QTc
Renal function
LFTs
Signs/symptoms of tendinopathy or peripheral neuropathy
Disordered glucose regulation
Altered mental status
Tier 2
QTc prolongation
Dysglycemia
Rash
Tendinopathy and rupture
GI upset
Weakness exacerbation in myasthenia gravis
CNS toxicity including confusion, psychosis
Aortic aneurysm/dissection
Hepatotoxicity
Phototoxicity
See Lexicomp
Levaquin