Phenobarbital Coupons & Prices

Looking for a phenobarbital coupon? Phenobarbital is a long-established generic barbiturate, but the price you're quoted for it can still swing a lot from one pharmacy to the next — which is exactly where comparing matters. Rx.com checks pricing across 60,000+ pharmacies so you can enter your ZIP above and see today's price near you before you fill.

What is phenobarbital and how does it work?

Phenobarbital is a barbiturate that works as an anticonvulsant and sedative-hypnotic. It's FDA-approved to help control generalized tonic-clonic (grand mal) and partial seizures, and for emergency control of certain acute convulsive episodes, such as those associated with status epilepticus, eclampsia, meningitis, tetanus, or toxic reactions to strychnine or local anesthetics. It's also FDA-labeled as a sedative for daytime sedation and as part of pre-anesthetic sedation. Outside of its approved uses, clinicians also use phenobarbital for neonatal seizures and in phenobarbital-based protocols for alcohol or benzodiazepine withdrawal.

There is no widely marketed brand-name version of oral or standard injectable phenobarbital in the US today — it's essentially a generic-only medication. (An older brand, Luminal, is discontinued. A separate, newer branded IV product called SEZABY, formulated specifically for neonatal seizures, is a distinct product from the generic form most people are prescribed.)

Phenobarbital cost without insurance

Phenobarbital is generic, and generic status alone doesn't guarantee a consistent price — cash prices for the same generic drug can differ substantially depending on which pharmacy fills it, even within the same city. That's true for phenobarbital too, so it's worth comparing before you pick a pharmacy rather than assuming your usual one has the best price.

There is currently no manufacturer savings card for phenobarbital. Enter your ZIP code above to compare prices at pharmacies near you and see today's price.

Phenobarbital vs. other seizure and sedative medications

Phenobarbital is one of several medications used to manage seizures. Other commonly prescribed anticonvulsants include levetiracetam, phenytoin, and gabapentin, each with its own dosing profile and side-effect considerations. Benzodiazepines such as clonazepam, diazepam, and lorazepam are also used for seizure-related and sedation purposes in some situations. Which medication is right depends on the type of seizures or condition being treated, and switching between these classes should only be done with a prescriber's guidance — they are not interchangeable.

Phenobarbital safety information

Phenobarbital is a Schedule IV controlled substance. Taking it together with opioids or other central nervous system depressants can cause profound sedation, slowed or stopped breathing, coma, or death. With continued use, the body can become physically dependent, and stopping abruptly can trigger a serious, potentially life-threatening withdrawal, including seizures — phenobarbital should only be tapered off under a doctor's supervision, never stopped suddenly on your own. It is habit-forming with a potential for misuse, may cause serious harm to a fetus if used during pregnancy, and can rarely cause severe skin reactions such as Stevens-Johnson syndrome. It should be used cautiously in people with breathing problems, liver impairment, or in older or debilitated patients.

This is general information, not medical advice — talk with your doctor or pharmacist about whether phenobarbital is right for you and how to take it safely.