Dear Ma'am, Hi & Welcome.
Tamsulosin is not a substitute for
Flomax.
Flomax is a brand name of generic Tamsulosin.
Tamsulosin is a selective alpha-blocker that works by relaxing the muscles in the
prostate and bladder so that urine can flow easily.
It is commonly prescribed in the treatment of benign prostate enlargement.
to treat the symptoms like difficulty urinating (hesitation, dribbling, weak stream, and incomplete bladder emptying), painful urination, and urinary frequency and urgency.
Let him continue to take the prescribed treatment.
I also advise him to undergo an abdominal
ultrasound scan and Prostate-specific antigen (PSA) test.
Hope the advice given above would be useful to him.
Best regards.
A feedback is appreciated.