Local Anesthetics

Question 1

Lidocaine

Answer 1

Amide

Can be given topically or by injection

Question 2

Bupivacaine

Answer 2

Amide

Rx: epidural infusion used for labor analgesia, postoperative pain

Excellent spinal anesthetic

Question 3

Articaine

Answer 3

Amide

dental anesthetic

Question 4

Mepivacaine

Answer 4

Amide

Question 5

Ropivacaine

Answer 5

Amide

Question 6

Cocaine

Answer 6

Ester

Topical use in ENT procedures

Question 7

Benzocaine

Answer 7

Ester

Topical use only (due to enhanced lipid solubility)

Question 8

Chloroprocaine

Answer 8

Ester

Epidural agent for labor anesthesia (esp. C-section) due to lower risk of systemic toxicity or fetal exposure

Question 9

Procaine

Answer 9

Ester

Question 10

Tetracaine

Answer 10

Ester

Question 11

Exparel-Liposome

Answer 11

Encased bupivicaine, 72 hr post op relief

high cost

Question 12

EMLA

Answer 12

Eutetic Mixture of Local Anesthetics

lidocaine + prilocaine

Rx: topical anesthetic

Question 13

TAC

Answer 13

Tetracaine, Adrenalin, Cocaine

Rx: topical use in pediatric ER

Question 14

Topical local anesthetics

Answer 14

Too toxic to inject.

Injectables don’t penetrate skin.

Question 15

Neurolytic

Answer 15

Non-reversible agents