Can you suggest an alternative to Finax tablet (finasteride)? I'm suffering from side effects.

Hello doctor I m Lalit . Last month a had hair transplant FUE and my doctor priscribed finax tablet every alternate day and nizral 200 twice a week. When i took finax it resulted in loosening of my body muscles, ligaments ,especially in stomach region. Also, i have a weak liver ( enzyme production ) . Kindly suggest me an alternative medicine for finax & nizral which would not affect my liver & muscles. If you need any other details, please let me know.