The effects of ____ drugs on nervous tissues makes them useful as local anesthetics.

Question

Quizplus · Accepted Answer

Class I drugs, including lidocaine and bupivacaine, work by blocking voltage-gated sodium channels in nerve cells, preventing the generation and transmission of nerve impulses. This results in a loss of sensation in the targeted area, making them useful as local anesthetics. Class II drugs primarily work on calcium channels and are used as antiarrhythmic agents, while Class III drugs affect potassium channels and are used to treat arrhythmias. Class IV drugs have calcium channel blocking effects similar to Class II drugs, but also affect sodium channels and are used primarily for hypertension and angina.

The Effects of ____ Drugs on Nervous Tissues Makes Them