PREPARATIONS: Capsules: 0.4 mg.
DRUG INTERACTIONS: The elimination of tamsulosin from the body may be reduced by:
- ketoconazole (Nizoral, Extina, Xolegel, Kuric),
- paroxetine (Paxil),
- cimetidine (Tagamet),
- ritonavir (Norvir),
- lopinavir, and
- other drugs that reduce the elimination of drugs by liver enzymes.
Reduced elimination may lead to increased side effects of tamsulosin. PDE-5 inhibitors (for example, vardenafil [Levitra, Staxyn], Adcirca, sildenafil [Viagra, Revatio], tadalafil [Cialis]) add to the blood pressure lowering effects of tamsulosin and may result in severe blood pressure reduction.
PREGNANCY AND BREASTFEEDING SAFETY: Tamsulosin is not prescribed for women.
This medication is used only in men. It is not known if tamsulosin is secreted into human milk.
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