M diabetic for 3 years and having voglibose .3 mg metformin 500 mg 2 times before meal but it feels very hard anf make my erection weak while when I take gemer 0.5 er erection was good but after one month my sugar level suddenly spike so stopped this again start voglibose now again erection become week due to heavy head kindly tell me can I take glipiride instead voglibose please guide me as I having olmezest 40 and aspirin 75. Statin 10 mg also.