When your prostate gland becomes enlarged it can cause urinary problems such as difficulty passing urine and a need to go to the toilet frequently or urgently. It can also cause urine flow to be slower. If not treated, there is a risk that your urine flow will be completely blocked. Tamsin 0.4mg Tablet PR works by relaxing muscles in the bladder and prostate. So, it can rapidly relieve the symptoms and make it easier for you to urinate. However, it may take up to 6 months to notice the full benefit. Take this medicine exactly as prescribed for maximum benefits.