There is a reason why doctors prescribe a particular type of medication for a particular time period. You should follow your doctor’s recommendation until your doctor tells you something different. If you think a medication is making your muscles ache or your stomach hurt, say so; side effects are not rare, and your doctor can usually switch you to another drug. Don’t put yourself in the position where you have to admit that you chose not to follow your doctor’s advice. This can be devastating to your claim.