Iressa
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Side Effects & Adverse Reactions
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Legal Issues
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FDA Safety Alerts
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Manufacturer Warnings
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FDA Labeling Changes
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Uses
Tamsulosin hydrochloride capsules, USP are indicated for the treatment of the signs and symptoms of benign prostatic hyperplasia (BPH) [see Clinical Studies (14)]. Tamsulosin hydrochloride capsules are not indicated for the treatment of hypertension.
History
There is currently no drug history available for this drug.
Other Information
Tamsulosin hydrochloride is an antagonist of alpha1A adrenoceptors in the prostate.
Tamsulosin hydrochloride is (-)-(R)-5-[2-[[2-(o-Ethoxyphenoxy) ethyl]amino]propyl]-2-methoxybenzenesulfonamide, monohydrochloride. Tamsulosin hydrochloride is a white or almost white crystalline powder that melts with decomposition at approximately 230°C. It is slightly soluble in water, freely soluble in formic acid, slightly soluble in anhydrous ethanol, sparingly soluble in methanol, slightly soluble in glacial acetic acid, and practically insoluble in ether.
The molecular formula of tamsulosin hydrochloride is C20H28N2O5S • HCl. The molecular weight of tamsulosin hydrochloride is 444.98. Its structural formula is:
Each tamsulosin hydrochloride capsule USP for oral administration contains tamsulosin hydrochloride USP 0.4 mg, and the following inactive ingredients: microcrystalline cellulose, methacrylic acid copolymer dispersion, hypromellose acetate succinate, triethyl citrate, talc, and sodium lauryl sulfate.
The capsule shell contains gelatin, sodium lauryl sulfate, FD&C blue No. 2, ferric oxide red, ferric oxide yellow, and titanium dioxide.
Imprinting black ink contains shellac, dehydrated alcohol, butyl alcohol, propylene glycol, strong ammonia solution, black iron oxide, and potassium hydroxide.
It meets USP Dissolution Test 9.
Sources
Iressa Manufacturers
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Astrazeneca Pharmaceuticals Lp
![Iressa (Gefitinib) Tablet, Coated [Astrazeneca Pharmaceuticals Lp]](/wp-content/themes/bootstrap/assets/img/loading2.gif)
Iressa | Sun Pharmaceutical Industries Limited
Tamsulosinhydrochloride capsules 0.4 mg once daily is recommended as the dose for the treatment of the signs and symptoms of BPH. It should be administered approximately one-half hour following the same meal each day. Tamsulosin hydrochloride capsules should not be crushed, chewed or opened.
For those patients who fail to respond to the 0.4 mg dose after 2 to 4 weeks of dosing, the dose of tamsulosin hydrochloride capsules can be increased to 0.8 mg once daily. Tamsulosin hydrochloride capsules 0.4 mg should not be used in combination with strong inhibitors of CYP3A4 (e.g., ketoconazole) [see Warnings and Precautions (5.2)].
If tamsulosin hydrochloride capsules administration is discontinued or interrupted for several days at either the 0.4 mg or 0.8 mg dose, therapy should be started again with the 0.4 mg once-daily dose.
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