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Flomax Drug Center

Flomax (tamsulosin hydrochloride) is a medication of the alpha-blocker class and is used to treat the symptoms of a prostate gland condition called BPH (benign prostatic hyperplasia). Flomax is available as a generic drug, and dosing should be taken by mouth, usually once daily. Take the first dose at bedtime to minimize the chances of getting dizzy or fainting. After the first dose, take your regularly scheduled dose 30 minutes after the same meal each day. Possible serious side effects include: an erection that is painful or lasts more than four hours, severe dizziness, or fainting. Less serious side effects include: mild dizziness or drowsiness, sleep problems (insomnia), abnormal ejaculation, decreased sex drive, runny or stuffy nose, or sore throat. This is not a complete list of side effects, and others may occur.

Drug interaction and warnings include that Flomax capsules should not be used in combination with other alpha andrenergic blocking agents. It should not be used in combination with strong inhibitors of CYP3A4 (e.g., ketoconazole). Flomax should be used with caution in combination with moderate inhibitors of CYP3A4 (e.g., erythromycin) and with strong (e.g., paroxetine) or moderate (e.g., terbinafine) inhibitors of CYP2D6. Flomax should also be used with caution in combination with cimetidine. Caution should be exercised with concomitant administration of warfarin and Flomax capsules. Flomax is not indicated for use in women. If a patient reports a serious, life-threatening sulfa allergy, caution is warranted when administering Flomax capsules.

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