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  • phenobarbital
 

phenobarbital

Pronunciation: FEE noe BAR bi tal

Brand: Solfoton

Phenobarbital 100 mg-EXC

round, white, imprinted with EP 903

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Phenobarbital 100 mg-RAN

round, white, imprinted with RX 744

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Phenobarbital 16.2 mg-QUA

round, white, imprinted with 5011 V

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Phenobarbital 30 mg-GG

round, white, imprinted with West-Ward 450

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Phenobarbital 60 mg-EXC

round, white, imprinted with EP 902

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Phenobarbital 60 mg-LIL

round, white, imprinted with LILLY J37

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Phenobarbital 97.2 mg-QUA

elliptical, white, imprinted with 5014 V

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What is the most important information I should know about phenobarbital?

Multum nopreg

Do not use phenobarbital if you are pregnant. It could harm the unborn baby. Phenobarbital may also cause addiction or withdrawal symptoms in a newborn if the mother takes the medication during pregnancy.

Multum bcp

Phenobarbital can make birth control pills less effective. Ask your doctor about using a non-hormone method of birth control (such as a condom, diaphragm, spermicide) to prevent pregnancy while taking phenobarbital.

Multum emt

Phenobarbital may cause a severe allergic reaction. Stop taking phenobarbital and get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Multum donot

Do not stop using phenobarbital without first talking to your doctor, even if you feel better. You may have increased seizures if you stop using phenobarbital suddenly. You will need to use less and less before you stop the medication completely.

Some people using this medicine have engaged in activity such as driving, eating, or making phone calls and later having no memory of the activity. If this happens to you, stop taking phenobarbital and talk with your doctor about another treatment for your sleep disorder.

Multum habit

Phenobarbital may be habit-forming and should be used only by the person it was prescribed for. Keep the medication in a secure place where others cannot get to it.

What is phenobarbital?

Phenobarbital is in a group of drugs called barbiturates (bar-BIT-chur-ates). Phenobarbital slows the activity of your brain and nervous system.

Phenobarbital is used to treat or prevent seizures. It is also used short-term to treat insomnia, or as a sedative before surgery.

Phenobarbital may also be used for purposes not listed in this medication guide.

What should I discuss with my healthcare provider before taking phenobarbital?

Some people using this medicine have engaged in activity such as driving, eating, or making phone calls and later having no memory of the activity. If this happens to you, stop taking phenobarbital and talk with your doctor about another treatment for your sleep disorder.

Multum donot

You should not take this medication if you are allergic to phenobarbital or other barbiturates (Nembutal, Seconal, and others), or if you have:

  • porphyria;
  • severe liver disease;
  • a history of addiction to a barbiturate, sedative (Valium, Xanax, and others); or
  • severe asthma, chronic obstructive pulmonary disorder (COPD), or other breathing disorder.

To make sure you can safely take phenobarbital, tell your doctor if you have any of these other conditions:

  • temporary or chronic pain;
  • liver disease;
  • kidney disease;
  • pheochromocytoma (tumor of the adrenal gland);
  • a pituitary gland disorder;
  • a history of depression, mental illness, or suicide attempt; or
  • a history of drug or alcohol addiction.
Multum habit

Phenobarbital may be habit forming and should be used only by the person it was prescribed for. Never share phenobarbital with another person, especially someone with a history of drug abuse or addiction. Keep the medication in a place where others cannot get to it.

Multum nopreg

FDA pregnancy category D. Do not use phenobarbital if you are pregnant. It could harm the unborn baby. Phenobarbital may also cause addiction or withdrawal symptoms in a newborn if the mother takes the medication during pregnancy. Use effective birth control, and tell your doctor if you become pregnant during treatment.

Multum bcp

Phenobarbital can make birth control pills less effective. Ask your doctor about using a non-hormone method of birth control (such as a condom, diaphragm, spermicide) to prevent pregnancy while taking phenobarbital.

Multum nobrfeed

Phenobarbital can pass into breast milk and may harm a nursing baby. Do not use this medication without telling your doctor if you are breast-feeding a baby.

How should I take phenobarbital?

Take exactly as prescribed by your doctor. Do not take in larger or smaller amounts or for longer than recommended. Follow the directions on your prescription label.

Multum water

Take this medicine with a full glass of water.

If you are taking this medicine to treat insomnia, take it only at bedtime. Do not use phenobarbital for longer than 2 weeks to treat insomnia, unless your doctor has told you to.

Multum dizzy

Take phenobarbital only when you are getting ready for several hours of sleep. You may fall asleep very quickly after taking the medicine.

Do not change your dose of phenobarbital without your doctor's advice. Tell your doctor if the medication does not seem to work as well in treating your condition.

Multum finish

If you are taking phenobarbital to treat seizures, keep taking the medication even if you feel fine. You may have increased seizures or withdrawal symptoms if you stop using phenobarbital suddenly. You will need to use less and less before you stop the medication completely.

If you use this medication long-term, your blood will need to be tested often. Visit your doctor regularly.

Multum rt

Store at room temperature away from moisture and heat.

Keep track of the amount of medicine used from each new bottle. Phenobarbital is a drug of abuse and you should be aware if anyone is using your medicine improperly or without a prescription.

What happens if I miss a dose?

Take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose.

What happens if I overdose?

Multum emt

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222. An overdose of phenobarbital can be fatal.

Overdose symptoms may include slow or shallow breathing, blurred vision, extreme drowsiness, urinating less than usual or not at all, feeling light-headed, or fainting.

What should I avoid while taking phenobarbital?

Multum dizzy

This medication may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be alert.

Multum noalcohol

Drinking alcohol can increase some of the side effects of phenobarbital.

What are the possible side effects of phenobarbital?

Multum emt

Phenobarbital may cause a severe allergic reaction. Stop taking phenobarbital and get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Multum donot

Call your doctor at once if you have any of these serious side effects:

  • restless muscle movements in your eyes, tongue, jaw, or neck;
  • slow heartbeat, shallow breathing;
  • feeling light-headed, fainting;
  • a fever or a sore throat;
  • sores in your mouth;
  • easy bruising or bleeding; or
  • broken blood vessels under your skin.

Less serious side effects may include:

  • drowsiness or dizziness;
  • problems with memory or concentration;
  • excitement, irritability, aggression, or confusion (especially in children or older adults);
  • loss of balance or coordination;
  • nausea, constipation;
  • headache; or
  • "hangover" effect (drowsiness the day after a dose).

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What other drugs will affect phenobarbital?

Multum dizzy

Before using phenobarbital, tell your doctor if you regularly use other medicines that make you sleepy (such as other sleeping pills or seizure medicines, cold or allergy medicine, narcotic pain medicine, muscle relaxers, and medicine for depression or anxiety). They can add to sleepiness caused by phenobarbital.

Tell your doctor about all other medicines you use, especially:

  • a blood thinner such as warfarin (Coumadin, Jantoven);
  • doxycycline (Doryx, Oracea, Periostat, Vibramycin);
  • other seizure medications such as divalproex (Depakote), phenytoin (Dilantin), or valproic acid (Depakene);
  • an MAO inhibitor such as furazolidone (Furoxone), isocarboxazid (Marplan), phenelzine (Nardil), rasagiline (Azilect), selegiline (Eldepryl, Emsam, Zelapar), or tranylcypromine (Parnate);
  • griseofulvin (Grisactin, Fulvicin PG, Grifulvin V);
  • birth control pills or estrogen hormone replacement, including estrogen (Premarin), estradiol (Estrace, Femtrace, and others), progesterone (Progest, Prometrium), and others; or
  • steroids such as prednisone, dexamethasone (Decadron, Hexadrol) fluticasone (Flonase, Advair), methylprednisolone (Medrol), mometasone (Asmanex, Nasonex), and others.

This list is not complete and other drugs may interact with phenobarbital. Tell your doctor about all medications you use. This includes prescription, over-the-counter, vitamin, and herbal products. Do not start a new medication without telling your doctor.

Where can I get more information?

Your pharmacist can provide more information about phenobarbital.


Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.

Every effort has been made to ensure that the information provided by Cerner Multum, Inc. ('Multum') is accurate, up-to-date, and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. Multum information has been compiled for use by healthcare practitioners and consumers in the United States and therefore Multum does not warrant that uses outside of the United States are appropriate, unless specifically indicated otherwise. Multum's drug information does not endorse drugs, diagnose patients or recommend therapy. Multum's drug information is an informational resource designed to assist licensed healthcare practitioners in caring for their patients and/or to serve consumers viewing this service as a supplement to, and not a substitute for, the expertise, skill, knowledge and judgment of healthcare practitioners. The absence of a warning for a given drug or drug combination in no way should be construed to indicate that the drug or drug combination is safe, effective or appropriate for any given patient. Multum does not assume any responsibility for any aspect of healthcare administered with the aid of information Multum provides. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the drugs you are taking, check with your doctor, nurse or pharmacist.

Copyright 1996-2013 Cerner Multum, Inc. Version: 7.01. Revision date: 3/14/2011.

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