Can Anavar Be Taken When Suffering From Myasthenia Gravis?

Hello my name is mary and I am 24 years old. I have the Myasthenia gravis and I work out. I am interested in taking some supplements so I wonder if you could tell me whether it s safe for me to start taking anavar or not and what other kinds of supplements i could take. The medication i m on is mestinon. I would be grateful if you could get back at me with some information since I find no other way to discover what would be safe for me or not. Thanks in advance!