Delerium-causing drugs Mnemonic

ACUTE CHANGE IN MS:

Antibiotics (biaxin, penicillin, ciprofloxacin) 
Cardiac drugs (digoxin, lidocaine)
Urinary incontinence drugs (anticholinergics) 
Theophylline
Ethanol

Corticosteroids
H2 blockers
Antiparkinsonian drugs
Narcotics (esp. mepridine)
Geriatric psychiatric drugs
ENT drugs

Insomnia drugs
NSAIDs (eg indomethacin, naproxin) 

Muscle relaxants
S eizure medicines