Q: I am a 35 years old man who got married last year. I am unable to perform sexually. I get an erection only after using Tadalafil 10 mg, that too not a hard erection and hence fail to penetrate. I got my blood tested for serum testosterone for which the result was - 4 and serum prolactin was 26. What is the reason for this? Do I need to take medication for low testosterone levels?

A:If 10 mg of Tadalafil is not doing the job, try 20 mg. You have not mentioned what the normal range for your lab for testosterone and prolactin levels is. In any case, abnormal levels of these hormones will impair libido, rather than affect erections per se. From your history, it appears that your libido is intact and that you do obtain erections too. The only problem seems to be with rigidity. If 20 mg Tadalafil is not doing the job, you'll require a detailed andrological evaluation.