Myasthenia gravis - drug induced

Myasthenia Gravis: lnduction and Exacerbation Associated with Drugs

Ciprofloxacin, a fluoroquinolone anti-infective, has been linked to both worsening and induction of myasthenia gravis.

There simply is no way any doctor can know all the side effects and potential problems with all the drugs that are out there now.