(US, rail transport) The service mark of Amtrak's high-speed rail service in the Northeast Corridor of the United States.

(organic chemistry) A metabolite (4-(acetylamino)-n-(2-(diethylamino)ethyl)benzamide) of procainamide that may cause cardiac toxicity in kidney failure

(medicine) A stimulant drug, having a structure based on xanthine, that acts as an adenosine receptor antagonist

(pharmacology) A beta blocker (trademark Monitan, Sectral) which is partially selective for cardiac beta receptors, used in the treatment of hypertension, angina, and arrhythmia.

(organic chemistry, medicine) The compound N-(acetylcarbamoyl)-2-bromo-2-ethylbutanamide once used as a hypnotic and sedative

(pharmacology) A nonsteroidal anti-inflammatory drug.

4-acetamidobenzoic acid, a component of some pharmaceutical preparations including inosine pranobex.

A steroid drug with sedative effects.

An analgesic drug.

A contrast agent used in ultrasound.