Librium (Chlordiazepoxide) Patient Information

Find out why Librium is prescribed, side effects of Librium, Librium warnings, effects of Librium during pregnancy, more - in plain English.

Generic name: Chlordiazepoxide
Brand name: Librium, Libritabs

Librium Pronounced: LIB-ree-um

Librium (chlordiazepoxide) Full Prescribing Information

Why is Librium prescribed?

Librium is used in the treatment of anxiety disorders. It is also prescribed for short-term relief of the symptoms of anxiety, symptoms of withdrawal in acute alcoholism, and anxiety and apprehension before surgery. It belongs to a class of drugs known as benzodiazepines.

Most important fact about Librium

Librium is habit-forming and you can become dependent on it. You could experience withdrawal symptoms if you stopped taking it abruptly (See "What side effects may occur?"). Discontinue or change your dose only on advice of your doctor.

How should you take Librium?

Take this medication exactly as prescribed.

--If you miss a dose...

Take it as soon as you remember if it is within an hour or so of your scheduled time. If you do not remember until later, skip the dose you missed and go back to your regular schedule. Do not take 2 doses at once.

--Storage instructions...

Store away from heat, light, and moisture.

What side effects may occur with Librium?

Side effects cannot be anticipated. If any develop or change in intensity, inform your doctor as soon as possible. Only your doctor can determine if it is safe for you to continue taking Librium.

  • Side effects of Librium may include: Confusion, constipation, drowsiness, fainting, increased or decreased sex drive, liver problems, lack of muscle coordination, minor menstrual irregularities, nausea, skin rash or eruptions, swelling due to fluid retention, yellow eyes and skin

  • Side effects due to rapid decrease or abrupt withdrawal from Librium include: Abdominal and muscle cramps, convulsions, exaggerated feeling of depression, sleeplessness, sweating, tremors, vomiting

Why should this drug not be prescribed?


If you are sensitive to or have ever had an allergic reaction to Librium or similar tranquilizers, you should not take this medication.

Anxiety or tension related to everyday stress usually does not require treatment with Librium. Discuss your symptoms thoroughly with your doctor.

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Special warnings about Librium

Librium may cause you to become drowsy or less alert; therefore, you should not drive or operate dangerous machinery or participate in any hazardous activity that requires full mental alertness until you know how you react to this drug.

If you are severely depressed or have suffered from severe depression, consult with your doctor before taking this medication.

This drug may cause children to become less alert.

If you have a hyperactive, aggressive child taking Librium, inform your doctor if you notice contrary reactions such as excitement, stimulation, or acute rage.

Consult with your doctor before taking Librium if you are being treated for porphyria (a rare metabolic disorder) or kidney or liver disease.

Possible food and drug interactions when taking Librium

Librium is a central nervous system depressant and may intensify the effects of alcohol or have an additive effect. Do not drink alcohol while taking this medication.

If Librium is taken with certain other drugs, the effects of either can be increased, decreased, or altered. It is especially important to check with your doctor before combining Librium with the following:

Antacids such as Maalox and Mylanta
Antidepressant drugs known as MAO inhibitors, including Nardil and Parnate
Barbiturates such as phenobarbital Blood-thinning drugs such as Coumadin
Cimetidine (Tagamet)
Disulfiram (Antabuse)
Levodopa (Larodopa)
Major tranquilizers such as Stelazine and Thorazine
Narcotic pain relievers such as Demerol and Percocet
Oral contraceptives

Special information if you are pregnant or breastfeeding

Do not take Librium if you are pregnant or planning to become pregnant. There may be an increased risk of birth defects. This drug may appear in breast milk and could affect a nursing infant. If the medication is essential to your health, your doctor may advise you to discontinue breastfeeding until your treatment with the drug is finished.

Recommended dosage for Librium


Mild or Moderate Anxiety

The usual dose is 5 or 10 milligrams, 3 or 4 times a day.

Severe Anxiety

The usual dose is 20 to 25 milligrams, 3 or 4 times a day.

Apprehension and Anxiety before Surgery

On days preceding surgery, the usual dose is 5 to 10 milligrams, 3 or 4 times a day.

Withdrawal Symptoms of Acute Alcoholism

The usual starting oral dose is 50 to 100 milligrams; the doctor will repeat this dose, up to a maximum of 300 milligrams per day, until agitation is controlled. The dose will then be reduced as much as possible.


The usual dose for children 6 years of age and older is 5 milligrams, 2 to 4 times per day. Some children may need to take 10 milligrams, 2 or 3 times per day. The drug is not recommended for children under 6.


Your doctor will limit the dose to the smallest effective amount in order to avoid oversedation or lack of coordination. The usual dose is 5 milligrams, 2 to 4 times per day.


Any medication taken in excess can cause symptoms of overdose. If you suspect a Librium overdose, seek medical attention immediately.

  • The symptoms of Librium overdose may include: Coma, confusion, sleepiness, slow reflexes

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Librium (chlordiazepoxide) Full Prescribing Information

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APA Reference
Staff, H. (2009, January 3). Librium (Chlordiazepoxide) Patient Information, HealthyPlace. Retrieved on 2024, June 14 from

Last Updated: January 24, 2019

Medically reviewed by Harry Croft, MD

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