When Benzonatate Isn't Available, You Still Have Options

You're dealing with a cough that won't quit, and your go-to medication — Benzonatate — isn't available at your pharmacy. Maybe they're out of stock, maybe your insurance won't cover it, or maybe you and your doctor are looking for something different. Whatever the reason, you're not stuck.

There are several effective alternatives to Benzonatate, both prescription and over-the-counter. In this guide, we'll walk you through what Benzonatate does, how it works, and the best alternatives to consider — so you can have an informed conversation with your doctor or pharmacist.

What Is Benzonatate?

Benzonatate is a prescription non-narcotic cough suppressant (antitussive) that's been available since the 1950s. It's sold as a generic and was previously available under the brand names Tessalon and Tessalon Perles. It comes in 100 mg, 150 mg, and 200 mg capsules, typically taken three times a day as needed.

Unlike opioid-based cough medicines, Benzonatate is not a controlled substance, which makes it a popular choice for doctors who want to prescribe effective cough relief without the risks of dependence or abuse.

How Does Benzonatate Work?

Benzonatate is chemically related to local anesthetics like tetracaine. It works by numbing (anesthetizing) the stretch receptors in the lungs and airways — the sensors that trigger the cough reflex. By dampening these receptors, Benzonatate reduces the urge to cough at the source, rather than suppressing the cough center in the brain (which is how most other cough suppressants work).

This unique mechanism is one reason why Benzonatate stands out. But it also means that alternatives work differently — some target the brain's cough center, others thin mucus, and some address the underlying inflammation. Understanding these differences can help you and your doctor pick the right substitute.

The Best Alternatives to Benzonatate

1. Dextromethorphan (Delsym, Robitussin DM)

Type: Over-the-counter cough suppressant

How it works: Dextromethorphan (often called "DM") works on the cough center in the brain, raising the threshold for triggering a cough. It's the most widely used OTC cough suppressant in the U.S.

Available as: Extended-release liquid (Delsym), immediate-release capsules and liquids (Robitussin DM), and combined formulations with guaifenesin or decongestants.

Pros:

• No prescription needed
• Widely available at any pharmacy or grocery store
• Affordable — typically $8 to $15 for a bottle
• Has dosing guidelines for children (unlike Benzonatate)

Cons:

• Can interact with certain antidepressants (SSRIs, SNRIs) — risk of serotonin syndrome
• May cause drowsiness, dizziness, or nausea
• Not as effective for some patients compared to Benzonatate

Best for: Patients who need quick, accessible cough relief and don't want to wait for a prescription.

2. Guaifenesin (Mucinex)

Type: Over-the-counter expectorant

How it works: Guaifenesin doesn't suppress the cough reflex — instead, it thins and loosens mucus in the airways, making it easier to cough up. This is fundamentally different from Benzonatate.

Available as: Extended-release tablets (Mucinex), liquid, and combination products.

Pros:

• No prescription needed
• Helps clear mucus from chest and airways
• Very few drug interactions
• Can be combined with other cough medications

Cons:

• Doesn't suppress the cough reflex — won't stop a dry, tickling cough
• May cause nausea or upset stomach
• Not a direct substitute for Benzonatate

Best for: Productive coughs (wet coughs with mucus), or as an add-on to another cough suppressant.

3. Codeine-Based Cough Syrups (Promethazine with Codeine)

Type: Prescription opioid cough suppressant

How it works: Codeine is an opioid that suppresses the cough center in the brain. Promethazine is an antihistamine that adds sedating and anti-nausea effects. Together, they provide strong cough suppression.

Available as: Prescription liquid/syrup (various manufacturers).

Pros:

• Very effective for severe, persistent coughs
• Also helps with nausea and sleep

Cons:

• Controlled substance (Schedule V) — requires a prescription with stricter monitoring
• Risk of drowsiness, constipation, and respiratory depression
• Potential for dependence and misuse
• Not suitable for children

Best for: Severe coughs that haven't responded to non-narcotic options, under close medical supervision.

4. Hydrocodone/Homatropine (Hycodan)

Type: Prescription opioid cough suppressant

How it works: Hydrocodone is a stronger opioid that suppresses the cough center in the brain. Homatropine is added as an anticholinergic to discourage misuse.

Available as: Prescription tablet and liquid (Hycodan and generics).

Pros:

• Very potent cough suppression
• Effective when other options have failed

Cons:

• Schedule II controlled substance — highest restriction level for prescribable drugs
• High risk of dependence and abuse
• Significant side effects including sedation, constipation, and respiratory depression
• Usually reserved as a last resort

Best for: Severe, intractable coughs when all other options have failed and benefits outweigh risks.

Quick Comparison

Here's a simple breakdown to help you compare:

• Dextromethorphan: OTC, works on brain's cough center, good first alternative
• Guaifenesin: OTC expectorant, best for wet/productive coughs, not a direct substitute
• Codeine syrup: Prescription, opioid-based, effective but carries dependence risk
• Hydrocodone: Prescription, Schedule II, last resort for severe coughs

What to Ask Your Doctor

Before switching from Benzonatate to an alternative, here are some questions to ask your healthcare provider:

• Is my cough dry or productive? (This affects which alternative is best.)
• Are any of these alternatives unsafe with my other medications?
• How long should I try the alternative before following up?
• Should I combine an expectorant with a cough suppressant?

Still Want Benzonatate?

If you'd prefer to stick with Benzonatate, it may just be a matter of finding the right pharmacy. Check Medfinder to search for pharmacies near you that have it in stock. You can also read our guide on how to find Benzonatate in stock near you for more tips.

Final Thoughts

Benzonatate is a great cough medication, but it's not the only option. Whether you go with an over-the-counter alternative like Dextromethorphan or Guaifenesin, or your doctor prescribes a stronger option, there are effective ways to get relief.

The most important thing is to talk to your doctor or pharmacist about what's right for your specific cough and medical history. And if availability is the main issue, tools like Medfinder can help you check pharmacy stock before you make the trip.