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dutasteride and tamsulosin hydrochloride

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Overview

What is Dutasteride and Tamsulosin Hydrochloride?

Dutasteride and Tamsulosin Hydrochloride capsules contain dutasteride (a selective inhibitor of both the type 1 and type 2 isoforms of steroid 5 alpha-reductase, an intracellular enzyme that converts testosterone to DHT and tamsulosin (an antagonist of alpha-adrenoceptors in the prostate). Each Dutasteride and Tamsulosin Hydrochloride capsule contains the following:

The above components are encapsulated in a hard-shell capsule made with the inactive ingredients of carrageenan, FD&C yellow 6, hypromellose, iron oxide red, potassium chloride, titanium dioxide, and imprinted with “GS 7CZ” in black ink.

Dutasteride:

Dutasteride is a white to pale yellow powder with a melting point of 242° to 250°C. It is soluble in ethanol (44 mg/mL), methanol (64 mg/mL), and polyethylene glycol 400 (3 mg/mL), but it is insoluble in water.

Tamsulosin:

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The empirical formula of tamsulosin hydrochloride is CHNOS•HCl. The molecular weight of tamsulosin hydrochloride is 444.97. Its structural formula is:

Tamsulosin hydrochloride is a white or almost white crystalline powder that melts with decomposition at approximately 234°C. It is sparingly soluble in water and slightly soluble in methanol, ethanol, acetone, and ethyl acetate.



What does Dutasteride and Tamsulosin Hydrochloride look like?



What are the available doses of Dutasteride and Tamsulosin Hydrochloride?

0.5 mg dutasteride and 0.4 mg tamsulosin hydrochloride. ()

What should I talk to my health care provider before I take Dutasteride and Tamsulosin Hydrochloride?

How should I use Dutasteride and Tamsulosin Hydrochloride?

Dutasteride and Tamsulosin Hydrochloride capsules are indicated for the treatment of symptomatic BPH in men with an enlarged prostate.

The recommended dosage of Dutasteride and Tamsulosin Hydrochloride capsules is 1 capsule (0.5 mg dutasteride and 0.4 mg tamsulosin hydrochloride) taken once daily approximately 30 minutes after the same meal each day.

The capsules should be swallowed whole and not chewed or opened. Contact with the contents of the Dutasteride and Tamsulosin Hydrochloride capsule may result in irritation of the oropharyngeal mucosa.


What interacts with Dutasteride and Tamsulosin Hydrochloride?

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What are the warnings of Dutasteride and Tamsulosin Hydrochloride?

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What are the precautions of Dutasteride and Tamsulosin Hydrochloride?

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What are the side effects of Dutasteride and Tamsulosin Hydrochloride?

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What should I look out for while using Dutasteride and Tamsulosin Hydrochloride?

Dutasteride and Tamsulosin Hydrochloride capsules are contraindicated for use in:


What might happen if I take too much Dutasteride and Tamsulosin Hydrochloride?

No data are available with regard to overdosage with the fixed-dose formulation of Dutasteride and Tamsulosin Hydrochloride capsules. The following text reflects information available for the individual components.

Dutasteride

In volunteer trials, single doses of dutasteride up to 40 mg (80 times the therapeutic dose) for 7 days have been administered without significant safety concerns. In a clinical trial, daily doses of 5 mg (10 times the therapeutic dose) were administered to 60 subjects for 6 months with no additional adverse effects to those seen at therapeutic doses of 0.5 mg.

There is no specific antidote for dutasteride. Therefore, in cases of suspected overdosage symptomatic and supportive treatment should be given as appropriate, taking the long half-life of dutasteride into consideration.

Tamsulosin

Should overdosage of tamsulosin lead to hypotension , support of the cardiovascular system is of first importance. Restoration of blood pressure and normalization of heart rate may be accomplished by keeping the patient in the supine position. If this measure is inadequate, then administration of intravenous fluids should be considered. If necessary, vasopressors should then be used and renal function should be monitored and supported as needed. Laboratory data indicate that tamsulosin is 94% to 99% protein bound; therefore, dialysis is unlikely to be of benefit.


How should I store and handle Dutasteride and Tamsulosin Hydrochloride?

Store olanzapine orally disintegrating tablets at controlled room temperature, 20° to 25°C (68° to 77°F) [ USP]. The USP defines controlled room temperature as a temperature maintained thermostatically that encompasses the usual and customary working environment of 20° to 25°C (68° to 77°F); that results in a mean kinetic temperature calculated to be not more than 25°C; and that allows for excursions between 15° and 30°C (59° and 86°F) that are experienced in pharmacies, hospitals, and warehouses.Protect olanzapine orally disintegrating tablets from light and moisture.Store olanzapine orally disintegrating tablets at controlled room temperature, 20° to 25°C (68° to 77°F) [ USP]. The USP defines controlled room temperature as a temperature maintained thermostatically that encompasses the usual and customary working environment of 20° to 25°C (68° to 77°F); that results in a mean kinetic temperature calculated to be not more than 25°C; and that allows for excursions between 15° and 30°C (59° and 86°F) that are experienced in pharmacies, hospitals, and warehouses.Protect olanzapine orally disintegrating tablets from light and moisture.Store olanzapine orally disintegrating tablets at controlled room temperature, 20° to 25°C (68° to 77°F) [ USP]. The USP defines controlled room temperature as a temperature maintained thermostatically that encompasses the usual and customary working environment of 20° to 25°C (68° to 77°F); that results in a mean kinetic temperature calculated to be not more than 25°C; and that allows for excursions between 15° and 30°C (59° and 86°F) that are experienced in pharmacies, hospitals, and warehouses.Protect olanzapine orally disintegrating tablets from light and moisture.Dutasteride and Tamsulosin Hydrochloride capsules, containing 0.5 mg dutasteride and 0.4 mg tamsulosin hydrochloride, are oblong hard-shell capsules with a brown body and an orange cap imprinted with “GS 7CZ” in black ink. They are available in bottles with child-resistant closures as follows:Bottle of 30           (NDC 66993-580-30).Bottle of 90           (NDC 66993-580-85).Store at 25°C (77°F); excursions permitted 15° to 30°C (59° to 86°F) [see USP Controlled Room Temperature]. Capsules may become deformed and/or discolored if kept at high temperatures.Dutasteride is absorbed through the skin. Dutasteride and Tamsulosin Hydrochloride capsules should not be handled by women who are pregnant or who could become pregnant because of the potential for absorption of dutasteride and the subsequent potential risk to a developing male fetus .Dutasteride and Tamsulosin Hydrochloride capsules, containing 0.5 mg dutasteride and 0.4 mg tamsulosin hydrochloride, are oblong hard-shell capsules with a brown body and an orange cap imprinted with “GS 7CZ” in black ink. They are available in bottles with child-resistant closures as follows:Bottle of 30           (NDC 66993-580-30).Bottle of 90           (NDC 66993-580-85).Store at 25°C (77°F); excursions permitted 15° to 30°C (59° to 86°F) [see USP Controlled Room Temperature]. Capsules may become deformed and/or discolored if kept at high temperatures.Dutasteride is absorbed through the skin. Dutasteride and Tamsulosin Hydrochloride capsules should not be handled by women who are pregnant or who could become pregnant because of the potential for absorption of dutasteride and the subsequent potential risk to a developing male fetus .Dutasteride and Tamsulosin Hydrochloride capsules, containing 0.5 mg dutasteride and 0.4 mg tamsulosin hydrochloride, are oblong hard-shell capsules with a brown body and an orange cap imprinted with “GS 7CZ” in black ink. They are available in bottles with child-resistant closures as follows:Bottle of 30           (NDC 66993-580-30).Bottle of 90           (NDC 66993-580-85).Store at 25°C (77°F); excursions permitted 15° to 30°C (59° to 86°F) [see USP Controlled Room Temperature]. Capsules may become deformed and/or discolored if kept at high temperatures.Dutasteride is absorbed through the skin. Dutasteride and Tamsulosin Hydrochloride capsules should not be handled by women who are pregnant or who could become pregnant because of the potential for absorption of dutasteride and the subsequent potential risk to a developing male fetus .Dutasteride and Tamsulosin Hydrochloride capsules, containing 0.5 mg dutasteride and 0.4 mg tamsulosin hydrochloride, are oblong hard-shell capsules with a brown body and an orange cap imprinted with “GS 7CZ” in black ink. They are available in bottles with child-resistant closures as follows:Bottle of 30           (NDC 66993-580-30).Bottle of 90           (NDC 66993-580-85).Store at 25°C (77°F); excursions permitted 15° to 30°C (59° to 86°F) [see USP Controlled Room Temperature]. Capsules may become deformed and/or discolored if kept at high temperatures.Dutasteride is absorbed through the skin. Dutasteride and Tamsulosin Hydrochloride capsules should not be handled by women who are pregnant or who could become pregnant because of the potential for absorption of dutasteride and the subsequent potential risk to a developing male fetus .Dutasteride and Tamsulosin Hydrochloride capsules, containing 0.5 mg dutasteride and 0.4 mg tamsulosin hydrochloride, are oblong hard-shell capsules with a brown body and an orange cap imprinted with “GS 7CZ” in black ink. They are available in bottles with child-resistant closures as follows:Bottle of 30           (NDC 66993-580-30).Bottle of 90           (NDC 66993-580-85).Store at 25°C (77°F); excursions permitted 15° to 30°C (59° to 86°F) [see USP Controlled Room Temperature]. Capsules may become deformed and/or discolored if kept at high temperatures.Dutasteride is absorbed through the skin. Dutasteride and Tamsulosin Hydrochloride capsules should not be handled by women who are pregnant or who could become pregnant because of the potential for absorption of dutasteride and the subsequent potential risk to a developing male fetus .


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Clinical Information

Chemical Structure

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Clinical Pharmacology

Dutasteride and Tamsulosin Hydrochloride capsules are a combination of 2 drugs with different mechanisms of action to improve symptoms in patients with BPH: dutasteride, a 5-alpha-reductase inhibitor, and tamsulosin, an antagonist of alpha-adrenoreceptors.

Dutasteride

Dutasteride inhibits the conversion of testosterone to DHT. DHT is the androgen primarily responsible for the initial development and subsequent enlargement of the prostate gland. Testosterone is converted to DHT by the enzyme 5 alpha-reductase, which exists as 2 isoforms, type 1 and type 2. The type 2 isoenzyme is primarily active in the reproductive tissues, while the type 1 isoenzyme is also responsible for testosterone conversion in the skin and liver.

Dutasteride is a competitive and specific inhibitor of both type 1 and type 2 5-alpha-reductase isoenzymes, with which it forms a stable enzyme complex. Dissociation from this complex has been evaluated under in vitro and in vivo conditions and is extremely slow. Dutasteride does not bind to the human androgen receptor.

Tamsulosin

Smooth muscle tone is mediated by the sympathetic nervous stimulation of alpha-adrenoceptors, which are abundant in the prostate, prostatic capsule, prostatic urethra, and bladder neck. Blockade of these adrenoceptors can cause smooth muscles in the bladder neck and prostate to relax, resulting in an improvement in urine flow rate and a reduction in symptoms of BPH.

Tamsulosin, an alpha-adrenoceptor blocking agent, exhibits selectivity for alpha-receptors in the human prostate. At least 3 discrete alpha-adrenoceptor subtypes have been identified: alpha, alpha, and alpha; their distribution differs between human organs and tissue. Approximately 70% of the alpha-receptors in human prostate are of the alpha subtype. Tamsulosin is not intended for use as an antihypertensive.

Non-Clinical Toxicology
Dutasteride and Tamsulosin Hydrochloride capsules are contraindicated for use in:









CNS Drugs Given the primary CNS effects of citalopram, caution should be used when it is taken in combination with other centrally acting drugs.

Alcohol – Although citalopram did not potentiate the cognitive and motor effects of alcohol in a clinical trial, as with other psychotropic medications, the use of alcohol by depressed patients taking citalopram is not recommended.

Monoamine Oxidase Inhibitors (MAOIs) See

Drugs That Interfere With Hemostasis (NSAIDs, Aspirin, Warfarin, etc.) – Serotonin release by platelets plays an important role in hemostasis. Epidemiological studies of the case-control and cohort design that have demonstrated an association between use of psychotropic drugs that interfere with serotonin reuptake and the occurrence of upper gastrointestinal bleeding have also shown that concurrent use of an NSAID or aspirin may potentiate the risk of bleeding. Altered anticoagulant effects, including increased bleeding, have been reported when SSRIs and SNRIs are coadministered with warfarin. Patients receiving warfarin therapy should be carefully monitored when citalopram is initiated or discontinued.

Cimetidine – In subjects who had received 21 days of 40 mg/day citalopram, combined administration of 400 mg twice a day cimetidine for 8 days resulted in an increase in citalopram AUC and C of 43% and 39%, respectively.

Citalopram 20 mg/day is the maximum recommended dose for patients taking concomitant cimetidine because of the risk of QT prolongation (see ).

Digoxin – In subjects who had received 21 days of 40 mg/day citalopram, combined administration of citalopram tablets and digoxin (single dose of 1 mg) did not significantly affect the pharmacokinetics of either citalopram or digoxin.

Lithium Coadministration of citalopram (40 mg/day for 10 days) and lithium (30 mmol/day for 5 days) had no significant effect on the pharmacokinetics of citalopram or lithium. Nevertheless, plasma lithium levels should be monitored with appropriate adjustment to the lithium dose in accordance with standard clinical practice. Because lithium may enhance the serotonergic effects of citalopram, caution should be exercised when citalopram tablets and lithium are coadministered.

Pimozide – In a controlled study, a single dose of pimozide 2 mg coadministered with citalopram 40 mg given once daily for 11 days was associated with a mean increase in QTc values of approximately 10 msec compared to pimozide given alone. Citalopram did not alter the mean AUC or C of pimozide. The mechanism of this pharmacodynamic interaction is not known.

Theophylline Combined administration of citalopram (40 mg/day for 21 days) and the CYP1A2 substrate theophylline (single dose of 300 mg) did not affect the pharmacokinetics of theophylline. The effect of theophylline on the pharmacokinetics of citalopram was not evaluated.

Sumatriptan There have been rare postmarketing reports describing patients with weakness, hyperreflexia, and incoordination following the use of a SSRI and sumatriptan. If concomitant treatment with sumatriptan and an SSRI (e.g., fluoxetine, fluvoxamine, paroxetine, sertraline, citalopram) is clinically warranted, appropriate observation of the patient is advised.

Warfarin Administration of 40 mg/day citalopram for 21 days did not affect the pharmacokinetics of warfarin, a CYP3A4 substrate. Prothrombin time was increased by 5%, the clinical significance of which is unknown.

Carbamazepine Combined administration of citalopram (40 mg/day for 14 days) and carbamazepine (titrated to 400 mg/day for 35 days) did not significantly affect the pharmacokinetics of carbamazepine, a CYP3A4 substrate. Although trough citalopram plasma levels were unaffected, given the enzyme-inducing properties of carbamazepine, the possibility that carbamazepine might increase the clearance of citalopram should be considered if the two drugs are coadministered.

Triazolam Combined administration of citalopram (titrated to 40 mg/day for 28 days) and the CYP3A4 substrate triazolam (single dose of 0.25 mg) did not significantly affect the pharmacokinetics of either citalopram or triazolam.

Ketoconazole Combined administration of citalopram (40 mg) and ketoconazole (200 mg) decreased the C and AUC of ketoconazole by 21% and 10%, respectively, and did not significantly affect the pharmacokinetics of citalopram.

CYP2C19 Inhibitors – Citalopram 20 mg/day is the maximum recommended dose for patients taking concomitant CYP2C19 inhibitors because of the risk of QT prolongation (see , and

Metoprolol Administration of 40 mg/day citalopram for 22 days resulted in a two-fold increase in the plasma levels of the beta-adrenergic blocker metoprolol. Increased metoprolol plasma levels have been associated with decreased cardioselectivity. Coadministration of citalopram and metoprolol had no clinically significant effects on blood pressure or heart rate.

Imipramine and Other Tricyclic Antidepressants (TCAs) studies suggest that citalopram is a relatively weak inhibitor of CYP2D6. Coadministration of citalopram (40 mg/day for 10 days) with the TCA imipramine (single dose of 100 mg), a substrate for CYP2D6, did not significantly affect the plasma concentrations of imipramine or citalopram. However, the concentration of the imipramine metabolite desipramine was increased by approximately 50%. The clinical significance of the desipramine change is unknown. Nevertheless, caution is indicated in the coadministration of TCAs with citalopram.

Electroconvulsive Therapy (ECT) – There are no clinical studies of the combined use of electroconvulsive therapy (ECT) and citalopram.

As with other alpha-adrenergic antagonists, orthostatic hypotension (postural hypotension, dizziness, and vertigo) may occur in patients treated with tamsulosin-containing products, including Dutasteride and Tamsulosin Hydrochloride capsules, and can result in syncope. Patients starting treatment with Dutasteride and Tamsulosin Hydrochloride capsules should be cautioned to avoid situations where syncope could result in an injury .

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Reference

This information is obtained from the National Institute of Health's Standard Packaging Label drug database.
"https://dailymed.nlm.nih.gov/dailymed/"

While we update our database periodically, we cannot guarantee it is always updated to the latest version.

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Professional

Clonazepam Description Each single-scored tablet, for oral administration, contains 0.5 mg, 1 mg, or 2 mg Clonazepam, USP, a benzodiazepine. Each tablet also contains corn starch, lactose monohydrate, magnesium stearate, microcrystalline cellulose, and povidone. Clonazepam tablets USP 0.5 mg contain Yellow D&C No. 10 Aluminum Lake. Clonazepam tablets USP 1 mg contain Yellow D&C No. 10 Aluminum Lake, as well as FD&C Blue No. 1 Aluminum Lake. Chemically, Clonazepam, USP is 5-(o-chlorophenyl)-1,3-dihydro-7-nitro-2H-1,4-benzodiazepin-2-one. It is a light yellow crystalline powder. It has the following structural formula: C15H10ClN3O3 M.W. 315.72
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Tips

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Interactions

Interactions

A total of 440 drugs (1549 brand and generic names) are known to interact with Imbruvica (ibrutinib). 228 major drug interactions (854 brand and generic names) 210 moderate drug interactions (691 brand and generic names) 2 minor drug interactions (4 brand and generic names) Show all medications in the database that may interact with Imbruvica (ibrutinib).