A 50-year-old woman arrived at the emergency department with persistent fever and fatigue. Upon examination, she displayed signs of subacute bacterial endocarditis and a new heart murmur. An ECHO revealed vegetations on her aortic valve, but her blood culture results are still pending. The patient has a history of myasthenia gravis and has been advised to avoid certain types of antibiotics.
Which antibiotics should be avoided in this patient to prevent exacerbation of her myasthenia gravis symptoms?