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Benzonatate (Generic Tessalon Perles): Uses, Dosage, Side Effects, and More
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Benzonatate is a prescription, non-narcotic cough suppressant that numbs the throat and lungs to reduce the cough reflex in colds, bronchitis, pneumonia, and other respiratory conditions. It provides cough relief without the drowsiness or dependency risks of codeine-based medications and may be used alone or in combination with other treatments targeting the cough’s underlying cause. Accidental ingestion, especially by children, can be fatal and requires immediate medical attention.
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Drug Facts
Generic name
Benzonatate
Brand names
Tessalon Perles, Tessalon
Drug type
Non-narcotic antitussive (cough suppressant)
Controlled substance
Not a controlled medication
Dosage forms
Soft gelatin capsules (oral)
Typical dosage
Benzonatate is commonly dosed for adults and children over 10 years at 100–200 mg up to three times daily as needed for cough, with a maximum of 600 mg per day. It is not recommended for children under 10 years due to the risk of choking and serious adverse effects, and capsules should be swallowed whole as prescribed.
Basics
What Is Benzonatate?
Benzonatate is a prescription non-narcotic antitussive (cough suppressant) used to relieve cough caused by respiratory conditions such as bronchitis, pneumonia, or post-viral irritation.
It works by anesthetizing stretch receptors in the respiratory passages, lungs, and pleura, thereby reducing the cough reflex at its source rather than acting on the central nervous system.
Because it is neither a narcotic nor a controlled substance, benzonatate offers effective cough relief without the risk of dependence associated with opioid-based cough medications.
Note: This medication’s generic and brand-name formulations are used interchangeably throughout this article.
What Is Tessalon Perles?
Tessalon Perles is the brand-name formulation of benzonatate, supplied as liquid-filled oral capsules, typically in 100 mg or 200 mg strengths. The capsule design allows the medication to be absorbed and distributed to the respiratory tract, where it numbs cough-triggering receptors.
Tessalon Perles must be swallowed whole and should never be chewed, crushed, or dissolved, as breaking the capsule can cause dangerous numbing of the mouth and throat and increase the risk of choking.
Due to its non-narcotic mechanism and localized action, Tessalon Perles is commonly prescribed when cough suppression is needed without sedation or abuse potential.
Indications
What Is Benzonatate Used For?
Tessalon Perles are primarily prescribed to relieve coughing, often caused by respiratory ailments. While they do not address the underlying cause of the cough, they significantly help manage one of the most disruptive symptoms associated with respiratory tract irritation.
Primary Indications
- Cough Related to Respiratory Infections: One of the primary uses of Tessalon Perles is to alleviate cough associated with respiratory infections, including the common cold, pneumonia, and bronchitis. For individuals experiencing severe coughing that disrupts daily activities or sleep, Tessalon Perles offers an effective treatment that allows the respiratory tract to rest and heal.
- Symptomatic Relief in Chronic Respiratory Conditions: In chronic respiratory conditions, Tessalon Perles may be used to manage persistent coughs associated with chronic bronchitis or other chronic respiratory diseases. Although benzonatate does not directly treat these conditions, it provides welcome relief from persistent coughing, improving patients’ overall quality of life.
- Post-Surgical Cough Management: Tessalon Perles are sometimes used to manage postoperative coughs, which can cause significant discomfort and may interfere with healing after surgery. By reducing the cough reflex, patients are less likely to experience painful coughing fits that could potentially disrupt surgical sites or sutures.
For any use, consultation with a healthcare provider is essential to ensure that Tessalon Perles are appropriate for the individual’s specific condition and medical history.
Mechanism
How Does Benzonatate Work?
Tessalon Perles operates via a distinct mechanism that targets nerve endings in the lungs and airways. This method of action is particularly effective at suppressing the cough reflex without engaging the central nervous system, making Tessalon Perles unique among cough suppressants.
Mechanism of Action
Benzonatate, the active ingredient in Tessalon Perles, functions by anesthetizing the stretch receptors in the respiratory tract. When these receptors are numbed, the stimulus that typically prompts coughing is reduced. This results in decreased activity of the cough reflex arc, significantly reducing the frequency and intensity of coughing episodes.
Effects and Timing
After administration, Tessalon Perles begin to take effect in approximately 15 to 20 minutes. The benefits of numbing the cough reflex pathways can last up to 8 hours, providing sustained relief throughout the day or overnight. This duration is advantageous for patients needing consistent symptom management without frequent dosing.
Unique Attributes
Unlike some other cough medications that rely on antitussive or narcotic effects, Tessalon Perles works peripherally. This peripheral action means they typically do not cause central nervous system depression, thereby reducing the likelihood of drowsiness or sedation to a significant degree. However, some users may still experience these effects due to individual responses.
Dosage
Benzonatate Dosages and Administration
Proper dosing and administration of Tessalon Perles are critical for ensuring effectiveness while minimizing potential side effects. As with any medication, adherence to recommended dosing guidelines is essential for achieving optimal symptom relief.
Standard Dosage Guidelines
Typically, Tessalon Perles are prescribed at 100-200 mg, taken orally up to 3 times daily as needed for cough management. The total daily dose should not exceed 600 mg unless specifically directed by a healthcare provider.
This regimen supports consistent symptom relief while maintaining safety and minimizing the risk of adverse effects.
Duration of Use
The duration for which Tessalon Perles can be safely administered should align with the duration of symptom persistence. Although the medication does not address the underlying cause of a cough, its use is intended to support symptomatic management during illness.
It is crucial to have ongoing consultation with a healthcare provider to determine the appropriate duration of therapy, which generally does not extend beyond the acute symptom phase.
Administration Instructions
Tessalon Perles should be swallowed whole with a full glass of water. It is important not to chew, dissolve, or crush the capsules, as doing so can cause an anesthetic effect in the mouth and throat, potentially causing numbness and increasing the risk of choking.
Ensure the medication is taken exactly as prescribed to optimize its benefits and reduce the risk of side effects. Always consult with a medical professional for advice tailored to individual health needs and conditions.
- Critical Safety (Prevention of “Silent Aspiration”): If a Tessalon Perle is bitten, chewed, or allowed to dissolve, it releases a potent local anesthetic that numbs the mouth and throat, suppressing the gag reflex and increasing the risk of silent aspiration of food, liquid, or saliva—which can lead to chemical pneumonia; if a capsule breaks in the mouth, avoid eating or drinking until numbness fully resolves (typically 1–2 hours).
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Side Effects
Benzonatate Side Effects and Safety
While Tessalon Perles is generally well tolerated when taken as prescribed, as with any medication, side effects can occur. Awareness of these possible effects and safety precautions helps ensure that Tessalon Perles are used safely and effectively.
Common Side Effects
Most people experience few or mild side effects, which often improve as the body adjusts to the medication. The most commonly reported include:
- Drowsiness: Tessalon Perles may cause mild sedation or fatigue, potentially affecting alertness and coordination. Because of this, patients should avoid driving, operating heavy machinery, or performing tasks requiring concentration until they know how the medication affects them.
- Dizziness and Headache: Some users experience lightheadedness or headaches, particularly shortly after dosing. Standing up slowly and staying hydrated can help lessen these effects.
- Nausea or Upset Stomach: Gastrointestinal discomfort may occur in some individuals, especially if the medication is taken on an empty stomach. Taking Tessalon Perles with food or a full glass of water may help reduce nausea.
While these symptoms are typically mild and transient, patients should inform their healthcare provider if they persist or worsen.
Serious Side Effects
Although rare, some side effects from Tessalon Perles can be serious or potentially life-threatening, requiring immediate medical attention:
- Allergic Reactions (Hypersensitivity): Tessalon Perles may occasionally cause severe allergic reactions, particularly in individuals sensitive to related compounds. Warning signs include skin rash, itching, facial or throat swelling, shortness of breath, or difficulty breathing. If any of these occur, patients should seek emergency medical care immediately.
- Mental or Mood Changes: In rare instances, benzonatate may lead to confusion, agitation, visual hallucinations, or a feeling of restlessness. These effects are uncommon but should be taken seriously. If such symptoms appear, the medication should be stopped, and a healthcare provider should be consulted promptly.
- Clinical Update (Paradoxical Psychiatric Reactions): Although benzonatate acts peripherally on the lungs, post-marketing reports have identified rare psychiatric side effects—including bizarre dreams, visual hallucinations, and acute confusion—most commonly in younger patients (ages 10–19) and the elderly; if symptoms such as seeing things that aren’t there or sudden disorientation occur, the medication should be stopped immediately, as these effects typically resolve within a few hours as the drug clears the system.
- Accidental Chewing or Overdose: Tessalon Perles must be swallowed whole. Chewing or sucking on the capsules can numb the mouth and throat, leading to choking, severe irritation, or potentially fatal overdose, particularly in children. For this reason, Tessalon Perles should always be stored safely out of reach of children and used exactly as prescribed.
Considerations for Specific Populations
Tessalon Perles are considered safe for most adults when used as directed. However, they are not recommended for children under 10 years old, as accidental ingestion can cause serious toxicity or death. Patients should also avoid combining Tessalon Perles with alcohol, sedatives, or other central nervous system depressants, as this can increase drowsiness and the risk of impaired coordination.
If any unusual or severe symptoms occur, contact a healthcare professional immediately. Proper use, adherence to dosing instructions, and awareness of potential side effects can help ensure that Tessalon Perles provides effective cough relief while maintaining patient safety.
Fatal Child Toxicity Alert: Tessalon Perles are small, yellow, liquid-filled capsules that resemble candy, making them especially dangerous for children. Accidental ingestion can cause life-threatening poisoning within 15–20 minutes, and even one capsule may lead to seizures, respiratory failure, or cardiac arrest. Current safety standards recommend storing benzonatate in a locked cabinet, not a standard medicine cabinet, to prevent accidental exposure.
Interactions
Benzonatate Interactions
Certain combinations may increase the risk of side effects such as excessive drowsiness or impaired coordination. This is especially important for patients taking multiple medications or those with underlying medical conditions.
Drug Interactions
In most cases, Tessalon Perles can be taken safely with other medications, including:
- Mucinex (guaifenesin): Helps loosen mucus and complements Tessalon Perles’ cough-suppressing effects.
- Ibuprofen or Tylenol (acetaminophen): Often used for fever or body aches, and does not interact significantly with benzonatate.
However, some medications may enhance the sedative properties of Tessalon Perles or lead to unwanted side effects when taken together:
- Over-the-Counter Cough and Cold Products: Combination remedies such as NyQuil, DayQuil, or Theraflu often contain sedating antihistamines or cough suppressants. When used with Tessalon Perles, these can cause increased drowsiness, dizziness, or reduced alertness. It’s best to consult a pharmacist or healthcare provider before using multiple cough or cold medications at once.
- Central Nervous System (CNS) Depressants: Medications that slow down brain activity, such as Benadryl (diphenhydramine), certain sleep aids, muscle relaxants, or prescription cough syrups containing dextromethorphan or codeine, can have an additive sedative effect when combined with Tessalon Perles. This may lead to excessive sleepiness, confusion, or slowed reflexes, increasing the risk of falls or accidents. Such combinations should only be used under medical supervision.
Alcohol Interaction
Alcohol acts as a central nervous system depressant, and when taken with Tessalon Perles, it can intensify drowsiness, dizziness, and coordination problems. This increases the risk of impaired judgment and accidental injury. For safety reasons, alcohol should be avoided entirely while taking this medication.
Safety Guidance
Although Tessalon Perles has relatively few major drug interactions, even mild additive effects can be problematic, especially for older adults, people with respiratory conditions, or those using multiple sedating medications. To ensure safe treatment:
- Provide your healthcare provider with a complete list of all medications, supplements, and herbal products you use.
- Avoid combining multiple cough or cold remedies without professional advice.
- Monitor for excessive sedation or dizziness, particularly when starting or adjusting doses.
By taking these precautions, patients can use Tessalon Perles effectively to manage cough while minimizing the risk of unwanted or dangerous side effects.
Contraindications
Benzonatate Contraindications
Contraindications refer to medical situations or patient groups in which Tessalon Perles should not be used, either because of serious potential risks or insufficient safety data. Being aware of these restrictions helps prevent accidental harm and ensures that the medication is taken only under suitable conditions.
Absolute Contraindications
- Children Under 10 Years Old: Tessalon Perles are strictly contraindicated in children under 10, as young children are extremely sensitive to benzonatate and even a single capsule can be fatal if swallowed or chewed. Poisoning can occur within minutes and may cause choking, severe agitation, seizures, coma, or cardiac arrest, so this medication must never be prescribed to or accessible by children.
- Known Allergy or Hypersensitivity: Individuals with a known allergy to benzonatate or chemically related compounds (such as para-aminobenzoic acid, found in some anesthetics) should not take this medication. Reactions can range from rash or itching to life-threatening anaphylaxis with facial or throat swelling, breathing difficulty, or loss of consciousness. Anyone with a prior hypersensitivity to similar drugs should discuss alternative treatments with their healthcare provider.
- Serious Cardiac Conditions: Patients with preexisting heart rhythm abnormalities or cardiac conduction disorders should use Tessalon Perles only under close medical supervision. Although rare, benzonatate toxicity—especially in overdose—can interfere with the electrical activity of the heart, potentially causing arrhythmias or cardiac arrest. Individuals with severe heart disease or a history of heart rhythm problems should consult their healthcare provider before using this medication.
Considerations During Pregnancy and Breastfeeding
Tessalon Perles are not formally contraindicated during pregnancy or breastfeeding, but caution is advised due to limited safety data:
- Pregnancy: There is insufficient research to determine whether benzonatate poses risks to a developing fetus. Animal studies are lacking, and human data are limited. As a result, Tessalon Perles should be prescribed during pregnancy only when the potential benefit outweighs the possible risk—for example, when the cough is significantly affecting maternal health or sleep.
- Breastfeeding: It is not known whether benzonatate passes into breast milk. Given the potential for serious toxicity in infants, including respiratory depression and choking if exposure occurs, nursing mothers should use this medication only under medical supervision or consider alternative cough treatments known to be safer during lactation.
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Frequently Asked Questions (FAQs)
Didn’t see the answers you’re looking for in this article? Check out this comprehensive FAQ for more details.
Administration & Dosage
Tessalon Perles (benzonatate) should typically be taken every 8 hours as needed to relieve cough symptoms. However, it is crucial not to exceed a total daily dose of 600 mg unless your healthcare provider directs otherwise. This ensures that you remain within safe dosing limits and reduces the risk of side effects.
Tessalon Perles is available as soft gel capsules. It is important to swallow these capsules whole without chewing or sucking on them. Chewing the capsules can release the medication all at once, which can numb parts of your mouth and throat and potentially lead to choking or other adverse effects.
The relief provided by Tessalon Perles generally lasts up to 8 hours following each dose. This duration of action helps manage cough symptoms throughout the day when taken as prescribed. If your symptoms persist or worsen, it is advisable to consult with a healthcare professional.
Your healthcare provider should determine how many days you can take Tessalon Perles. Generally, the use is aligned with the duration of your cough symptoms. Continuous use over a prolonged period should be under medical supervision to ensure the root cause of the cough is effectively addressed.
Tessalon Perles is not recommended for use in children under 10 years old. The medication can cause serious side effects in young children, including restlessness, tremors, convulsions, and reduced breathing. It's important to adhere strictly to age recommendations and consult with a pediatrician for appropriate alternatives for children.
Uses & Mechanism of Action
Tessalon Perles are used to relieve coughs associated with the common cold and other respiratory tract infections. They are particularly effective in treating non-productive coughs in which no mucus is being expelled. The medication helps soothe and reduce the frequency of the coughing impulse.
Tessalon Perles works by numbing the throat and lungs, reducing the cough reflex. The active ingredient, benzonatate, is an antitussive agent that decreases the sensitivity of the stretch receptors in the respiratory passages. This action helps in reducing the urge to cough without affecting normal respiration.
Tessalon Perles are not classified as a controlled substance. The medication is available by prescription due to its potential side effects and the requirement for professional dosage oversight. However, it does not have the abuse potential associated with controlled substances.
The active ingredient in Tessalon Perles is benzonatate. This medication belongs to a class of drugs known as antitussives, which function by numbing the pleasure and stretch receptors in the lungs and airways that trigger the cough reflex. This numbing effect reduces the urge to cough.
Tessalon Perles start to work approximately 15–20 minutes after ingestion. Patients often begin to notice a reduction in cough frequency and intensity within this timeframe. It is important to give the medication time to take effect and not to take additional doses before the advised time.
Side Effects & Safety
Tessalon Perles can cause drowsiness or dizziness in some patients. Given these potential side effects, caution is advised when engaging in activities that require mental alertness, such as driving or operating heavy machinery, until you know how the medication affects you.
Tessalon Perles are generally considered safe when used as prescribed. However, as with any medication, there is a risk of side effects. These may include drowsiness, dizziness, headache, and nausea. It's important to follow dosing instructions and consult with a healthcare provider if adverse reactions occur.
The safety of Tessalon Perles during pregnancy has not been fully established. Pregnant individuals should only use this medication if it is clearly needed and after consulting with their healthcare provider. It is crucial to weigh the potential benefits against any possible risks to the fetus.
Common side effects of Tessalon Perles include drowsiness, dizziness, headache, nausea, and sensations of chill. Most of these side effects are mild and may resolve as your body adapts to the medication. If any side effects become severe or concerning, seek medical advice promptly.
While data on benzonatate excretion in human milk are limited, breastfeeding individuals should exercise caution and consult a healthcare provider before using Tessalon Perles. The provider will consider the benefits of breastfeeding and the importance of the medication to the mother.
Interactions & Contraindications
There are no known direct interactions between Tessalon Perles and Mucinex. However, it is advisable to consult with a healthcare provider before combining these medications to ensure that the combination is appropriate for your specific situation.
Both Tessalon Perles and NyQuil can cause drowsiness. Therefore, it is important to consult your healthcare provider before using these medications together. They will help evaluate if this combination is suitable for you based on your health condition and treatment goals.
It is generally considered safe to take Tessalon Perles with DayQuil, as DayQuil does not usually contain sedative components. Nonetheless, always confirm with a healthcare provider to ensure this combination is appropriate given your symptoms and health history.
While taking Tessalon Perles, it is recommended to avoid alcohol and other central nervous system (CNS) depressants, as these may enhance drowsiness and sedation effects. It's also prudent to avoid activities that require full mental alertness after taking the medication.
There are no known harmful interactions between Tessalon Perles and Robitussin. However, to avoid unnecessary treatment or dosing, it’s best to consult your healthcare provider. They can provide guidance on managing cough and respiratory symptoms with appropriate medications.
Generic & Alternatives
The generic name for Tessalon Perles is benzonatate. This medication is available in its generic form and works as a cough suppressant by numbing the airways and lungs.
Tessalon Perles are not available over the counter and require a prescription. A healthcare provider should evaluate and prescribe this medication to ensure it is safe and suitable for the individual’s specific medical condition.
Alternatives to Tessalon Perles for cough relief include dextromethorphan-containing products such as Delsym, but the choice depends on the type of cough and how well you tolerate side effects. Dextromethorphan works in the brain and can cause brain fog, dizziness, or a dissociative “drunk” feeling in some people, whereas benzonatate works on lung nerves rather than the brain, making it a preferred option for patients who need to stay alert and focused during the day. Because coughs have many causes, the best alternative should be selected with a healthcare provider based on symptom type and individual health factors.
Benzonatate, the active ingredient in Tessalon Perles, is not a steroid. It is an antitussive medication that helps suppress cough reflexes by numbing certain nerves in the lungs and airways.
There are currently no reports of Tessalon Perles being discontinued, according to the latest available data. The medication remains a prescribed treatment option for cough relief as needed. Always check with a pharmacy or healthcare provider for the most current information.
Disclaimer
The information provided on this page is for general informational purposes only and is not intended as medical advice. Always consult with a licensed healthcare provider before starting, stopping, or changing any medication regimen. While Invictus strives to provide accurate and up-to-date information, individual health conditions and circumstances vary. The prices, availability, and descriptions of all medications on this page are subject to change.
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