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Diphenhydramine possesses anticholinergic properties. Xerostomia, or dry mouth, is a common side effect of anti-cholinergic medications, due to anti-muscarinic, parasympatholytic effects. Other adverse reactions may include: • Mydriasis with blurred vision, photophobia • Urinary retention • Constipation • Anhidrosis • Hyperthermia • Tachycardia • Altered mental status

A commonly referenced mnemonic for anti-cholinergic toxicity is “mad as a hatter, red as a beet, dry as a bone, hot as a hare, blind as a bat” to reflect confusion, flushing, dry mouth, hyperthermia and mydriasis, respectively.

Zileuton is the active ingredient found in the medicine Zyflo; a medicine that works as a 5-lipoxygenase inhibitor. As such, zileuton inhibits leukotrienes (LTB4, LTC4, LTD4, and LTE4) formation, and is used for the maintenance treatment of asthma in patients older than the age of 12. In 2 percent of patients, it raises liver enzymes. Sinusitis and nausea are the most common side effects.

LDL can be elevated by diuretics, cyclosporine, glucocorticoids, and amiodarone.