Hi thanks for contacting HCM.... Drugs used for hyper cholesterol usually not affect sperm or not causing erection problem.... But few antihypertensive drugs can lead erectile dysfunction like thiazide diuretic and beta blockers mainly ..... This two drugs mainly causative ...So better to chose another drug for hypertension if needed.... Certain antidepressant drugs , coccaine , steroid , alcohol , marijuana can affect sperm quality..... You have not mentioned name of drug using .. If problem in conceiving with use of these drugs you can consult psychiatrist for that ... Take care