Medically reviewed by Drugs.com. Last updated on May 14, 2022.
Warning: Risks From Concomitant Use With Opioids; Abuse, Misuse, and Addiction; and Dependence and Withdrawal ReactionsConcomitant use of benzodiazepines and opioids may result in profound sedation, respiratory depression, coma, and death. Reserve concomitant prescribing of these drugs in patients for whom alternative treatment options are inadequate. Limit dosages and durations to the minimum required. Follow patients for signs and symptoms of respiratory depression and sedation.The use of benzodiazepines, include chlordiazepoxide hydrochloride, a component of Librax(R), exposes users to risks of abuse, misuse, and addiction, which can lead to overdose or death. Abuse and misuse of benzodiazepines commonly involve concomitant use of other medications, alcohol, and/or illicit substances, which is associated with an increased frequency of serious adverse outcomes. Before prescribing chlordiazepoxide hydrochloride/clidinium bromide and throughout treatment, assess each patient's risk for abuse, misuse, and addiction.The continued use of benzodiazepines, including chlordiazepoxide hydrochloride/clidinium bromide, may lead to clinically significant physical dependence. The risks of dependence and withdrawal increase with longer treatment duration and higher daily dose. Abrupt discontinuation or rapid dosage reduction of chlordiazepoxide hydrochloride/clidinium bromide after continued use may precipitate acute withdrawal reactions, which can be life-threatening. To reduce the risks of withdrawal reactions, use a gradual taper to discontinue chlordiazepoxide hydrochloride/clidinium bromide or reduce the dosage .
Commonly used brand name(s)
In the U.S.
Available Dosage Forms:
Therapeutic Class: Antimuscarinic Combination
Pharmacologic Class: Chlordiazepoxide
Uses for Librax
Chlordiazepoxide and clidinium combination is used in combination with other medicines to treat stomach or bowel problems including peptic ulcers, irritable bowel syndrome (IBS), and enterocolitis (inflammation of the colon and small intestines).
Chlordiazepoxide is a benzodiazepine. Benzodiazepines belong to the group of medicines called central nervous system (CNS) depressants, which are medicines that slow down the nervous system. Clidinium is an anticholinergic agent. It reduces stomach acid and decreases bowel spasms.
This medicine is available only with your doctor's prescription.
Before using Librax
In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For this medicine, the following should be considered:
Tell your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.
Appropriate studies have not been performed on the relationship of age to the effects of chlordiazepoxide and clidinium combination in the pediatric population. Safety and efficacy have not been established.
Appropriate studies performed to date have not demonstrated geriatric-specific problems that would limit the usefulness of chlordiazepoxide and clidinium combination in the elderly. However, elderly patients are more likely to have serious unwanted effects (eg, severe drowsiness, confusion, clumsiness, or unsteadiness), which may require caution in patients receiving this medicine.
There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.
Interactions with medicines
Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. When you are taking this medicine, it is especially important that your healthcare professional know if you are taking any of the medicines listed below. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.
Using this medicine with any of the following medicines is not recommended. Your doctor may decide not to treat you with this medication or change some of the other medicines you take.
- Potassium Citrate
Using this medicine with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.
- Calcium Oxybate
- Chloral Hydrate
- Gabapentin Enacarbil
- Glycopyrronium Tosylate
- Magnesium Oxybate
- Morphine Sulfate Liposome
- Potassium Oxybate
- Ropeginterferon Alfa-2b-njft
- Secretin Human
- Sodium Oxybate
Using this medicine with any of the following medicines may cause an increased risk of certain side effects, but using both drugs may be the best treatment for you. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.
- St John's Wort
Interactions with food/tobacco/alcohol
Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.
Using this medicine with any of the following may cause an increased risk of certain side effects but may be unavoidable in some cases. If used together, your doctor may change the dose or how often you use this medicine, or give you special instructions about the use of food, alcohol, or tobacco.
Other medical problems
The presence of other medical problems may affect the use of this medicine. Make sure you tell your doctor if you have any other medical problems, especially:
- Alcohol or drug abuse or dependence, history of or
- Bleeding problems or
- Depression, history of or
- Eye or vision problems or
- Mental health problems, history of or
- Trouble urinating or
- Weakened physical condition—Use with caution. May make these conditions worse.
- Enlarged prostate or
- Glaucoma or
- Urinary bladder blockage—Should not be used in patients with these conditions.
- Kidney disease or
- Liver disease—Use with caution. The effects may be increased because of slower removal of the medicine from the body.
Proper use of Librax
Take this medicine exactly as directed by your doctor to benefit your condition as much as possible. Do not take more of it, do not take it more often, and do not take it for a longer time than your doctor ordered. If too much of this medicine is taken for a long time, it may become habit-forming (causing mental or physical dependence) or cause an overdose.
This medicine should come with a Medication Guide. Read and follow the instructions carefully. Ask your doctor if you have any questions.
Take this medicine before meals and at bedtime.
Swallow the capsule whole. Do not crush, break, or chew it.
The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so.
The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.
- For oral dosage form (capsules):
- For the treatment of peptic ulcer, IBS, or enterocolitis:
- Adults—1 or 2 capsules 3 or 4 times a day. Your doctor may adjust your dose as needed and tolerated.
- Older adults—2 capsules per day. Your doctor may adjust your dose as needed and tolerated.
- Children—Use and dose must be determined by your doctor.
- For the treatment of peptic ulcer, IBS, or enterocolitis:
If you miss a dose of this medicine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses.
Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing.
Keep out of the reach of children.
Do not keep outdated medicine or medicine no longer needed.
Ask your healthcare professional how you should dispose of any medicine you do not use.
Precautions while using Librax
It is very important that your doctor check your progress at regular visits to make sure this medicine is working properly. Blood tests may be needed to check for unwanted effects.
Using this medicine while you are pregnant may cause serious unwanted effects in your newborn baby. Tell your doctor right away if you think you are pregnant or if you plan to become pregnant while using this medicine.
This medicine may be habit-forming. If you feel that the medicine is not working as well, do not use more than your prescribed dose. Call your doctor for instructions.
This medicine may cause some people, especially elderly patients, to become drowsy, dizzy, lightheaded, clumsy or unsteady, or less alert than they are normally. Make sure you know how you react to this medicine before you drive, use machines, or do anything else that could be dangerous if you are not alert or able to think or see well.
Check with your doctor before using this medicine with alcohol or other medicines that affect the central nervous system (CNS). The use of alcohol or other medicines that affect the CNS with Librax® may worsen the side effects of this medicine, such as dizziness, irregular, fast or slow, or shallow breathing, poor concentration, drowsiness, unusual dreams, and trouble with sleeping. Some examples of medicines that affect the CNS are antihistamines or medicine for allergies or colds, sedatives, tranquilizers, or sleeping medicines, medicine for depression, medicine for anxiety, prescription pain medicine or narcotics, medicine for attention deficit and hyperactivity disorder, medicine for seizures or barbiturates, muscle relaxants, or anesthetics, including some dental anesthetics.
If you develop any unusual and strange thoughts or behavior while you are taking chlordiazepoxide, be sure to discuss it with your doctor. Some changes that have occurred in people taking this medicine are like those seen in people who drink alcohol and then act in a manner that is not normal. Other changes may be more unusual and extreme, such as confusion, worsening of depression, suicidal thoughts, and unusual excitement, nervousness, or irritability.
Do not suddenly stop taking this medicine without checking first with your doctor. Your doctor may want you to gradually reduce the amount you are using before stopping it completely. This may help prevent a worsening of your condition and reduce the possibility of withdrawal symptoms, including headache, nausea, general feeling of discomfort or illness, seizures, stomach or muscle cramps, tremors, or unusual behavior.
Symptoms of an overdose include: blurred vision, change in consciousness, confusion, difficult urination, difficulty having a bowel movement, dry mouth, lack of coordination, loss of consciousness, sleepiness or unusual drowsiness. Call your doctor right away if you notice these symptoms.
Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal or vitamin supplements.
Librax side effects
Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor immediately if any of the following side effects occur:
Incidence not known
- clay-colored stools
- cough or hoarseness
- dark urine
- difficulty with speaking
- fever with or without chills
- general feeling of tiredness or weakness
- itching or rash
- loss of appetite
- loss of balance control
- lower back or side pain
- muscle trembling, jerking, or stiffness
- painful or difficult urination
- pale skin
- shakiness and unsteady walk
- shuffling walk
- sore throat
- sores, ulcers, or white spots on the lips or in the mouth
- stiffness of the limbs
- stomach pain
- twisting movements of the body
- uncontrolled movements, especially of the face, neck, and back
- unpleasant breath odor
- unsteadiness, trembling, or other problems with muscle control or coordination
- unusual bruising or bleeding
- unusual tiredness or weakness
- vomiting of blood
- yellow eyes or skin
Get emergency help immediately if any of the following symptoms of overdose occur:
Symptoms of overdose
- Blurred vision
- change in consciousness
- difficulty having a bowel movement (stool)
- dry mouth
- lack of coordination
- loss of consciousness
- sleepiness or unusual drowsiness
Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
Incidence not known
- Inability to have or keep an erection
- increase or loss in sexual ability, desire, drive, or performance
- increased or decreased interest in sexual intercourse
- menstrual changes
- skin blisters
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.
Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.
More about Librax (chlordiazepoxide / clidinium)
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- Drug class: anticholinergics/antispasmodics
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