What Are The Side Effects Of Meprate Tablet?

Hi, I am 29yrs old, Doctor has prescribed me with Meprate tablet for 5 days after the evening meal to regularize my menstrual cycle and prepare me for pregnancy. I am having nausea feeling and don t feel like eating anything after consumption of the tablet. Also im feeling lethargic. The doc had told me that this will happen after the consumption of the tablet..is this ok???