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Some medicines can react with APO-DUTASTERIDE and may make it more likely to have side effects. Some of these medicines may include: Verapamil or diltiazem (for high blood pressure); Ritonavir (for HIV); Ketaconazole (for fungal infections); Ciprofloxacin or troleandomycin (for bacterial infections); Cimetidine (for heart burn); Certain herbal medicines such as St. John's Wort or Milk Thistle.
Make sure the doctor knows if any of these, or other medicines, is being taken. The dose of APO-DUTASTERIDE may need to be reduced. Remember to include all medicines, herbal remedies or dietary supplements, such as vitamins, iron or calcium, which have been bought without a prescription.
Do not eat grapefruit or drink grapefruit juice while taking APO-DUTASTERIDE. This drink is known to increase the blood levels of some drugs in the body.
