Oxabenz

What are the side effects you encounter while taking this medicine?
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Oxabenz uses


WARNING: RISKS FROM CONCOMITANT USE WITH OPIOIDS

Concomitant use of benzodiazepines and opioids may result in profound sedation, respiratory depression, coma, and death.

DESCRIPTION

Oxabenz is the first of a chemical series of compounds, the 3-hydroxybenzodiazepinones. A therapeutic agent providing versatility and flexibility in control of common emotional disturbances, this product exerts prompt action in a wide variety of disorders associated with anxiety, tension, agitation and irritability, and anxiety associated with depression. In tolerance and toxicity studies on several animal species, this product reveals significantly greater safety factors than related compounds (chlordiazepoxide and diazepam) and manifests a wide separation of effective doses and doses inducing side effects.

Oxabenz is 7 chloro-1,3-dihydro-3-hydroxy-5-phenyl-2H-1,4-benzodiazepin-2-one and has the following structural formula:

Oxabenz is a white crystalline powder.

Each capsule for oral administration contains 10 mg, 15 mg or 30 mg of Oxabenz.

Inactive ingredients: hypromellose, lactose (monohydrate), magnesium stearate and corn starch. The capsule shells and imprinting inks contain: gelatin, titanium dioxide, shellac, black iron oxide, propylene glycol and D&C Red #7 Calcium Lake E180. The 10 mg capsules also contain: methylparaben, butylparaben, propylparaben, benzyl alcohol, sodium propionate, edetate calcium disodium and sodium lauryl sulfate. The 15 mg ink also contains: D&C Yellow #10 Aluminum Lake. The 30 mg ink also contains: FD&C Red #40 Aluminum Lake #129 and FD&C Blue #2 Aluminum Lake #132.

Oxabenz Chemical Structure

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CLINICAL PHARMACOLOGY

Pharmacokinetic testing in 12 volunteers demonstrated that a single 30 mg dose of a capsule, tablet or suspension will result in an equivalent extent of absorption. For the capsule and tablet, peak plasma levels averaged 450 mg/mL and were observed to occur about 3 hours after dosing. The mean elimination half-life for Oxabenz was approximately 8.2 hours (range 5.7 to 10.9 hours).

This product has a single, major inactive metabolite in man, a glucuronide excreted in urine.

Age (<80 years old) does not appear to have a clinically significant effect on Oxabenz kinetics. A statistically significant increase in elimination half-life in the very elderly (>80 years of age) as compared to younger subjects has been reported, due to a 30% increase in volume of distribution, as well as a 50% reduction in unbound clearance of Oxabenz in the very elderly (see PRECAUTIONS: Geriatric Use ).

ANIMAL PHARMACOLOGY AND TOXICOLOGY

In mice, Oxabenz exerts an anticonvulsant (anti-pentylenetetrazol) activity at 50-percent-effective doses of about 0.6 mg/kg orally. (Such anticonvulsant activity of benzodiazepines correlates with their tranquilizing properties.) To produce ataxia (rotabar test) and sedation (abolition of spontaneous motor activity), the 50-percent-effective doses of this product are greater than 5 mg/kg orally. Thus, about ten times the therapeutic (anticonvulsant) dose must be given before ataxia ensues, indicating a wide separation of effective doses and doses inducing side effects.

In evaluation of antianxiety activity of compounds, conflict behavioral tests in rats differentiate continuous response for food in the presence of anxiety-provoking stress (shock) from drug-induced motor incoordination. This product shows significant separation of doses required to relieve anxiety and doses producing sedation or ataxia. Ataxia-producing doses exceed those of related CNS-acting drugs.

Acute oral LD50 in mice is greater than 5000 mg/kg, compared to 800 mg/kg for a related compound (chlordiazepoxide).

Subacute toxicity studies in dogs for four weeks at 480 mg/kg daily showed no specific changes; at 960 mg/kg, two out of eight died with evidence of circulatory collapse. This wide margin of safety is significant compared to chlordiazepoxide HCl, which showed nonspecific changes in six dogs at 80 mg/kg. On chlordiazepoxide, two out of six died with evidence of circulatory collapse at 127 mg/kg, and six out of six died at 200 mg/kg daily. Chronic toxicity studies of Oxabenz in dogs at 120 mg/kg/day for 52 weeks produced no toxic manifestation.

Fatty metamorphosis of the liver has been noted in six-week toxicity studies in rats given this product at 0.5% of the diet. Such accumulations of fat are considered reversible, as there is no liver necrosis or fibrosis. Breeding studies in rats through two successive litters did not produce fetal abnormality.

Oxabenz has not been adequately evaluated for mutagenic activity.

In a carcinogenicity study, Oxabenz was administered with diet to rats for two years. Male rats receiving 30 times the maximum human dose showed a statistical increase, when compared to controls, in benign thyroid follicular cell tumors, testicular interstitial cell adenomas, and prostatic adenomas. An earlier published study reported that mice fed dietary dosages of 35 or 100 times the human daily dose of Oxabenz for 9 months developed a dose-related increase in liver adenomas.1 In an independent analysis of some of the microscopic slides from this mouse study, several of these tumors were classified as liver carcinomas. At this time, there is no evidence that clinical use of Oxabenz is associated with tumors.

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INDICATIONS

Oxabenz is indicated for the management of anxiety disorders or for the short-term relief of the symptoms of anxiety. Anxiety or tension associated with the stress of everyday life usually does not require treatment with an anxiolytic.

Anxiety associated with depression is also responsive to Oxabenz therapy.

This product has been found particularly useful in the management of anxiety, tension, agitation and irritability in older patients.

Alcoholics with acute tremulousness, inebriation, or with anxiety associated with alcohol withdrawal are responsive to therapy.

The effectiveness of Oxabenz in long-term use, that is, more than 4 months, has not been assessed by systematic clinical studies. The physician should periodically reassess the usefulness of the drug for the individual patient.

CONTRAINDICATIONS

History of previous hypersensitivity reaction to Oxabenz. Oxabenz is not indicated in psychoses.

WARNINGS

Risks from Concomitant Use with Opioids: Concomitant use of benzodiazepines, including Oxabenz, and opioids may result in profound sedation, respiratory depression, coma, and death. Because of these risks, reserve concomitant prescribing of these drugs for use in patients for whom alternative treatment options are inadequate.

Observational studies have demonstrated that concomitant use of opioid analgesics and benzodiazepines increases the risk of drug-related mortality compared to use of opioids alone. If a decision is made to prescribe Oxabenz concomitantly with opioids, prescribe the lowest effective dosages and minimum durations of concomitant use, and follow patients closely for signs and symptoms of respiratory depression and sedation. In patients already receiving an opioid analgesic, prescribe a lower initial dose of Oxabenz than indicated in the absence of an opioid and titrate based on clinical response. If an opioid is initiated in a patient already taking Oxabenz, prescribe a lower initial dose of the opioid and titrate based upon clinical response.

Advise both patients and caregivers about the risks of respiratory depression and sedation when Oxabenz is used with opioids. Advise patients not to drive or operate heavy machinery until the effects of concomitant use with the opioid have been determined.

As with other CNS-acting drugs, patients should be cautioned against driving automobiles or operating dangerous machinery until it is known that they do not become drowsy or dizzy on Oxabenz therapy.

Patients should be warned that the effects of alcohol or other CNS-depressant drugs may be additive to those of Oxabenz, possibly requiring adjustment of dosage or elimination of such agents.

Physical and Psychological Dependence

Withdrawal symptoms, similar in character to those noted with barbiturates and alcohol (convulsions, tremor, abdominal and muscle cramps, vomiting, and sweating), have occurred following abrupt discontinuance of Oxabenz. The more severe withdrawal symptoms have usually been limited to those patients who received excessive doses over an extended period of time. Generally milder withdrawal symptoms (e.g., dysphoria and insomnia) have been reported following abrupt discontinuance of benzodiazepines taken continuously at therapeutic levels for several months. Consequently, after extended therapy, abrupt discontinuation should generally be avoided and a gradual dosage-tapering schedule followed. Addiction-prone individuals (such as drug addicts or alcoholics) should be under careful surveillance when receiving Oxabenz or other psychotropic agents because of the predisposition of such patients to habituation and dependence.

USE IN PREGNANCY

An increased risk of congenital malformations associated with the use of minor tranquilizers (chlordiazepoxide, diazepam, and meprobramate) during the first trimester of pregnancy has been suggested in several studies. Oxabenz, a benzodiazepine derivative, has not been studied adequately to determine whether it, too, may be associated with an increased risk of fetal abnormality. Because use of these drugs is rarely a matter of urgency, their use during this period should almost always be avoided. The possibility that a woman of childbearing potential may be pregnant at the time of institution of therapy should be considered. Patients should be advised that if they become pregnant during therapy or intend to become pregnant, they should communicate with their physician about the desirability of discontinuing the drug.

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PRECAUTIONS

General

Although hypotension has occurred only rarely, Oxabenz should be administered with caution to patients in whom a drop in blood pressure might lead to cardiac complications. This is particularly true in the elderly patient.

Information for Patients

To assure the safe and effective use of Oxabenz, patients should be informed that, since benzodiazepines may produce psychological and physical dependence, it is advisable that they consult with their physician before either increasing the dose or abruptly discontinuing this drug.

Drug Interactions

The concomitant use of benzodiazepines and opioids increases the risk of respiratory depression because of actions at different receptor sites in the CNS that control respiration. Benzodiazepines interact at GABAA sites and opioids interact primarily at mu receptors. When benzodiazepines and opioids are combined, the potential for benzodiazepines to significantly worsen opioid-related respiratory depression exists. Limit dosage and duration of concomitant use of benzodiazepines and opioids, and monitor patients closely for respiratory depression and sedation.

Pediatric Use

Safety and effectiveness in pediatric patients under 6 years of age have not been established. Absolute dosage for pediatric patients 6 to 12 years of age is not established.

Geriatric Use

Clinical studies of Oxabenz were not adequate to determine whether subjects aged 65 and over respond differently than younger subjects. Age (<80 years old) does not appear to have a clinically significant effect on Oxabenz kinetics (see CLINICAL PHARMACOLOGY ).

Clinical circumstances, some of which may be more common in the elderly, such as hepatic or renal impairment, should be considered. Greater sensitivity of some older individuals to the effects of Oxabenz (e.g., sedation, hypotension, paradoxical excitation) cannot be ruled out (see PRECAUTIONS: General ; see ADVERSE REACTIONS ). In general, dose selection for Oxabenz for elderly patients should be cautious, usually starting at the lower end of the dosing range (see DOSAGE AND ADMINISTRATION ).

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ADVERSE REACTIONS

The necessity for discontinuation of therapy due to undesirable effects has been rare. Transient mild drowsiness is commonly seen in the first few days of therapy. If it persists, the dosage should be reduced. In few instances, dizziness, vertigo, headache and rarely syncope have occurred either alone or together with drowsiness. Mild paradoxical reactions; i.e., excitement, stimulation of affect, have been reported in psychiatric patients; these reactions may be secondary to relief of anxiety and usually appear in the first two weeks of therapy.

Other side effects occurring during Oxabenz therapy include rare instances of minor diffuse skin rashes-morbilliform, urticarial, and maculopapular, nausea, lethargy, edema, slurred speech, tremor, and altered libido. Such side effects have been infrequent and are generally controlled with reduction of dosage. A case of an extensive fixed drug eruption also has been reported.

Although rare, leukopenia and hepatic dysfunction including jaundice have been reported during therapy. Periodic blood counts and liver-function tests are advisable. Ataxia with Oxabenz has been reported in rare instances and does not appear to be specifically related to dose or age.

Although the following side reactions have not as yet been reported with Oxabenz, they have occurred with related compounds (chlordiazepoxide and diazepam): paradoxical excitation with severe rage reactions, hallucinations, menstrual irregularities, change in EEG pattern, blood dyscrasias including agranulocytosis, blurred vision, diplopia, incontinence, stupor, disorientation, fever and euphoria.

Transient amnesia or memory impairment has been reported in association with the use of benzodiazepines.

OVERDOSAGE

In the management of overdosage with any drug, it should be born in mind that multiple agents may have been taken.

Symptoms

Overdosage of benzodiazepines is usually manifested by varying degrees of central nervous system depression ranging from drowsiness to coma. In mild cases, symptoms include drowsiness, mental confusion and lethargy. In more serious cases, and especially when other drugs or alcohol were ingested, symptoms may include ataxia, hypotonia, hypotension, hypnotic state, stage one to three (3) coma, and very rarely, death.

Management

Induced vomiting and/or gastric lavage should be undertaken, followed by general supportive care, monitoring of vital signs, and close observation of the patient. Hypotension, though unlikely, usually may be controlled with norepinephrine bitartrate injection. The value of dialysis has not been adequately determined for Oxabenz.

The benzodiazepine antagonist flumazenil may be used in hospitalized patients as an adjunct to, not as a substitute for, proper management of benzodiazepine overdose. The prescriber should be aware of a risk of seizure in association with flumazenil treatment, particularly in long-term benzodiazepine users and in cyclic antidepressant overdose. The complete flumazenil package insert including “CONTRAINDICATIONS,” “WARNINGS,” and “PRECAUTIONS” should be consulted prior to use.

DOSAGE AND ADMINISTRATION

Because of the flexibility of this product and the range of emotional disturbances responsive to it, dosage should be individualized for maximum beneficial effects.


Oxabenz


Usual Dose


Mild-to-moderate anxiety, with associated tension, irritability, agitation or related symptoms of functional origin or secondary to organic disease


10 to 15 mg, 3 or 4 times daily


Severe anxiety syndromes, agitation, or anxiety associated with depression


15 to 30 mg, 3 or 4 times daily


Older patients with anxiety, tension, irritability and agitation


Initial

Dosage: 10 mg, 3 times daily.

If necessary, increase cautiously to 15 mg, 3 or 4 times daily


Alcoholics with acute inebriation, tremulousness, or anxiety on withdrawal


15 to 30 mg, 3 or 4 times daily


This product is not indicated in pediatric patients under 6 years of age. Absolute dosage for pediatric patients 6 to 12 years of age is not established.

HOW SUPPLIED

Oxabenz Capsules, USP are available as:

10 mg: white capsules, imprinted GG 505 in black and pink ink bands and are supplied as:

NDC 0781-2809-01 bottles of 100 capsules

NDC 0781-2809-05 bottles of 500 capsules

NDC 0781-2809-10 bottles of 1000 capsules

15 mg: white capsules, imprinted GG 506 in black and red ink bands and are supplied as:

NDC 0781-2810-01 bottles of 100 capsules

NDC 0781-2810-05 bottles of 500 capsules

NDC 0781-2810-10 bottles of 1000 capsules

30 mg: white capsules, imprinted GG 507 in black and maroon ink bands and are supplied as:

NDC 0781-2811-01 bottles of 100 capsules

NDC 0781-2811-05 bottles of 500 capsules

NDC 0781-2811-10 bottles of 1000 capsules

Store at 20° to 25°C (68° to 77°F). Protect from moisture.

Dispense in a tight, light-resistant container.

REFERENCE

MEDICATION GUIDE

Oxabenz (ox-AZE-e-pam) Capsules, C-IV

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


What is Oxabenz?


Do not take Oxabenz if you:


Before you take Oxabenz, tell your healthcare provider about all of your medical conditions, including if you:


Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements.

Taking Oxabenz with certain other medicines can cause side effects or affect how well Oxabenz or the other medicines work. Do not start or stop other medicines without talking to your healthcare provider.

How should I take Oxabenz?


What should I avoid while taking Oxabenz?


What are the possible side effects of Oxabenz?

Oxabenz may cause serious side effects, including:


The most common side effects of Oxabenz include:


These are not all the possible side effects of Oxabenz. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

How should I store Oxabenz?


General information about the safe and effective use of Oxabenz.

Medicines are sometimes prescribed for purposes other than those listed in a Medication Guide. Do not use Oxabenz for a condition for which it was not prescribed. Do not give Oxabenz to other people, even if they have the same symptoms that you have. It may harm them. You can ask your pharmacist or healthcare provider for information about Oxabenz that is written for health professionals.

What are the ingredients in Oxabenz?

Active ingredient: Oxabenz

Inactive ingredients: hypromellose, lactose (monohydrate), magnesium stearate and corn starch. The capsule shells and imprinting inks contain: gelatin, titanium dioxide, shellac, black iron oxide, propylene glycol and D&C Red #7 Calcium Lake E180. The 10 mg capsules also contain: methylparaben, butylparaben, propylparaben, benzyl alcohol, sodium propionate, edetate calcium disodium and sodium lauryl sulfate. The 15 mg ink also contains: D&C Yellow #10 Aluminum Lake. The 30 mg ink also contains: FD&C Red #40 Aluminum Lake #129 and FD&C Blue #2 Aluminum Lake #132.

For more information about Oxabenz Capsules, call 1-800-525-8747.

This Medication Guide has been approved by the U.S. Food and Drug Administration

For Medication Guides, please call 1-800-507-2130

09-2016M

2060

Sandoz Inc.

Princeton, NJ 08540

NDC 0781-2809-01

Oxabenz

Capsules, USP

10 mg CIV

Rx only

100 Capsules

SANDOZ

NDC 0781-2810-01

Oxabenz

Capsules, USP

15 mg CIV

Rx only

100 Capsules

SANDOZ

NDC 0781-2811-01

Oxabenz

Capsules, USP

30 mg CIV

Rx only

100 Capsules

SANDOZ

Oxabenz pharmaceutical active ingredients containing related brand and generic drugs:

Active ingredient is the part of the drug or medicine which is biologically active. This portion of the drug is responsible for the main action of the drug which is intended to cure or reduce the symptom or disease. The other portions of the drug which are inactive are called excipients; there role is to act as vehicle or binder. In contrast to active ingredient, the inactive ingredient's role is not significant in the cure or treatment of the disease. There can be one or more active ingredients in a drug.


Oxabenz available forms, composition, doses:

Form of the medicine is the form in which the medicine is marketed in the market, for example, a medicine X can be in the form of capsule or the form of chewable tablet or the form of tablet. Sometimes same medicine can be available as injection form. Each medicine cannot be in all forms but can be marketed in 1, 2, or 3 forms which the pharmaceutical company decided based on various background research results.
Composition is the list of ingredients which combinedly form a medicine. Both active ingredients and inactive ingredients form the composition. The active ingredient gives the desired therapeutic effect whereas the inactive ingredient helps in making the medicine stable.
Doses are various strengths of the medicine like 10mg, 20mg, 30mg and so on. Each medicine comes in various doses which is decided by the manufacturer, that is, pharmaceutical company. The dose is decided on the severity of the symptom or disease.


Oxabenz destination | category:

Destination is defined as the organism to which the drug or medicine is targeted. For most of the drugs what we discuss, human is the drug destination.
Drug category can be defined as major classification of the drug. For example, an antihistaminic or an antipyretic or anti anginal or pain killer, anti-inflammatory or so.


Oxabenz Anatomical Therapeutic Chemical codes:

A medicine is classified depending on the organ or system it acts [Anatomical], based on what result it gives on what disease, symptom [Therapeutical], based on chemical composition [Chemical]. It is called as ATC code. The code is based on Active ingredients of the medicine. A medicine can have different codes as sometimes it acts on different organs for different indications. Same way, different brands with same active ingredients and same indications can have same ATC code.


Oxabenz pharmaceutical companies:

Pharmaceutical companies are drug manufacturing companies that help in complete development of the drug from the background research to formation, clinical trials, release of the drug into the market and marketing of the drug.
Researchers are the persons who are responsible for the scientific research and is responsible for all the background clinical trials that resulted in the development of the drug.


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References

  1. Dailymed."OXAZEPAM CAPSULE [SANDOZ INC]". https://dailymed.nlm.nih.gov/dailym... (accessed August 28, 2018).
  2. Dailymed."OXAZEPAM: DailyMed provides trustworthy information about marketed drugs in the United States. DailyMed is the official provider of FDA label information (package inserts).". https://dailymed.nlm.nih.gov/dailym... (accessed August 28, 2018).
  3. "oxazepam". https://pubchem.ncbi.nlm.nih.gov/co... (accessed August 28, 2018).

Frequently asked Questions

Can i drive or operate heavy machine after consuming Oxabenz?

Depending on the reaction of the Oxabenz after taken, if you are feeling dizziness, drowsiness or any weakness as a reaction on your body, Then consider Oxabenz not safe to drive or operate heavy machine after consumption. Meaning that, do not drive or operate heavy duty machines after taking the capsule if the capsule has a strange reaction on your body like dizziness, drowsiness. As prescribed by a pharmacist, it is dangerous to take alcohol while taking medicines as it exposed patients to drowsiness and health risk. Please take note of such effect most especially when taking Primosa capsule. It's advisable to consult your doctor on time for a proper recommendation and medical consultations.

Is Oxabenz addictive or habit forming?

Medicines are not designed with the mind of creating an addiction or abuse on the health of the users. Addictive Medicine is categorically called Controlled substances by the government. For instance, Schedule H or X in India and schedule II-V in the US are controlled substances.

Please consult the medicine instruction manual on how to use and ensure it is not a controlled substance.In conclusion, self medication is a killer to your health. Consult your doctor for a proper prescription, recommendation, and guidiance.

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Review

sdrugs.com conducted a study on Oxabenz, and the result of the survey is set out below. It is noteworthy that the product of the survey is based on the perception and impressions of the visitors of the website as well as the views of Oxabenz consumers. We, as a result of this, advice that you do not base your therapeutic or medical decisions on this result, but rather consult your certified medical experts for their recommendations.

Visitor reports

Visitor reported useful

No survey data has been collected yet

Visitor reported side effects

No survey data has been collected yet

Visitor reported price estimates

No survey data has been collected yet

One visitor reported frequency of use

How often in a day do you take the medicine?
Are you taking the Oxabenz drug as prescribed by the doctor?

Few medications can be taken 4 times in a day more than prescribed when the doctor's advice mentions the medicine can be taken according to frequency or severity of symptoms. Most times, be very careful and clear about the number of times you are taking the medication. The report of sdrugs.com website users about the frequency of taking the drug Oxabenz is mentioned below.
Visitors%
4 times in a day1
100.0%

One visitor reported doses

What is the dose of Oxabenz drug you are taking?
According to the survey conducted among sdrugs.com website users, the maximum number of people are using the following dose 11-50mg. Few medications come in only one or two doses. Few are specific for adult dose and child dose. The dose of the medicine given to the patient depends on the severity of the symptom/disease. There can be dose adjustments made by the doctor, based on the progression of the disease. Follow-up is important.
Visitors%
11-50mg1
100.0%

Visitor reported time for results

No survey data has been collected yet

Visitor reported administration

No survey data has been collected yet

Visitor reported age

No survey data has been collected yet

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The information was verified by Dr. Rachana Salvi, MD Pharmacology

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