naltrexone

Frequently asked questions

What does Naltrexone treat?

Naltrexone (Naltrexone) may be used to treat alcoholism, opioid-related disorders, drug overdose, based on NIH RxClass drug-classification data (conditions a drug may treat — not a verbatim copy of the FDA-approved label). This is general reference, not medical advice.

How does Naltrexone work?

Naltrexone is a opioid antagonist. Opioid antagonists attach to the same brain and body receptors that opioids use, but without switching them on. By occupying those receptors, they block opioids from binding and can rapidly reverse an overdose or curb opioid cravings.

How is Naltrexone rated?

pharmaranks gives Naltrexone a composite score of 2.8 out of 5, currently based on 1 weighted source (FDA regulatory recall-safety data weighted highest). See our methodology at /how-we-rate.

How much does Naltrexone cost?

Nobody can tell you what you will pay — your price is set by your insurer's formulary, your deductible and the pharmacy's markup, and none of those are published. What IS published is what the pharmacy paid to acquire it: about $36.35 for 30, per the CMS NADAC survey. Treat that as the floor, not the quote — ask the pharmacist for the cash price as well as your copay, because for cheap generics the cash price often wins.

Is there a coupon or discount for Naltrexone?

pharmaranks is an independent ratings site, not a pharmacy — we don't issue coupons or sell Naltrexone. To pay less, Naltrexone is already a generic — usually the lowest-cost version — so the main levers are comparing cash prices between pharmacies and using a pharmacy discount-card service. Prices vary by pharmacy, insurance, and location, so always confirm at the counter. This is general reference, not medical or financial advice.

Who makes Naltrexone?

Naltrexone is marketed by Teva. You can see Teva's full profile, rating, and other products on pharmaranks.

Is Naltrexone a brand-name or generic drug?

Naltrexone is a generic medication; its active ingredient is Naltrexone. Generics contain the same active ingredient as the brand-name original and are usually lower cost.

Is Naltrexone available over the counter?

No. Naltrexone is a prescription (Rx) medication in the US — you need a prescription from a licensed clinician (in person or via telehealth); it isn't sold over the counter. For some conditions there are OTC alternatives — ask your pharmacist.

What forms does Naltrexone come in?

Naltrexone is currently marketed as kit, per the FDA's National Drug Code Directory.

What class of drug is Naltrexone?

Naltrexone is classified as opioid antagonist, per the FDA's Established Pharmacologic Class.

Is Naltrexone FDA-registered?

Naltrexone is on record with the U.S. FDA under application number ANDA213195. You can verify this on its official FDA label.

Has Naltrexone been recalled by the FDA?

Naltrexone has no FDA recalls recorded under its own application in the openFDA enforcement database. Its recall-safety score reflects its manufacturer's overall recall record. This is general reference, not medical advice — check the FDA recall database for the latest alerts.

Is Naltrexone safe?

There's no single safe-or-not verdict. pharmaranks gives Naltrexone a recall-safety score of 56/100, based on its FDA recall history (no recalls under its own FDA application) — not an efficacy or side-effect rating. Review its FDA-label side effects and warnings before use, and always consult a licensed professional.