Acts on a1, a2, b1 and b2 receptors

similar to epinephrine on α & β1 receptors. No effect on β2 receptors

DA acts on the following receptors: A 1: vasoconstriction B1: positive chronotropic and inotropic effects D1: vasodilation of renal and splanchnic arterioles D2: auto-receptors on adrenergic neurons

Acts on both alpha and beta receptors but more prominently on β1 receptor • Does not act on D1 or D2 receptors

Phenylephrine

Clonidine

Oxymetazoline

Salbutamol, terbutaline

for glucoma and to lower intraocular preas.. and to mitosis can be used to promote salivation and in sjogren syndrome

used to treat urinary retension

lipiid soluble used in eye miosis

non- lipid soluble used in Myasthenia gravis

TENSILON test ; Edrophonium is a short acting AChEast inhibitor use in Myasthenia gravis diagnosis

reactivate inhibited AChE