Classification of Symphatomimetics/Adrenomimetics

Question 1

What are the classifications of sympathomimetic drugs?

Answer 1

Direct-acting, indirect-acting, mixed-acting

Question 2

What do direct-acting sympathomimetics do?

Answer 2

Directly stimulate the adrenergic receptor, either norepinephrine or epinephrine. In other words, the drug is the one who stimulates the receptor.

Question 3

What do indirect-acting sympathomimetics do?

Answer 3

Stimulate release of norepinephrine from nerve endings. In other words, The indirect-acting drug stimulates release of norepinephrine so that norepinephrine will be the one that stimulates the receptor.

Question 4

Which drug is an example of an indirect-acting sympathomimetic?

Answer 4

Amphetamine

Question 5

What do mixed-acting sympathomimetics do?

Answer 5

It is both a direct and indirect acting. It stimulates adrenergic receptor sites and stimulates release of norepinephrine from nerve endings

Question 6

Which drug is an example of a mixed-acting sympathomimetic?

Answer 6

Ephedrine