Xanax XR extended-release tablets
Xanax XR extended-release tablets Uses, Dosage, Side Effects, Food Interaction and all others data.
Xanax XR extended-release tablets is a triazolo analogue of the 1,4-benzodiazepine class of drugs. It is an anxiolytic with hypnotic and anticonvulsive properties. Xanax XR extended-release tablets is presumed to produce its effects via interacting with the Gamma Aminobutyric Acid (GABA) - benzodiazepine receptor complex. Like all benzodiazepines, it causes a dose related CNS depressant activity varying from mild impairment of task performance to hypnosis.
Xanax XR extended-release tablets is indicated to treat anxiety and panic disorders. The mechanism by which its cell receptor interactions translate to a clinical effect is not known.
Xanax XR extended-release tablets exerts its effects through interaction with BNZ-1, BNZ-2, and GABA-A receptors. Xanax XR extended-release tablets binding to BNZ-1 is thought to influence sedation and anti-anxiety, BNZ-2 may influence memory, coordination, muscle relaxation, and anticonvulsive activity, and GABA-A may calm patients by increasing the affinity of GABA-A receptors for GABA.
The metabolism of alprazolam is mediated largely through the action of CYP3As and so alprazolam is contraindicated with CYP3A inhibitors such as ketoconazole and itraconazole.
| Trade Name | Xanax XR extended-release tablets |
| Availability | Prescription only |
| Generic | Alprazolam |
| Alprazolam Other Names | Alprazolam |
| Related Drugs | sertraline, escitalopram, fluoxetine, duloxetine, hydroxyzine, clonazepam, Lexapro, Zoloft, Xanax, Cymbalta |
| Type | |
| Formula | C17H13ClN4 |
| Weight | Average: 308.765 Monoisotopic: 308.082874143 |
| Protein binding | Alprazolam is 80% protein bound in serum. The majority of this protein binding is to serum albumin. Alprazolam is also bound to alpha1-acid glycoprotein with low frequency. |
| Groups | Approved, Illicit, Investigational |
| Therapeutic Class | Benzodiazepine sedatives |
| Manufacturer | |
| Available Country | USA |
| Last Updated: | September 19, 2023 at 7:00 am |
Uses
- * Anxiety disorder
- * Short term relief of anxiety
- * Anxiety associated with depression
- * Panic disorder, with or without agoraphobia.
Xanax XR extended-release tablets is also used to associated treatment for these conditions: Anxiety, Generalized Anxiety Disorder (GAD), Panic Disorder
How Xanax XR extended-release tablets works
Xanax XR extended-release tablets is a triazolobenzodiazepine used to treat certain anxiety and panic disorders. Xanax XR extended-release tablets acts on benzodiazepine receptors BNZ-1 and BNZ-2. The active metabolites 4-hydroxyalprazolam acts on these receptors with 0.20 times the potency of alprazolam and alpha-hydroxyalprazolam acts on these receptors with 0.66 times the potency.
The effect of alprazolam on BNZ-1 mediates the sedation and anti-anxiety effects of the drug while the action on BNZ-2 mediates effects on memory, coordination, muscle relaxation, and anticonvulsive activity.
Xanax XR extended-release tablets also couple with GABA-A receptors to enhance GABA binding to its receptor. This interaction mediates inhibition of the nervous system and results in a calming effect.
The molecular mechanisms as well as the clinical effects of alprazolam have both been well demonstrated, however the means by which the molecular mechanism translates to a clinical effect is still not understood.
Dosage
Xanax XR extended-release tablets dosage
Treatment should be initiated with a dose of 0.25 to 0.5 mg three times daily. Depending on the response, dose may
be increased at intervals of 3 to 4 days in increments of no more than 1 mg per day. The maximum dose should not
exceed 4 mg/day. Occasional patients with panic disorder may need as much as 10 mg a day to achieve a
successful response and in these cases periodic reassessment and consideration of dosage adjustment is required.
Dosage should be individualized for maximum beneficial effect with a lowest possible dose. If side-effects occur at
starting dose, dose may be lowered. When discontinuing therapy, dosage should be reduced gradually by no more
than 0.5 mg every three days.
In elderly patients or in patients with advanced liver disease, the usual starting dose is 0.25 mg, two or three times
daily and may be gradually increased if needed and tolerated. Safety and effectiveness of Xanax XR extended-release tablets in individuals
below 18 years of age have not been established.
Xanax XR extended-release tablets XR 1 should be administered once daily, preferably in the morning by patients who are on multiple dosage
regimen of Xanax XR extended-release tablets 0.25/0.5 mg. The tablets should be taken intact, they should not be chewed, crushed, or broken.
Side Effects
Side effects, if occur, are generally observed at the beginning of therapy and usually disappear upon continued medication. The most frequent side effects are drowsiness and light headedness. The other side effects, that may occur include depression, headache, confusion, dry mouth, constipation etc.
Toxicity
Xanax XR extended-release tablets overdose can present as sleepiness, confusion, poor coordination, slow reflexes, coma, and death. Taking alprazolam with alcohol lowers the threshold for overdose. Patients should have their respiration, pulse, and blood pressure monitored. Patients can be treated by gastric lavage and intravenous fluids.. If hypotension occurs, patients may be treated with vasopressors. In known, or suspected overdoses, patients can be given the benzodiazepine receptor antagonist flumazenil in addition to other methods of management.
Oral LD50 in rats is 331-2171mg/kg.
Xanax XR extended-release tablets is a pregnancy category D teratogen meaning there is evidence of risk to the fetus of a mother taking alprazolam but in some cases the benefit may outweigh the risk. Children born to these mothers are also at risk of withdrawal symptoms, flaccidity, and respiratory issues.
Benzodiazepines are expressed in human breast milk and so nursing is generally not recommended in mothers taking alprazolam.
Xanax XR extended-release tablets is not associated with carcinogenicity, mutagenicity, or impairment of fertility.
Precaution
Because Xanax XR extended-release tablets may produce psychological and physical dependence, increment of dose or abrupt discontinuation of Xanax XR extended-release tablets therapy should not be done without physician's advice. Duration of therapy must be determined by the physicians. Xanax XR extended-release tablets should be administered with caution to patients with hepatic or renal disease, chronic pulmonary insufficiency or sleep apnea.
Interaction
Xanax XR extended-release tablets produces additive CNS depressant effects when co-administered with other psychotropic medications, anticonvulsants, antihistaminics, ethanol and other drugs which themselves produce CNS depression.
Food Interaction
- Avoid alcohol. Alcohol may potentiate the CNS depressant effects of this drug.
- Avoid grapefruit products.
- Limit caffeine intake.
- Take with or without food. Food increases the Cmax of extended release alprazolam by 25%, but the AUC and half life are not affected.
[Moderate] GENERALLY AVOID: The pharmacologic activity of oral midazolam, triazolam, and alprazolam may be increased if taken after drinking grapefruit juice.
The proposed mechanism is CYP450 3A4 enzyme inhibition.
In addition, acute alcohol ingestion may potentiate CNS depression and other CNS effects of many benzodiazepines.
Tolerance may develop with chronic ethanol use.
The mechanism may be decreased clearance of the benzodiazepines because of CYP450 hepatic enzyme inhibition.
Also, it has been suggested that the cognitive deficits induced by benzodiazepines may be increased in patients who chronically consume large amounts of alcohol.
MANAGEMENT: The manufacturer recommends that grapefruit juice should not be taken with oral midazolam.
Patients taking triazolam or alprazolam should be monitored for excessive sedation.
Alternatively, the patient could consume orange juice which does not interact with these drugs.
Patients should be advised to avoid alcohol during benzodiazepine therapy.
Xanax XR extended-release tablets Drug Interaction
Moderate: duloxetine, duloxetine, escitalopram, escitalopram, pregabalin, pregabalin, metoprolol, metoprololUnknown: amphetamine / dextroamphetamine, amphetamine / dextroamphetamine, aspirin, aspirin, omega-3 polyunsaturated fatty acids, omega-3 polyunsaturated fatty acids, cyanocobalamin, cyanocobalamin, ascorbic acid, ascorbic acid, cholecalciferol, cholecalciferol
Xanax XR extended-release tablets Disease Interaction
Major: acute alcohol intoxication, closed-angle glaucoma, drug dependence, renal/liver disease, respiratory depression, seizuresModerate: depression, obesity, paradoxical reactions
Volume of Distribution
Volume of distribution following oral administration is 0.8-1.3L/kg. Xanax XR extended-release tablets crosses the blood-brain barrier.
Elimination Route
Oral bioavailability of a standard release tablet of alprazolam is 84-91% with a time to maximum concentration of 1.8 hours. A 1mg oral dose of alprazolam leads to a maximum plasma concentration of 12-22mcg/L. Xanax XR extended-release tablets is rapidly absorbed in the gastrointestinal tract.
Data for the area under the curve and the effect of taking alprazolam with food are not readily available.
Half Life
11.2 hours in healthy patients. The half life is 16.3h in the elderly, 5.8-65.3h in patients with alcoholic liver disease, 9.9-40.4h in obese patients. The half life is 25% higher in Asian patients compared to Caucasians. Other studies have shown the half life to be 9-16h.
Clearance
Oral clearance is 0.90±0.21mL/min/kg but this increases to 2.13±0.54mL/min/kg when given with CYP3A inducers. Other studies have demonstrated a clearance of 0.70-1.5mL/min/kg.
Elimination Route
Xanax XR extended-release tablets is mainly eliminated in the urine. A large portion of the dose is eliminated as unmetabolized alprazolam. 2
Pregnancy & Breastfeeding use
Pregnancy: Xanax XR extended-release tablets has been categorized in pregnancy category D; that means, it should be avoided in pregnancy.
Lactation: Like other benzodiazepines, Xanax XR extended-release tablets is assumed to be excreted in breast milk. Therefore, nursing should not be undertaken by mothers who must use Xanax XR extended-release tablets.
Contraindication
Contraindicated in patients with hypersensitivity to alprazolam or other benzodiazepines. Xanax XR extended-release tablets is also contraindicated in patients with myasthenia gravis, acute narrow angle glaucoma, during pregnancy and also in infants.
Special Warning
Use in Children: Safety and efficacy of Xanax XR extended-release tablets in patients under the age of 18 years has not been established.
Acute Overdose
Manifestations of Xanax XR extended-release tablets over dosage include somnolence, confusion, impaired coordination, diminished reflexes and coma. In such cases of over dosage general supportive measures should be employed along with immediate gastric lavage.
Interaction with other Medicine
The CNS-depressant action of Xanax XR extended-release tablets may be aggravated by concomitant use of other psychotropic drugs, anticonvulsants, antihistaminics, alcohol and oral contraceptives.
Storage Condition
Xanax XR extended-release tablets tablets should be stored in a cool and dry place, protected from light and moisture.
Innovators Monograph
You find simplified version here Xanax XR extended-release tablets
Xanax XR extended-release tablets contains Alprazolam see full prescribing information from innovator Xanax XR extended-release tablets Monograph, Xanax XR extended-release tablets MSDS, Xanax XR extended-release tablets FDA label
FAQ
What does Xanax XR extended-release tablets do?
Xanax XR extended-release tablets is used to treat anxiety and panic disorders. It belongs to a class of medications called benzodiazepines which act on the brain and nerves (central nervous system) to produce a calming effect. It works by enhancing the effects of a certain natural chemical in the body (GABA).
What is Xanax XR extended-release tablets used for?
Xanax XR extended-release tablets is used to treat anxiety disorders and panic disorder (sudden, unexpected attacks of extreme fear and worry about these attacks). Alprazolam is in a class of medications called benzodiazepines. It works by decreasing abnormal excitement in the brain.
Is Xanax XR extended-release tablets a sleeping pill?
Xanax XR extended-release tablets belong to a class of medicines called benzodiazepines and hydrocodone belongs to the class of medicines called opioids. Both the classes cause sedation (increased tendency to sleep) and respiratory depression (slow and difficult breathing).
What are the side effects of Xanax XR extended-release tablets?
Common side effects of Xanax XR extended-release tablets include:
- Drowsiness
- Depression
- Headache pain
- Constipation
- Diarrhea
- Dry mouth
- Impaired coordination
- Increased or decreased appetite
- Fatigue
- Memory problems
- Irritability
- Decreased salivation
- Cognitive disorders
- Insomnia
- Lightheadedness
- Fainting
- Difficulty speaking
- Nausea/vomiting
- Weight gain or weight loss
- Nasal congestion
- Decreased or increased libido
- Menstrual disorder
- Difficulty urinating
- Fast heart rate
- Confusion
- Blurred vision
- Low blood pressure (hypotension)
- Agitation/restlessness
- Dizziness
- Increased salivation
- Nervousness
- Tremor
- Talkativeness
- Incontinence
What should avoid while taking Xanax XR extended-release tablets?
Notes for Consumers: Grapefruit juice and grapefruit-containing foods may increase the actions or side effects (such as drowsiness or slowed breathing) of Xanax XR extended-release tablets. Avoid taking Xanax XR extended-release tablets with grapefruit juice (or grapefruit) whenever possible, and do not increase your intake of grapefruit while taking Xanax XR extended-release tablets.
Does anyone take Xanax XR extended-release tablets daily?
People stop feeling the effects of Xanax XR extended-release tablets long before it leaves the body, which is why it is often taken more than once a day. It's important to take it as prescribed. Taking too many doses can lead to dependence and accidental overdose.
Is Xanax XR extended-release tablets a steroid?
Xanax XR extended-release tablets is a Schedule IV controlled substance and is a common drug of abuse.
Is Xanax XR extended-release tablets an antidepressant?
Xanax XR extended-release tablets appears to be an effective antidepressant in the treatment of outpatients who have a diagnosis of major depressive disorder. The authors have reviewed six controlled double-blind studies of Xanax XR extended-release tablets in the treatment of depression.
Does Xanax XR extended-release tablets cause liver damage?
Xanax XR extended-release tablets, like other benzodiazepines, is rarely associated with serum ALT elevations, and clinically apparent liver injury from Xanax XR extended-release tablets is extremely rare. There have been a few case reports of acute liver injury from Xanax XR extended-release tablets and recurrence on reexposure has been reported.
Is one .25 Xanax XR extended-release tablets a day addictive?
Xanax XR extended-release tablets is a benzodiazepine used to treat anxiety and insomnia. The drug is extremely addictive and should only be used under a doctor's supervision.
Will doctors prescribe Xanax XR extended-release tablets long-term?
It can be used short-term as a way to offer people immediate relief from their symptoms or as part of a long-term management plan for GAD or panic disorder. Xanax XR extended-release tablets is often prescribed for panic attacks, which can occur as part of SAD.
How long should I take Xanax XR extended-release tablets?
Xanax XR extended-release tablets is a powerful benzodiazepine that is only recommended for use for up to six weeks.
Does Xanax XR extended-release tablets cause memory loss?
Several research studies have found that chronic or heavy Xanax XR extended-release tablets use can cause short-term memory loss. This is listed by the National Institutes of Health (NIH) as one of the more serious side effects of Xanax XR extended-release tablets requiring immediate medical attention.
Does Xanax XR extended-release tablets help with racing thoughts?
Xanax XR extended-release tablets may be prescribed to treat symptoms of the manic phase of bipolar disorder. These symptoms include: racing thoughts and speech. high energy.
Can Xanax XR extended-release tablets help mild depression?
Xanax XR extended-release tablets is a medication that is approved by the Food and Drug Administration (FDA) to treat anxiety and panic disorders. Xanax XR extended-release tablets, which is the Xanax XR extended-release tablets name for the generic drug alprazolam, isn't usually used to treat depression because there are several newer and safer medications available.
Is Xanax XR extended-release tablets safe to use?
Xanax XR extended-release tablets is a safe and effective medication when used as directed. Benzodiazepines may produce emotional and/or physical dependence (addiction) even when used as recommended. Physical dependence may develop after 2 or more weeks of daily use.
What is the most Xanax XR extended-release tablets a doctor can prescribe?
For anxiety disorders, the dosage for adults typically starts at 0.25 mg to 0.5 mg three times per day. A doctor may incrementally increase the dosage to maximize the effect. However, the maximum dosage does not usually exceed 4 mg per day. For panic disorders, the required dose of Xanax XR extended-release tablets may exceed 4 mg per day.
Can Xanax XR extended-release tablets make anxiety worse?
Recent studies evaluating the effectivity of Xanax XR extended-release tablets for anxiety have shown that after just 8 weeks, those that were on a Xanax XR extended-release tablets prescription had worse anxiety than those who took a placebo. Despite these results, doctors continue to prescribe these benzos for anxiety disorders at an alarming rate.
How long does the Xanax XR extended-release tablets high last for?
Xanax XR extended-release tablets has an average half-life of roughly 11 hours in healthy adults. In other words, it takes 11 hours for the average healthy person to eliminate half of the dose of Xanax XR extended-release tablets.
