Is It Safe To Take Letrofil Tablet For Conceiving?

Hi, We are trying for a baby from last 2 years. There was no luck yet. From last 6 months we started to worry about infertility if there is any. So for my self I had sperm test done and for my wife hormonal test done. Both reports were normal. Mean time when we consulted our family doctor at home town. She has prescribed LETROFIL 2.5MG. Is it ok to take those tablets?

Please answer.
Thanks
sk