Hi Debbie.
I have been on HT for 28 months and I have been on Tamsulosin for many years. I have never experienced any adverse side effects from the Tamsulosin but the side effects from the HT is causing me severe problems. Apart from the usual and forewarned side effects - hot flushes, fatigue, loss of muscle tone, and weight gain - I have experienced considerable joint pain in my hands and, more recently, my legs. I believe the chief culprit to be the HT (Zoladex). Joint pain is one of the known side effects of this medication although not everyone experiences this.
Hand therapy helped with my hands but while the pain is less it persists. I also receive regular physiotherapy.
Best wishes for your dad's recovery.