Use medications that worsen or trigger exacerbation of myasthenia gravis, “impending myasthenic crisis” (exacerbation), and respiratory failure management in myasthenia gravis to frame the working diagnosis and next step; treat it as a safety constraint before prescribing or reassuring. Make “impending myasthenic crisis” (exacerbation) the checkpoint that determines whether you escalate testing, narrow the differential, or change treatment.

Medications that should be avoided include beta blockers, aminoglycosides, polymyxin antibiotics, certain antiarrhythmics, and D-penicillamine; Also worth noting that emotional stress, infection, and surgery can step in as major triggers for a myasthenic crisis; This refers to a significant clinical worsening that has the potential to progress into a full-blown crisis over a matter of days or weeks; You definitely want to be cautious with certain drugs; Severe, rapid deterioration where the respiratory muscles or airway defenses are compromised, making intubation or mechanical airway intervention absolutely necessary