Safe to use a lavendar epsom salt bath while on lisinopril. I've been taking it for 5 days and have bad back and leg cramps. Dr sd stop taking the rx?

Epsom salt. Unless you're drinking the epsom salt, i simply don't see how a bath (ie, topical) epsom salt could possibly interact with Lisinopril which is in your blood stream. A nice, warm/hot bath should be a very good treatment for cramps and muscular pain and is a time honored rx (as in ancient greeks - used by hipprocates himself!).