<s>[INST] Hi. I have been taking Pravachol for approximate 5years. I have had drop foot for about the same period. Is this a coincidence? My leg is fitted with an afo brace also.. It is hard to get around as you can imagine... What do you think...... Sincerely Dorothy... [/INST] Hi Dorothy..Unfortunately.This drug may rarely cause muscle problems (which can rarely lead to very serious conditions called rhabdomyolysis and autoimmune myopathy).Consult your doctor as you need to change it asap. </s>