Generic name: Chlordiazepoxide hydrochloride with clidinium bromide.

Other brand names: Clindex, Clinoxide, Clipoxide, Lidox.

Librax is a benzodiazepine anti-anxiety and anticholinergic. It slows gastrointestinal tract action by reducing stomach acid production, and it relieves anxiety by depressing the central nervous system. 

Quick Facts About Librax


Used to treat peptic ulcer, irritable bowel syndrome, and inflammation of the colon and small intestine.

Librax Dosage

Take exactly as prescribed. Can become habit-forming; take no more than prescribed amount. To avoid withdrawal symptoms, gradually taper off when discontinuing, per your doctor’s instructions.

  • Usual adult dose: 1 or 2 capsules taken 3 or 4 times per day before meals and at bedtime. Seniors — doctor will prescribe lowest effective dose.
  • Usual child dose: not generally prescribed for children.
  • Missed dose: take as soon as possible, unless almost time for next dose. In that case, do not take missed dose; go back to regular schedule. Do not double doses.

Librax Side Effects

Overdose symptoms:

blurred vision, coma, confusion, constipation, excessive sleepiness, excessively dry mouth, slow reflexes, urinary difficulties. If you suspect an overdose, immediately seek medical attention.

Librax overdose may be fatal.

Side effects: blurred vision, changes in sex drive, confusion, constipation, drowsiness, dry mouth, fainting, lack of coordination, liver problems, minor menstrual irregularities, nausea, skin eruptions, swelling due to fluid retention, urinary difficulties, yellowing of skin and eyes.

No known less common or rare Librax side effects.


Inform your doctor before combining Librax with:

antidepressants such as Nardil and Parnate; blood thinners such as Coumadin; diarrhea medications such as Donnagel and Kaopectate; ketoconazole (Nizoral); major tranquilizers such as Stelazine and Thorazine; potassium supplements such as Micro-K. Benadryl and Valium taken with Librax may cause excessive drowsiness or other potentially dangerous side effects.

Alcohol may cause excessive drowsiness or other potentially dangerous side effects.

Special Cautions

If pregnant or planning to become pregnant, inform your doctor immediately. Increased risk of birth defects if taken during the first trimester of pregnancy.

Doctor will prescribe lowest effective dose for seniors to reduce side effects such as confusion, excessive drowsiness, and uncoordinated movements.

Not generally prescribed for children.

  • May cause drowsiness and impair your ability to drive a car or operate machinery. Do not take part in any activity that requires alertness.
  • Should not take if you have: bladder obstruction, enlarged prostate, glaucoma, or if sensitive to or allergic to this medication or any of its ingredients.
  • Use with extreme caution if you have had drug or alcohol abuse problems.
  • Doctor may test blood and liver functions if taking Librax for an extended period.

Note: provides accurate and independent information prescription pills, over-the-counter medicines and natural products. This material is provided for educational purposes only and is not intended for medical advice, diagnosis or treatment. If you have questions about  dosage, or Librax side effects, please contact your healthcare provider.