Benzonatate vs Benzodiazepine: Two Common Meds Compared

If you have ever searched for benzonatate vs benzodiazepine, you are not alone. These medications are often confused because their names sound similar, but they are very different drugs used for entirely different medical conditions. Understanding how benzonatate and benzodiazepines work, what they treat, and how safe they are can help you avoid medication errors and have more informed conversations with your healthcare provider.

What Is Benzonatate?

Benzonatate is a non-narcotic cough suppressant used to relieve coughing associated with respiratory conditions such as colds, bronchitis, and other lung infections. It does not treat the underlying infection. Instead, it helps reduce the urge to cough.

How Benzonatate Works

Benzonatate works by numbing the stretch receptors in the lungs and airways that trigger the cough reflex. By calming these receptors, the medication reduces coughing without affecting the brain’s cough center, unlike opioid cough medicines.

Common Uses of Benzonatate

• Short-term relief of acute cough
• Cough related to upper or lower respiratory infections
• Post-viral cough in some patients

Benzonatate is taken by mouth in capsule form and must be swallowed whole. Chewing or dissolving the capsule can cause numbness of the mouth or throat and may increase the risk of choking. Benzonatate belongs to a class of medications known as local anesthetics. The same type of medicine a dentist might use to numb your mouth. Working directly on the airways rather than the brain often provides faster relief, prompting many to ask, How quickly does benzonatate work after taking it.

How to Take Benzonatate Safely

Benzonatate is taken by mouth and must be swallowed whole. Do not chew, crush, or dissolve the capsule, as this can cause numbness of the mouth or throat and increase the risk of choking. Take benzonatate only as prescribed and keep it out of reach of children, as accidental ingestion can be dangerous, especially for children under age 10.

What Is Benzodiazepine?

A benzodiazepine is not a single medication, but rather a class of drugs that affect the central nervous system (CNS). Benzodiazepines are commonly prescribed for anxiety, panic disorders, seizures, muscle spasms, and short-term sleep problems. Some commonly prescribed benzodiazepines include alprazolam, lorazepam, and diazepam. While each medication differs slightly in how long it lasts and how quickly it works, they all belong to the same drug class and share similar effects.

How Benzodiazepines Work

Benzodiazepines enhance the effect of gamma-aminobutyric acid (GABA), a neurotransmitter that slows down brain activity. This produces calming, sedative, muscle-relaxing, and anti-seizure effects. Here are common uses of benzodiazepines:

• Anxiety and panic disorders
• Acute stress reactions
• Seizure management
• Muscle spasms
• Short-term treatment of insomnia

Because benzodiazepines affect the CNS and can carry risks beyond their intended uses, it’s also important to understand how these medications are regulated and monitored for safety.

Controlled Substance Status and Safety Monitoring

Because of their effects on the brain and their potential for dependence, benzodiazepines are classified as Schedule IV controlled substances by the U.S. Drug Enforcement Administration (DEA). This means they have a recognized medical use but also carry a risk of misuse, tolerance, and withdrawal. For this reason, benzodiazepines are typically prescribed at the lowest effective dose, for short durations, or with close medical monitoring. Mainly when used long-term or in combination with other sedating medications.

Why Use Benzodiazepine or Benzonatate?

The choice between benzodiazepine vs benzonatate depends entirely on the specific symptom or condition being treated.

• Benzonatate is used to suppress cough.
• Benzodiazepines are used when treatment involves anxiety, seizures, muscle tension, or sleep disturbances.

Despite their similar-sounding names, these medications act on different parts of the body, treat different conditions, and have very different safety profiles. One cannot replace the other.

Benzodiazepine vs benzonatate: What Are the Differences?

Although their names sound similar, benzodiazepines and benzonatate differ significantly in how they work, what they treat, and how they are regulated. The table below highlights the key differences between benzodiazepines and benzonatate.

Feature	Benzodiazepine	Benzonatate
Drug class	CNS depressant	Antitussive
Primary use	Anxiety, seizures, sleep	Cough suppression
Acts on the brain	Yes	No (acts on lungs)
Sedation	Common	Possible but mild
Addiction risk	Yes	No
Controlled substance	Yes	No

While this table shows the main differences at a glance, looking more closely at how each medication is used and how it affects the body helps explain why they are not interchangeable.

Primary Medical Use

Benzodiazepine and benzonatate each have a separate primary medical use.

Benzodiazepine

Benzodiazepines are used to treat conditions involving overactivity of the nervous system, such as anxiety disorders, panic attacks, seizures, and muscle spasms. They work by calming brain activity.

Benzonatate

Benzonatate is used only for cough relief. It does not affect anxiety, sleep, pain, or muscle tension, and does not act on the brain in the same way benzodiazepines do.

Effects on the Central Nervous System

Both benzodiazepine and benzonatate have different effects on the central nervous system.

Benzodiazepine

Benzodiazepines directly affect the central nervous system and commonly cause:

• Sedation
• Slowed reaction time
• Impaired coordination
• Drowsiness

Because of these effects, driving or operating machinery may be unsafe while taking them.

Benzonatate

Benzonatate has minimal central nervous system effects. While some people may feel slightly drowsy, it does not produce the strong sedative or calming effects associated with benzodiazepines.

Safety and Dependency Risk

Benzodiazepine and benzonatate have different risk profiles.

Benzodiazepine

Benzodiazepines carry a known risk of:

• Physical dependence
• Tolerance (needing higher doses over time)
• Withdrawal symptoms if stopped abruptly

These risks are why benzodiazepines are closely monitored and often prescribed for short-term use or tapered gradually when discontinued.

Benzonatate

Benzonatate does not cause dependence or addiction. However, it must be used carefully, especially around children. Benzonatate is not approved for children under age 10, as accidental ingestion of even one or two capsules can be fatal in small children.

Is Benzodiazepine the Same as Benzonatate?

No. Benzodiazepine is not the same as benzonatate. Although their names sound similar, they belong to different drug classes, treat different medical conditions, and work in completely different ways. Confusing the two can lead to medication errors. This is why it is essential to double-check prescriptions and labels.

Is Benzodiazepine as Good as Benzonatate?

Neither medication is better in general. It depends on the condition being treated.

• Benzodiazepines are not effective for cough relief.
• Benzonatate does not treat anxiety, seizures, or insomnia.

Each medication is effective only when used for its intended purpose.

What Side Effects Are Common Between Benzonatate and Benzodiazepine?

Although these medications work in very different ways, some side effects can overlap. Common shared side effects include:

• Drowsiness
• Dizziness
• Headache
• Fatigue

These effects are usually mild and short-lived with benzonatate. Benzodiazepines tend to be more noticeable because they directly affect the central nervous system. The likelihood and intensity of side effects can vary based on dose, individual sensitivity, and whether other medications that cause drowsiness are taken at the same time.

What Side Effects Are Not Common Between Benzodiazepine and Benzonatate?

Here are the benzodiazepine-specific side effects:

• Memory problems
• Confusion, especially in older adults
• Slowed breathing at high doses
• Increased fall risk
• Withdrawal symptoms with long-term use

Here are the benzonatate-specific side effects:

• Numbness of the mouth or throat if the capsule is chewed
• Chest numbness
• Nausea
• Rare allergic reactions

While these side effects can vary in severity, understanding them is the first step toward using either medication safely. Beyond safety, most patients want to know one thing. How well do these drugs actually work for their intended conditions?

How Successful Is Benzonatate?

Benzonatate is effective in suppressing cough in many patients, although responses vary. Clinical studies show that benzonatate successfully reduces cough frequency and severity in patients with coughs due to respiratory infections and chronic conditions. The medication typically begins to take effect within 15-20 minutes after a dose, with effects lasting 3-8 hours. Most patients report noticeable improvement in their cough symptoms, allowing better sleep and reduced throat irritation. Success rates appear highest for non-productive (dry) coughs, where the cough reflex serves no beneficial purpose. However, benzonatate is less effective for productive coughs, in which mucus must be expelled. Some patients don't respond to benzonatate at all and may need alternative treatments. The medication addresses symptoms rather than underlying causes, so it won't cure respiratory infections or eliminate coughs from chronic conditions. It simply provides temporary relief. It is generally not intended for long-term cough management without medical supervision.

How Successful Is Benzodiazepine?

Benzodiazepines can be very effective when used for short periods of time and for the right medical reasons. For anxiety or panic attacks, these medications often work quickly, with most formulations beginning to take effect within 15 to 30 minutes. This rapid onset makes them helpful during acute or high-stress situations. Many people experience noticeable relief from anxiety symptoms when taking them as prescribed. Benzodiazepines are also commonly used in emergency settings to stop active seizures. Certain medications in this class, such as diazepam and lorazepam, are often effective at quickly controlling seizure activity. As sleep aids, benzodiazepines can help people fall asleep faster and stay asleep longer, although they may change normal sleep patterns. Benzodiazepines are not ideal for long-term use. Over time, the body may become accustomed to them, reducing their effectiveness. Long-term use can also lead to physical dependence, making it harder to stop the medication safely. Other risks include drowsiness, memory problems, falls, and dangerous interactions with alcohol or other drugs. Overall, benzodiazepines tend to be most successful for short-term symptom relief. For ongoing treatment of anxiety or sleep problems, healthcare providers often recommend other medications or non-drug approaches that carry fewer long-term risks.

Is Benzonatate Better Than Benzodiazepine?

Benzonatate is not better or worse than benzodiazepines. It is simply different.

• Benzonatate is better for cough suppression.
• Benzodiazepines are better for anxiety, seizures, and muscle relaxation.

The most important takeaway is that medication choice should be based on medical need, not name similarity. Always follow your healthcare provider’s instructions and ask questions if you are unsure why a medication was prescribed.

Save More On Your Prescriptions with ScriptSave® WellRx

Prescription prices can vary widely from one pharmacy to another, even for common medications such as benzonatate. These differences can make it harder to know if you are paying more than necessary. With a free ScriptSave® WellRx account, you can compare prices at nearby pharmacies, find lower-cost options, and access discounts on thousands of prescription medications. ScriptSave® WellRx helps you:

• Compare pharmacy prices quickly. Find more affordable prescription options
• Save up to 80%* on eligible medications

Sign up for your free ScriptSave® WellRx account today and start saving. *DISCOUNT ONLY – NOT INSURANCE. The program is administered by Medical Security Card Company, LLC. Alyse Thompson, M.D., is a freelance medical writer with experience caring for patients in primary and urgent care settings. She also has a master's degree in basic medical science. She has managed acute and chronic diseases and participated in medical and pharmaceutical research.

References

https://medlineplus.gov/druginfo/meds/a682640.html

https://www.ncbi.nlm.nih.gov/books/NBK430894/

https://publications.aap.org/pediatrics/article/150/6/e2022057779/189946/

https://my.clevelandclinic.org/health/treatments/24570-benzodiazepines-benzos

https://www.wellrx.com/alprazolam/drug-information/

https://www.wellrx.com/prescriptions/lorazepam/

https://www.wellrx.com/valium/drug-information/

https://my.clevelandclinic.org/health/articles/22857-gamma-aminobutyric-acid-gaba

https://www.wellrx.com/benzonatate/drug-information/

https://www.medcentral.com/drugs/monograph/14257-382640/benzonatate-oral

https://www.accessdata.fda.gov/drugsatfda_docs/label/2011/011210s053lbl.pdf

https://downloads.asam.org/sitefinity-production-blobs/docs/default-source/guidelines/benzodiazepine-tapering-2025/pharmacokinetic-properties-of-benzodiazepines.pdf

https://www.acepnow.com/article/acep-clinical-policy-on-seizures/