Short-acting
Intermediate-Acting
Long-acting
100

Starts with 'P'

Procaine

100

1

Lidocaine

100

1

Bupivocaine

200

Starts with 'Ch'

Chloroprocaine

200

2

Lidocaine

Articaine

200

2

Bupivocaine

Ropivocaine

300

Starts with 'B'

Benzocaine

300

3

Lidocaine

Articaine

Mepivocaine

300

3

Bupivocaine

Ropivocaine

Tetracaine

400

Causes vasoconstriction and hypertension instead of decreased contractibility/conduction and hypotension in an overdose

Cocaine

400

What is the naming convention that can distinguish an intermediate-acting local anesthetic?

The 'i' in the name (not including the 'i' in '-caine.')

400

What do you use long-acting locals for?

Procedures in which pain management is critical, such as spinal anesthesia or nerve blocks.

500

What short-acting local anesthetics are metabolized into antigenic metabolites known as PABA?

Procaine and Benzocaine

500

What do you use intermediate-acting locals for?

General procedures within a localized area.