Tamsulosin (Systemic)

Brand Names : Flomax

Side Effects of This Medicine

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

The following side effects may go away during treatment as your body adjusts to the medicine. However, check with your doctor if any of the following side effects continue or are bothersome:

More common

Abnormal ejaculation; back pain; diarrhea; dizziness; headache; stuffy or runny nose; unusual weakness

Less common

Chest pain; decreased sexual drive or performance; difficulty in sleeping; fainting or lightheadedness, especially when getting up from a lying or sitting position; drowsiness; nausea

Other side effects not listed above may also occur in some patients. If you notice any other effects, check with your doctor.