A member asked:

Taking twice daily tamsulosin for bph . had urinary retention prior to dosage increase. now i'm experiencing back pains around the kidney area. ?

A doctor has provided 1 answer
Dr. Alvin Lin answered

Hydronephrosis: Tamsulosin is an alpha blocker that's often used to treat benign prostate hyperplasia, as it tends to relax prostate capsule. 5 alpha reductase inhibitors (5ARIs) such as finasteride & dutasteride are used to shrink prostate over 6mo. Inadequately treated BPH can lead to urinary retention and then to hydronephrosis whereby pressure backs up into kidneys. Best to discuss your concerns w/your doc.

Answered 5/7/2016

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