Phenobarbital 64.8 mg Tablet, 30-count — NDC 67046-1434-3 (Billing 67046-1434-03)
This is a package of 30 tablets of Phenobarbital 64.8 mg Tablet from Coupler LLC, marketed since Jul 2025 and currently FDA-listed. It is this product's only package size.
Identity & classification
Regulatory identifiers FDA, NLM and CMS codes for this package
- RxCUI (RxNorm): 199168
Where does this data come from?
- FDA openFDA NDC Directory · synced Oct 1, 2026
- FDA label on DailyMed · label index refreshed Oct 1, 2026
- RxNorm (NLM RxNav) · catalog refreshed Oct 1, 2026
- Medi-Span GPI (licensed)
- First Databank (licensed) · refreshed Oct 1, 2026
RxNorm drug class
This medicine belongs to the Barbiturates and derivatives class.
Where does this data come from?
- RxClass (NLM) · catalog refreshed Oct 1, 2026
Clinical
- It is used as a sedative and to control seizures. The tablets and oral solutions cover both. The injections have additional uses, such as short-term insomnia, sedation before surge...
- Please don't stop on your own. Phenobarbital can cause physical dependence, and stopping suddenly can lead to withdrawal problems like delirium and seizures. If you need to stop, y...
- No, this is a big one. Alcohol and other sedating drugs add to the drowsiness. Opioid pain medicines combined with phenobarbital can cause dangerously slow breathing, coma and deat...
- Is it safe to drink alcohol or take pain medicine with it?
Patient education
Supplement & herbal interactions
Some supplements/herbs that may interact with Phenobarbital — tap one for details:
Phenobarbital may be associated with lower levels of 11 nutrients — worth a chat with your pharmacist, not a cause for alarm.
Where does this data come from?
- MedlinePlus (NLM) · refreshed Oct 1, 2026
- FDA label on DailyMed · label index refreshed Oct 1, 2026
Ask a licensed pharmacist directly — free, answered by our team.
Pricing
A drug doesn't have one price. Each row is a different public payment system, and none is what you'd pay at the counter — that depends on your insurance. The ⓘ on each row explains what it measures.
| Price system | Per each | Per package |
|---|---|---|
| Retail pharmacies payNADAC · weekly | Not in the retail survey — common for institutional, discontinued, or low-volume packs. | |
| Medicaid paysCMS SDUD · 12 mo | No recent Medicaid claims on file for this NDC — rare and low-volume NDCs are suppressed in the public data. | |
| Medicare drug plans payPart D · Q2 2026 | $0.4289 | $12.87 / 30 tablets |
Where does this data come from?
- CMS NADAC weekly file
- CMS ASP pricing files · refreshed Sep 20, 2026
- CMS Medicaid State Drug Utilization Data · refreshed Oct 3, 2026
- CMS Part D plan pricing files · refreshed Sep 24, 2026
- VA National Acquisition Center price file
Packaging — all sizes for this product
| Package NDC | Description | Marketing start | Marketing end | Status |
|---|---|---|---|---|
| 67046-1434-03 You're viewing this Main listing | 30 TABLET in 1 BLISTER PACK | 2025-07-02 | — | Active |
Therapeutic equivalents
| Product | Labeler | Pack | NADAC/unit | TE | Status | Price vs. this |
|---|---|---|---|---|---|---|
| Phenobarbital 64.8 mg 00603-5167-21 | Par | 100 tablets | $0.102 | — | Availability likely | — |
| Phenobarbital 64.8 mg 13517-0627-01 | e5 | 100 tablets | $0.102 | — | Discontinued | — |
| Phenobarbital 64.8 mg 13811-0306-10 | Trigen | 100 tablets | $0.102 | — | Availability likely | — |
| Phenobarbital 64.8 mg 16571-0667-01 | Rising | 100 tablets | $0.102 | — | Availability likely | — |
| Phenobarbital 64.8 mg 69367-0213-01 | Westminster | 100 tablets | $0.102 | — | Discontinued | — |
| Phenobarbital 64.8 mg 69367-0443-01 | Westminster | 100 tablets | $0.102 | — | Availability likely | — |
| Phenobarbital 64.8 mg 69367-0627-01 | Westminster | 100 tablets | $0.102 | — | Availability likely | — |
| Phenobarbital 64.8 mg 75826-0141-00 | WINDER | 1000 tablets | $0.102 | — | Availability likely | — |
| Phenobarbital 64.8 mg 51672-5328-01 | Sun | 100 tablets | — | — | FDA listed | — |
| Phenobarbital 64.8 mg 58118-0576-08 | Clinical | 30 tablets | — | — | FDA listed | — |
| Phenobarbital 64.8 mg 62135-0407-60 | Chartwell | 60 tablets | — | — | FDA listed | — |
| Phenobarbital 64.8 mg 63629-2402-01 | Bryant | 1000 tablets | — | — | FDA listed | — |
| Phenobarbital 64.8 mg 63629-2403-01 | Bryant | 100 tablets | — | — | FDA listed | — |
| Phenobarbital 64.8 mg 64950-0576-01 | Genus | 100 tablets | — | — | FDA listed | — |
| Phenobarbital 64.8 mg 67046-0780-03 | Coupler | 30 tablets | — | — | FDA listed | — |
| Phenobarbital 64.8 mgthis 67046-1434-03 | Coupler | 30 tablets | — | — | FDA listed | — |
| Phenobarbital 64.8 mg 70518-4215-00 | REMEDYREPACK | 30 tablets | — | — | FDA listed | — |
| Phenobarbital 64.8 mg 70752-0163-10 | QUAGEN | 100 tablets | — | — | FDA listed | — |
| Phenobarbital 64.8 mg 71205-0849-00 | Proficient | 100 tablets | — | — | FDA listed | — |
| Phenobarbital 64.8 mg 71205-0892-00 | Proficient | 100 tablets | — | — | FDA listed | — |
| Phenobarbital 64.8 mg 72162-1167-00 | Bryant | 1000 tablets | — | — | FDA listed | — |
| Phenobarbital 64.8 mg 72162-1265-00 | Bryant | 1000 tablets | — | — | FDA listed | — |
| Phenobarbital 64.8 mg 82804-0984-00 | Proficient | 100 tablets | — | — | FDA listed | — |
| Phenobarbital 64.8 mg 70518-4717-00 | REMEDYREPACK | 100 tablets | — | — | FDA listed | — |
| Phenobarbital 64.8 mg 62135-0557-90 | Chartwell | 90 tablets | — | — | FDA listed | — |
Where does this data come from?
- FDA openFDA NDC Directory · synced Oct 1, 2026
- FDA Orange Book · refreshed Oct 3, 2026
- CMS NADAC weekly file
Availability & generic status
We did not find an FDA-approved generic match for this exact strength, form and route.
Where does this data come from?
- FDA Orange Book · refreshed Oct 3, 2026
Inactive Ingredients / Excipients
Inactive ingredients, also called excipients, are components of the drug product other than the active ingredient. They may include fillers, dyes, coatings, preservatives, flavors, or other formulation ingredients.
Where does this data come from?
IACT rows and label-wide narrative are kept separate; availability and product-level specificity depend on the submitted label.- FDA label on DailyMed · label index refreshed Oct 1, 2026
- FDA openFDA NDC Directory · synced Oct 1, 2026
Inactive ingredient FAQ
Are inactive ingredients the same for every manufacturer?
Why might an inactive ingredient be missing?
Can inactive ingredients matter?
Manufacturer & labeler
Where does this data come from?
- FDA openFDA NDC Directory · synced Oct 1, 2026
- Drugs@FDA
Full prescribing information FDA SPL
🎯 Indications and Usage ▾
INDICATIONS AND USAGE Phenobarbital Tablets, USP are indicated for use as a sedative or anticonvulsant.
⏱️ Dosage and Administration ▾
DOSAGE AND ADMINISTRATION Oral Sedative Dose, Adults: 30 to 120 mg daily in 2 or 3 divided doses. Children: 6 mg/kg of body weight daily in 3 divided doses. Oral Hypnotic Dose, Adults: 100 to 320 mg. Oral Anticonvulsant Dose, Adults: 50 to 100 mg 2 or 3 times daily. Children: 15 to 50 mg 2 or 3 times daily.
⛔ Contraindications ▾
CONTRAINDICATIONS Phenobarbital is contraindicated in patients who are hypersensitive to barbiturates. In such patients, severe hepatic damage can occur from ordinary doses and is usually associated with dermatitis and involvement of parenchymatous organs. A personal or familial history of acute intermittent porphyria represents one of the few absolute contraindications to the use of barbiturates.
Phenobarbital is also contraindicated in patients with marked impairment of liver function, or respiratory disease in which dyspnea or obstruction is evident. It should not be administered to persons with known previous addiction to the sedative/hypnotic group, since ordinary doses may be ineffectual and may contribute to further addiction.
⚠️ Warnings ▾
WARNINGS In small doses, the barbiturates may increase the reaction to painful stimuli. Taken by themselves, the barbiturates cannot be relied upon to relieve pain or even to produce sedation or sleep in the presence of severe pain.
🤒 Adverse Reactions ▾
ADVERSE REACTIONS The following adverse reactions have been reported: CNS Depression: Residual sedation or "hangover," drowsiness, lethargy, and vertigo. Emotional disturbances and phobias may be accentuated. In some persons, barbiturates such as phenobarbital repeatedly produce excitement rather than depression, and the patient may appear to be inebriated.
Like other nonanalgesic hypnotic drugs, barbiturates, such as phenobarbital, when given in the presence of pain, may cause restlessness, excitement, and even delirium. Rarely, the use of barbiturates results in localized or diffused myalgic, neuralgic, or arthritic pain, especially in psychoneurotic patients with insomnia. The pain may appear in paroxysms, is most intense in the early morning hours, and is most frequently located in the region of the neck, shoulder girdle, and upper limbs.
Symptoms may last for days after the drug is discontinued. Respiratory/Circulatory: Respiratory depression, apnea, circulatory collapse. Allergic: Acquired hypersensitivity to barbiturates consists chiefly in allergic reactions that occur especially in persons who tend to have asthma, urticaria, angioedema, and similar conditions.
Hypersensitivity reactions in this category include localized swelling, particularly of the eyelids, cheeks, or lips, and erythematous dermatitis. Rarely, exfoliative dermatitis (e.g., Stevens-Johnson syndrome and toxic epidermal necrolysis) may be caused by phenobarbital and can prove fatal. The skin eruption may be associated with fever, delirium, and marked degenerative changes in the liver and other parenchymatous organs.
In a few cases, megaloblastic anemia has been associated with the chronic use of phenobarbital. Other: Nausea and vomiting; headache. To report SUSPECTED ADVERSE REACTIONS, contact Winder Laboratories, LLC at 1-770-307-0703, or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
🔄 Drug Interactions ▾
Drug Interactions Phenobarbital in combination with alcohol, tranquilizers, and other central nervous system depressants has additive depressant effects, and the patient should be so advised. Patients taking this drug should be warned not to exceed the dosage recommended by their physician. Toxic effects and fatalities have occurred following overdoses of phenobarbital alone and in combination with other central nervous system depressants.
Caution should be exercised in prescribing unnecessarily large amounts of phenobarbital for patients who have a history of emotional disturbances or suicidal ideation or who have misused alcohol and other CNS drugs (see OVERDOSAGE ).
🤰 Pregnancy ▾
Usage in Pregnancy Pregnancy Category B Reproduction studies have been performed in animals and have revealed no evidence of impaired fertility or harm to the fetus due to phenobarbital. There are, however, no adequate and well-controlled studies in pregnant women. Because animal reproduction studies are not always predictive of human response, this drug should be used during pregnancy only if clearly needed and under the supervision of a physician .
🆘 Overdosage ▾
OVERDOSAGE The signs and symptoms of barbiturate poisoning are referable especially to the central nervous system and the cardiovascular system. Moderate intoxication resembles alcoholic inebriation. In severe intoxication, the patient is comatose, the level of reflex activity conforming in a general way to the intensity of the central depression.
The deep reflexes may persist for some time despite coexistent coma. The Babinski sign is often positive. The EEG may be of the "burst-suppression" type, with brief periods of electrical silence.
The pupils may be constricted and react to light, but late in the course of barbiturate poisoning they may show hypoxic paralytic dilatation. Respiration is affected early. Breathing may be either slow or rapid and shallow; Cheyne-Stokes rhythm may be present.
Respiratory minute volume is diminished, and hypoxia and respiratory acidosis may develop. The blood pressure falls, owing partly to depression of medullary vasomotor centers; partly to a direct action of the drug on the myocardium, sympathetic ganglia, and vascular smooth muscle; partly to hypoxia. The patient thus develops a typical shock syndrome, with a weak and rapid pulse, cold and clammy skin, and a rise in the hematocrit.
Respiratory complications (atelectasis, pulmonary edema, and bronchopneumonia) and renal failure are much dreaded and not infrequent concomitant of severe barbiturate poisoning. There is usually hypothermia, sometimes with temperatures as low as 32°C. Treatment General management should consist of symptomatic and supportive therapy, including gastric lavage, administration of intravenous fluids, and maintenance of blood pressure, body temperature and adequate respiratory exchange.
Dialysis will increase the rate of removal of barbiturates from the body fluids. Antibiotics may be required to control pulmonary complications.
🧬 Clinical Pharmacology ▾
CLINICAL PHARMACOLOGY Phenobarbital, a long-acting barbiturate, is a central nervous system depressant. In ordinary doses, the drug acts as a sedative and anticonvulsant. Its onset of action occurs within 30 minutes, and the duration of action ranges from 5 to 6 hours. It is detoxified in the liver.
📦 How Supplied / Storage and Handling ▾
HOW SUPPLIED Phenobarbital Tablets, USP 15 mg: White, Round Tablet; Debossed WL on one side and 136 on the other side. Bottles of 90 tablets NDC 75826-136-90 Bottles of 100 tablets NDC 75826-136-10 Bottles of 500 tablets NDC 75826-136-50 Bottles of 1000 tablets NDC 75826-136-00 Phenobarbital Tablets, USP 16.2 mg (¼ grain): White, Round, Scored Tablet; Debossed WL on one side and 137 on the other side. Bottles of 90 tablets NDC 75826-137-90 Bottles of 100 tablets NDC 75826-137-10 Bottles of 500 tablets NDC 75826-137-50 Bottles of 1000 tablets NDC 75826-137-00 Phenobarbital Tablets, USP 30 mg: White, Round, Scored Tablet; Debossed WL on one side and 138 on the other side.
Bottles of 90 tablets NDC 75826-138-90 Bottles of 100 tablets NDC 75826-138-10 Bottles of 500 tablets NDC 75826-138-50 Bottles of 1000 tablets NDC 75826-138-00 Phenobarbital Tablets, USP 32.4 mg (½ grain): White, Round, Scored Tablet; Debossed WL on one side and 139 on the other side. Bottles of 90 tablets NDC 75826-139-90 Bottles of 100 tablets NDC 75826-139-10 Bottles of 500 tablets NDC 75826-139-50 Bottles of 1000 tablets NDC 75826-139-00 Phenobarbital Tablets, USP 60 mg: White, Round Tablet; Debossed WL on one side and 140 on the other side.
Bottles of 90 tablets NDC 75826-140-90 Bottles of 100 tablets NDC 75826-140-10 Bottles of 500 tablets NDC 75826-140-50 Bottles of 1000 tablets NDC 75826-140-00 Phenobarbital Tablets, USP 64.8 mg (1 grain): White, Round, Scored Tablet; Debossed WL on one side and 141 on the other side. Bottles of 90 tablets NDC 75826-141-90 Bottles of 100 tablets NDC 75826-141-10 Bottles of 500 tablets NDC 75826-141-50 Bottles of 1000 tablets NDC 75826-141-00 Phenobarbital Tablets, USP 97.2 mg (1½ grain): White, Round, Scored Tablet; Debossed WL on one side and 142 on the other side.
Bottles of 90 tablets NDC 75826-142-90 Bottles of 100 tablets NDC 75826-142-10 Bottles of 500 tablets NDC 75826-142-50 Bottles of 1000 tablets NDC 75826-142-00 Phenobarbital Tablets, USP 100 mg: White, Round, Scored Tablet; Debossed WL on one side and 143 on the other side. Bottles of 90 tablets NDC 75826-143-90 Bottles of 100 tablets NDC 75826-143-10 Bottles of 500 tablets NDC 75826-143-50 Bottles of 1000 tablets NDC 75826-143-00 Store at 20° to 25°C (68° to 77°F) [See USP Controlled Room Temperature]. Protect from light and moisture.
Dispense in a tight, light-resistant container as defined in the USP using a child-resistant closure.
📦 Storage and Handling ▾
Store at 20° to 25°C (68° to 77°F) [See USP Controlled Room Temperature]. Protect from light and moisture. Dispense in a tight, light-resistant container as defined in the USP using a child-resistant closure.
📋 Description ▾
DESCRIPTION The barbiturates are nonselective central nervous system (CNS) depressants primarily used as sedative-hypnotics. In subhypnotic doses, they are also used as anticonvulsants. The barbiturates and their sodium salts are subject to control under the Federal Controlled Substances Act.
Phenobarbital is a barbituric acid derivative for oral administration and occurs as a white, odorless, slightly bitter powder that is soluble in chloroform, freely soluble in alcohol or ether, and slightly soluble in water. Its saturated solution has a pH of about 5.6. Chemically, it is 5-ethyl-5-phenylbarbituric acid with the molecular formula C 12 H 12 N 2 O 3 (232.24).
The structural formula is as follows: Each Phenobarbital Tablet, USP contains 15 mg, 16.2 mg, 30 mg, 32.4 mg, 60 mg, 64.8 mg, 97.2 mg, or 100 mg of phenobarbital, USP. Inactive ingredients are as follows: Microcrystalline Cellulose; Lactose Monohydrate; Sodium Starch Glycolate, Type-A; Colloidal Silicon Dioxide; Magnesium Stearate
💬 Information for Patients ▾
Information for Patients Phenobarbital may impair the mental and/or physical abilities required for the performance of potentially hazardous tasks, such as driving a car or operating machinery. The patient should be cautioned accordingly.
⚠️ Precautions ▾
PRECAUTIONS General Precautions Barbiturates induce liver microsomal enzyme activity. This accelerates the biotransformation of various drugs and is probably part of the mechanism of the tolerance encountered with barbiturates. Phenobarbital, therefore, should be used with caution in patients with decreased liver function.
This drug should also be administered cautiously to patients with a history of drug dependence or abuse (see DRUG ABUSE AND DEPENDENCE ). Phenobarbital may decrease the potency of coumarin anticoagulants; therefore, patients receiving such concomitant therapy should have more frequent prothrombin determinations. As with other sedatives and hypnotics, elderly or debilitated patients may react to barbiturates with marked excitement, depression, or confusion.
The systemic effects of exogenous hydrocortisone and endogenous hydrocortisone (cortisol) may be diminished by phenobarbital. Thus, this product should be administered with caution to patients with borderline hypoadrenal function, regardless of whether it is of pituitary or of primary adrenal origin. Information for Patients Phenobarbital may impair the mental and/or physical abilities required for the performance of potentially hazardous tasks, such as driving a car or operating machinery.
The patient should be cautioned accordingly. Drug Interactions Phenobarbital in combination with alcohol, tranquilizers, and other central nervous system depressants has additive depressant effects, and the patient should be so advised. Patients taking this drug should be warned not to exceed the dosage recommended by their physician.
Toxic effects and fatalities have occurred following overdoses of phenobarbital alone and in combination with other central nervous system depressants. Caution should be exercised in prescribing unnecessarily large amounts of phenobarbital for patients who have a history of emotional disturbances or suicidal ideation or who have misused alcohol and other CNS drugs (see OVERDOSAGE ). Usage in Pregnancy Pregnancy Category B Reproduction studies have been performed in animals and have revealed no evidence of impaired fertility or harm to the fetus due to phenobarbital.
There are, however, no adequate and well-controlled studies in pregnant women. Because animal reproduction studies are not always predictive of human response, this drug should be used during pregnancy only if clearly needed and under the supervision of a physician . Nursing Mothers Caution should be exercised when phenobarbital is administered to a nursing woman.
🍼 Nursing Mothers ▾
Nursing Mothers Caution should be exercised when phenobarbital is administered to a nursing woman.
🔒 Drug Abuse and Dependence ▾
DRUG ABUSE AND DEPENDENCE Controlled Substance Phenobarbital is a Schedule IV drug. Dependence Prolonged, uninterrupted use of barbiturates (particularly the short-acting drugs), even in therapeutic doses, may result in psychic and physical dependence. Withdrawal symptoms due to physical dependence following chronic use of large doses of barbiturates may include delirium, convulsions, and death.
🔒 Controlled Substance ▾
Controlled Substance Phenobarbital is a Schedule IV drug.
📄 Package Label / Principal Display Panel ▾
label
Medicare Part D spend CMS · PART D · 2026 (Q1)
About this NDC listing & data coverage
Listed without an FDA application
This product's marketing category indicates it is marketed without an approved FDA application (no NDA, ANDA, or BLA on file). Having an NDC does not by itself establish FDA approval — the NDC Directory is a listing system, not an approval decision. Approval-linked data such as Orange Book therapeutic-equivalence ratings therefore does not apply.
What data is (and isn’t) available for this NDC — tap to expand
| NDC identity (package / product / labeler codes) | ✓ Available |
| Labeler | ✓ Available |
| Product & package description | ✓ Available |
| Marketing category & status | ✓ Available |
| Active ingredient / dosage form / route | ✓ Available |
| FDA label (SPL via DailyMed) | ✓ Available |
| Package photos | — Not published for this NDC No photo available yet for this listing. |
| Inactive ingredients (structured) | — Not published for this NDC The labeler did not submit a structured excipient list, or no SPL is available. |
| NADAC pharmacy acquisition price (CMS) | — Not published for this NDC CMS publishes NADAC only for NDCs reported in its retail-pharmacy survey. |
| Orange Book / therapeutic-equivalence data | — Not published for this NDC Applies only to products approved under an NDA/ANDA; many listings are out of scope. |
| HCPCS J-code billing crosswalk | — Not published for this NDC Most self-administered / retail products have no J-code — that is normal. |
| Medicaid utilization (CMS SDUD) | — Not published for this NDC CMS reports utilization only for NDCs with Medicaid claims above its privacy threshold. |