Oxazepam

Pronunciation: Not established.

Generic name: oxazepam
Drug class: Benzodiazepine
Form: Capsule
Route: Oral
Legal status: Legal/regulatory status was not explicitly established in the reviewed source (US FDA prescribing information for oxazepam capsules).

Availability and supply rules vary by country

Trade names by country: Canada

What oxazepam is and how it works

Oxazepam is a benzodiazepine used for the management of anxiety disorders, anxiety associated with depression, anxiety in older patients, and alcohol withdrawal, as well as the short-term relief of anxiety symptoms. It carries boxed warnings regarding concomitant use with opioids (profound sedation, respiratory depression, coma, death), risks of abuse/misuse/addiction, and life-threatening withdrawal upon abrupt discontinuation. (1)

Oxazepam is not indicated for psychoses. With concomitant opioid use, the label recommends prescribing the lowest effective dosages and minimum durations.

Mechanism of action: how oxazepam works

Oxazepam is a benzodiazepine. The exact mechanism of action was not detailed in the reviewed source. (1)

What oxazepam is used for

Anxiety disorders and short-term relief of anxiety symptoms

Oxazepam is indicated for the management of anxiety disorders and for the short-term relief of the symptoms of anxiety. (1)

Anxiety associated with depression

Oxazepam may be used for anxiety that is associated with depressive disorders. (1)

Anxiety in older patients

It is used for anxiety, tension, agitation, and irritability in older patients. (1)

Alcohol withdrawal

Oxazepam is indicated for acute tremulousness, inebriation, or anxiety associated with alcohol withdrawal. (1)

Before taking oxazepam

Do not take / not appropriate for

Tell the prescribing clinician if you have a history of hypersensitivity (allergic reaction) to oxazepam; this is a contraindication and the clinician will determine whether it is appropriate for you. (all products) (1)
Oxazepam is not indicated in psychoses. Tell the prescribing clinician about any psychotic condition so they can determine whether it is appropriate for you. (all indications) (1)

Tell your clinician about

If you are taking opioid pain medications, other sedatives, or alcohol, due to risk of profound sedation and respiratory depression.
If you have liver disease (specific dose adjustments may be necessary, though exact values are not detailed here).
If you are pregnant or planning pregnancy (especially late pregnancy, as it may cause neonatal sedation or withdrawal).
If you are breastfeeding (oxazepam passes into breast milk and may cause infant sedation).
If you are an older adult, as you may be more sensitive to effects like sedation and low blood pressure.
If you have a history of substance abuse, addiction, or dependence.
If you are being treated for any other condition or take other medications, including over-the-counter products.

(1)

How to take oxazepam

Take oxazepam exactly as prescribed by your clinician. The dose depends on your condition, age, and response.
For mild to moderate anxiety, the typical adult dose is 10–15 mg taken 3–4 times daily.
For severe anxiety, the typical dose is 15–30 mg taken 3–4 times daily.
For alcohol withdrawal, the typical dose is 15–30 mg taken 3–4 times daily.
For older patients, the usual starting dose is 10 mg three times daily; this may be cautiously increased to 15 mg three to four times daily if needed.
Any decision about reducing or stopping oxazepam should be made by your prescribing clinician, who will guide the process because abrupt discontinuation or rapid dosage reduction can cause life-threatening withdrawal reactions.
Avoid alcohol and other central nervous system depressants while taking oxazepam, unless specifically discussed with your clinician.

(1)

Procedures and treatment changes

Tell the treating team before surgery, procedures, or any medicine change. Do not alter treatment without the responsible clinician. (1)

Missed dose

Missed dose instructions were not established in the reviewed source.

Overdose

If overdose is suspected, seek emergency medical attention immediately. Overdose management includes general supportive measures such as intravenous fluids and airway management. Flumazenil may be considered by clinicians but carries a risk of seizures, especially in patients who are dependent on benzodiazepines or who have co-ingested pro-convulsant drugs. Do not attempt to treat yourself. (1)

Side effects

The most commonly reported side effect is transient mild drowsiness, often occurring during the first few days of therapy. Other effects include dizziness, vertigo, and headache. Syncope (fainting) occurs rarely.

Drowsiness

What to notice: Transient mild drowsiness, commonly during the first few days of therapy.

What to do: Contact your clinician if drowsiness persists or worsens. (1)

Dizziness or vertigo

What to notice: Dizziness or vertigo. Specific patient-recognizable symptom details were not established in the reviewed source.

What to do: Report persistent or severe symptoms to your clinician. (1)

Headache

What to notice: Mild to moderate headache.

What to do: Discuss with your clinician if troublesome or frequent. (1)

Syncope (fainting)

What to notice: Syncope (fainting). Specific patient-recognizable symptom details were not established in the reviewed source, which reports syncope as a rare adverse reaction.

What to do: Seek medical evaluation promptly if syncope occurs. (1)

Serious warnings

Profound sedation and respiratory depression when combined with opioids — emergency

Symptoms: Profound sedation, respiratory depression, coma, and death, per the boxed warning. Specific patient-recognizable symptom details beyond this were not established in the reviewed source.

Action: Seek emergency medical help immediately. Tell your clinician about all medicines you take, including opioids, so they can determine whether the combination is appropriate and arrange close monitoring. (1)

Abuse, misuse, and addiction — warning

Symptoms: Specific patient-recognizable symptom details were not established in the reviewed source, which describes a risk of abuse, misuse, and addiction that can lead to overdose or death.

Action: Contact your clinician promptly if you suspect dependence or misuse; let them determine how treatment should proceed. (1)

Withdrawal reactions — emergency

Symptoms: Specific patient-recognizable symptom details were not established in the reviewed source, which describes acute withdrawal reactions after abrupt discontinuation or rapid dosage reduction that can be life-threatening.

Action: Seek emergency medical care if you suspect this. Let the prescribing clinician determine how any dose changes or discontinuation should occur. (1)

Neonatal sedation and withdrawal — warning

Symptoms: If used late in pregnancy, the newborn may experience drowsiness, breathing difficulty, poor feeding, or withdrawal symptoms.

Action: Inform your clinician if you are or become pregnant. The baby may require medical support after birth. (1)

Interactions

Medicine or test	Effect	Action
Opioids	Concomitant use increases the risk of profound sedation, respiratory depression, coma, and death.	Tell the prescriber about all opioid medicines you take, so they can determine whether the combination is appropriate and arrange close monitoring. Seek emergency help if severe symptoms occur. (1)
Alcohol and other CNS depressants	Additive central nervous system depressant effects.	Tell your clinician about alcohol use and any other sedatives; let them advise on what is safe to combine with oxazepam. (1)

Pregnancy, breastfeeding, kidney/liver function, age

Older adults

Older patients may be more sensitive to the effects of oxazepam, including sedation, low blood pressure, and paradoxical excitation. The initial dose is usually 10 mg three times daily, with cautious increases up to 15 mg three to four times daily if needed. Close monitoring is essential. (1)

Pregnancy

Oxazepam use during late pregnancy can cause sedation (respiratory depression, lethargy, hypotonia) and/or withdrawal symptoms in the newborn. Contact your clinician promptly to discuss the risks and benefits; let them advise on whether and how to continue treatment. (1)

Breastfeeding

Oxazepam passes into breast milk and may cause sedation and feeding problems in the infant. Talk to your clinician about whether to continue breastfeeding. (1)

Hepatic impairment

The label indicates that dose adjustments may be necessary for patients with liver dysfunction, but the specific adjustment table was not captured during this research pass. Consult the full prescribing information for exact recommendations. (1)

Pediatric use

Pediatric dosing and use were not established in the reviewed source.

Not indicated in psychoses

Oxazepam is not approved for the treatment of psychotic disorders and should not be used for this purpose. (1)

Monitoring

Before starting

Assess for concomitant use of opioids, alcohol, or other CNS depressants, given the risks described in the boxed warnings.
Evaluate hepatic function, as dose adjustments may be necessary per the label.
Discuss pregnancy and breastfeeding status.

During treatment

Monitor for signs of respiratory depression, especially if combined with opioids.
In older patients, monitor for excessive sedation, hypotension, and paradoxical excitation.
Other specific monitoring schedules or protocols were not established in the reviewed source.

(1)

Storage

Store at 20–25°C (68–77°F); excursions permitted between 15–30°C. Further storage instructions were not established in the reviewed source.

Study the drug class: Benzodiazepines

Professional information

Clinician-facing context only. Use the complete current local prescribing information for all clinical decisions.

United States

Indication: Anxiety disorders and short-term relief of anxiety symptoms

Dose summary: For mild to moderate anxiety: 10–15 mg orally 3–4 times daily. For severe anxiety: 15–30 mg orally 3–4 times daily. For alcohol withdrawal: 15–30 mg orally 3–4 times daily. In older adults: initial dose 10 mg 3 times daily; may cautiously increase to 15 mg 3–4 times daily.

Renal context: Renal-adjustment information was not established in the reviewed source. (1)

Mechanism of action

Hepatic guidance

The label references dose-adjustment considerations for hepatic impairment, but specific values were not retrieved. Refer to comprehensive prescribing information for detailed guidance.

Overdose note

Management includes general supportive measures (IV fluids, airway management). Flumazenil may be considered but carries a seizure risk, especially in benzodiazepine-dependent patients or those who have ingested pro-convulsant agents. (1)

Frequently asked questions

Can I take oxazepam with my opioid pain medication?

Taking oxazepam with opioids can cause profound sedation, respiratory depression, coma, and death. Tell the prescriber about all opioid medicines you take so they can determine whether the combination is appropriate and prescribe the lowest effective dosages and minimum durations. Seek emergency help if you experience trouble breathing or excessive sleepiness. (1)

Is oxazepam addictive?

Yes, oxazepam has a risk of abuse, misuse, and addiction, which can lead to overdose or death. It should be used only as prescribed. Tell your clinician if you have a history of substance abuse. (1)

What happens if I stop taking oxazepam suddenly?

Abrupt discontinuation or rapid dosage reduction after continued use may cause acute withdrawal reactions, which can be life-threatening. Always follow your clinician's instructions for any dose reduction. (1)

Can I drink alcohol while taking oxazepam?

Alcohol may have additive central-nervous-system-depressant effects with oxazepam. Tell your clinician about alcohol use and any other sedatives so they can advise on safe combinations. (1)

Can oxazepam be used during pregnancy?

Using oxazepam late in pregnancy may cause the newborn to have sedation or withdrawal symptoms. Contact your clinician promptly to discuss the risks; let them advise on whether to continue or stop. (1)

What is the mechanism of action of oxazepam?