Phenobarbital Oral Tablet 100Mg Drug Medication Dosage Information
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Phenobarbital: Oral tablet (100mg)

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Drug Image file DrugItem_4008.JPG
Phenobarbital 97.2mg Tab
Qualitest Pharmaceuticals Inc
Pill Identification: 5014 V 
Drug Image file DrugItem_9546.JPG
Phenobarbital 100mg Tab
West-Ward Pharmaceutical
Pill Identification: WW 458 
Drug Image file DrugItem_15329.JPG
Phenobarbital 100mg Tab
West-Ward Pharmaceutical Corp
Pill Identification: WW 458 
Drug Image file DrugItem_5172.JPG
Phenobarbital 100mg Tab
Excellium Pharmaceutical Inc
Pill Identification: EP 903 

What is this Medicine?

PHENOBARBITAL (fee noe BAR bi tal) is a barbiturate. It may be used to help you sleep or may be used to help control seizures.

CVS Pharmacy Patient Statistics for Phenobarbital: Oral tablet(100mg)
Generic vs. Brand Name Usage*
*Brand contains same active ingredient but may not represent FDA-approved generic equivalent
Usage By Strength
In-Depth Information
Select a Medication

Phenobarbital 97.2mg Tablet

NDC: 006035168
  • Prescription Required
  • Federally Controlled Drug
    (CSA Schedule)




FDA approved for the following conditions:
Myoclonic Seizures, Tonic-clonic Seizures, Partial Seizures, Sedation Maintenance, Insomnia

Sometimes used for but not FDA approved for the following conditions:
Neonatal Abstinence Syndrome, Hyperbilirubinemia

Storage Information
Storage information not listed
Phenobarbital 97.2mg Tablet
Drug Image file DrugItem_4008.JPG
Qualitest Pharmaceuticals Inc
Pill Identification: 5014 V 
Shape: round
Color: white
Daily Life Interactions for Phenobarbital 97.2mg Tablet

Elements of your daily lifestyle may have an effect on the medications you are taking. Drug interactions can result in unwanted side effects, reduce the effectiveness of your medicine or possibly increase the action of a particular medicine.

Major Lifestyle Interaction
Alcohol and Phenobarbital 97.2mg Tablet(Phenobarbital)
Alcohol and CNS Depressants(Phenobarbital)
Avoid alcohol-containing drinks while taking this medicine. Using this drug along with alcohol can lead to serious side effects. You may feel drowsy or more tired when taking these drugs together. Do not drive or operate machinery until you know how this drug affects you, and especially if you are drinking alcohol-containing beverages. If you notice slurred speech, confusion, severe weakness, or difficulty breathing, contact your health care provider immediately.
Moderate Lifestyle Interaction
Marijuana and Phenobarbital 97.2mg Tablet(Phenobarbital)
Marijuana and Barbiturates(Phenobarbital)
Barbiturates can theoretically increase the elimination of Marijuana, Medical from the body. The side effect profile of Marijuana, Medical may be altered if you take Barbiturates. You may feel drowsy or more tired. Do not drive or operate machinery until you know how these drugs affect you. Contact your health care provider immediately if you notice slurred speech, confusion, increases heart rate, or palpitations while taking Marijuana, Medical.
Minor Lifestyle Interaction
Caffeine-containing Foods/Beverages and Phenobarbital 97.2mg Tablet(Phenobarbital)
Caffeine-containing Foods/Beverages and Barbiturates(Phenobarbital)
Barbiturates are commonly used for sedation, seizures or for sleep and include drugs like Amytal, Buticaps, Mysoline, Nembutal, Phenobarbital, and Seconal. Caffeine may cause sleeplessness, so if you are taking a barbiturate to help you sleep, you may wish to avoid taking caffeine and caffeine-containing foods like colas, coffee, teas, or chocolates within several hours prior to bedtime. Barbiturates may also decrease the actions of Caffeine; if you have a high intake of caffeinated foods or beverages you may experience a headache or irritability from decreased caffeine levels while taking these drugs until your body adjusts. If you take Caffeine for other purposes, notify your health care provider if you think Caffeine is not working as well for you.
Pregnancy & Lactation Information
FIRST Trimester

Class D - Adequate well-controlled or observational studies in pregnant women have demonstrated a risk to the fetus. However, the benefits of therapy may outweigh the potential risk. For example, the drug may be acceptable if needed in a life-threatening situation or serious disease for which safer drugs cannot be used or are ineffective.

SECOND Trimester

Class D - Adequate well-controlled or observational studies in pregnant women have demonstrated a risk to the fetus. However, the benefits of therapy may outweigh the potential risk. For example, the drug may be acceptable if needed in a life-threatening situation or serious disease for which safer drugs cannot be used or are ineffective.

THIRD Trimester

Class D - Adequate well-controlled or observational studies in pregnant women have demonstrated a risk to the fetus. However, the benefits of therapy may outweigh the potential risk. For example, the drug may be acceptable if needed in a life-threatening situation or serious disease for which safer drugs cannot be used or are ineffective.

Lactation

Caution - Not enough information is available to rule out harm to infants when this drug is taken by nursing mothers.


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