blocker

Antagon is likely misspelled.

Antagon has no English definition.

As a noun blocker

is agent noun of block; something that blocks something specific.

As nouns the difference between blocker and hexamethonium

is that blocker is agent noun of block; something that blocks something specific while hexamethonium is (organic chemistry|medicine) any divalent cation derived from hexamethylene diamine, but especially the hexamethyl derivative which is a ganglionic blocker.

As nouns the difference between blocker and nebivolol

is that blocker is agent noun of block; something that blocks something specific while nebivolol is a β1 receptor blocker with nitric oxide-potentiating vasodilatory effect, used to treat hypertension.

As nouns the difference between blocker and nifenalol

is that blocker is agent noun of block; something that blocks something specific while nifenalol is (organic compound) a nitrophenyl derivative of an amino alcohol that is an adrenergic blocker.

As nouns the difference between blocker and rapacuronium

is that blocker is agent noun of block; something that blocks something specific while rapacuronium is a nondepolarizing neuromuscular blocker formerly used in anaesthesia.

As nouns the difference between blocker and oxodipine

is that blocker is agent noun of block; something that blocks something specific while oxodipine is (pharmaceutical drug) a type of calcium channel blocker.

As nouns the difference between blocker and rocuronium

is that blocker is agent noun of block; something that blocks something specific while rocuronium is an aminosteroid nondepolarizing neuromuscular blocker used in anaesthesia, to facilitate endotracheal intubation, and to provide skeletal muscle relaxation during surgery or mechanical ventilation.