and supplements you take.
Alcohol
Drinking alcohol while taking benzonatate may increase drowsiness and dizziness. Avoid alcohol or limit intake while using this cough suppressant.
Other Cough and Cold Medicines
Taking benzonatate with other cough suppressants or decongestants may cause confusion, dizziness, or over-numbing of your throat. Use only one cough medicine at a time unless your doctor approves.
Sedating Medications (Antihistamines, Sleep Aids)
Benzonatate may add to the drowsy effects of medicines like diphenhydramine or melatonin. Don't drive or operate machinery if you feel overly tired.
Blood Pressure Medications (ACE Inhibitors, Beta-Blockers)
There's no direct interaction, but dizziness from benzonatate may be worse if you're on blood pressure medicine. Tell your doctor if dizziness is a problem.
Antidepressants (SSRIs, Tricyclics)
Some antidepressants may slightly increase benzonatate side effects. Your doctor can monitor you or adjust doses if needed.
Stimulant Medications (ADHD Drugs)
Benzonatate may counter the alertness effects of stimulants. Talk to your doctor if you take ADHD medicine.
Continue Learning
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Pros and Cons
Pros
Fast relief — Works within 15 to 20 minutes and lasts 3 to 8 hours.
Non-narcotic and non-habit-forming — Safe for long-term use without addiction risk.
Fewer drowsy side effects than other cough medicines — Better for daytime use or when you need to stay alert.
Works directly where the cough starts — Numbs lung and throat nerves instead of affecting your whole body.
Affordable, especially as a generic — Save money on generic drugs by choosing the generic version of Tessalon.
Cons
Must be swallowed whole — Inconvenient if you have trouble swallowing pills; risk of choking if broken.
Can cause dizziness — May affect your ability to drive or work safely.
Not for children under 10 — Limited options for younger kids with coughs.
Takes 15 to 20 minutes to work — Not instant relief like some other cough medicines.
May cause mouth numbing if capsule breaks — Requires careful handling and swallowing technique.
Frequently Asked Questions
Get answers to common questions about benzonatate.
Benzonatate usually starts working within 15 to 20 minutes. You'll feel the cough reflex calm down as the medicine numbs your lungs and throat. The effect lasts about 3 to 8 hours, depending on your metabolism and the dose. Take it as soon as you notice a bothersome cough.
Benzonatate is generally safe for children ages 10 and older at the same dose as adults (100–200 mg, three times a day). Children under 10 should not take benzonatate because they're more likely to choke on capsules or accidentally break them in their mouth. Talk to your doctor about safer cough options for younger children.
If you chew or break a capsule, your mouth and throat may go numb for a few minutes. This is uncomfortable but usually harmless and fades quickly. Drink water and avoid eating or drinking anything hot until the numbness is gone to prevent burns or choking. Call poison control if you're worried or if the numbness doesn't go away.
Most cough medicines should not be combined with benzonatate because the mixture may cause confusion, severe dizziness, or over-numbing of your throat. If you want to use a decongestant or expectorant along with benzonatate, ask your doctor which combination is safe. Stick to one cough suppressant at a time unless your doctor says otherwise.
Benzonatate is not well-studied in pregnant women, so most doctors recommend other ways to manage coughs during pregnancy—like honey, lozenges, steam, or rest. If your cough is severe and affecting your sleep or health, talk to your doctor about whether benzonatate's benefits outweigh the risks in your situation. Never start any new medicine during pregnancy without your doctor's approval.
The Bottom Line
Benzonatate (Tessalon Perles) is a safe, non-narcotic cough suppressant that works by numbing the nerve endings that trigger coughing. It's fast-acting, long-lasting, and has fewer drowsy side effects than many other cough medicines, making it ideal for daytime cough relief. The generic version is just as effective as the brand name and costs less. While benzonatate is well-tolerated by most people, always swallow capsules whole and avoid alcohol or sedating medicines that could increase dizziness. If you have questions about whether benzonatate is right for your cough, or if you're pregnant, breastfeeding, or taking other medications, talk to your doctor first. Ready to get relief from your persistent cough? Consult with a Doctronic healthcare professional today to discuss your symptoms and find the best treatment option for you.
