General anesthetics work by opening potassium channels.
It usually causes an increase in the rate and strength of the heartbeat, and a rise in blood pressure. This reaction is perceived as similar to a panic reaction. It can be unpleasant.
Local anesthesia uses medicine to block sensations of pain from a precise area of the body. Local anesthetics are usually given by injection into the body area that needs to be anesthetized. They are not injected into the bloodstream.
If it were to be accidentally injected into the It causes an increase in the rate and strength of the heartbeat, and an increase in blood pressure. This reaction is perceived as similar to a panic reaction, and although harmless for a person in reasonably good health, can be unpleasant.
Why is it important for SW to know these reactions? What connection can you make with cocaine once being a local anesthetic to effects one could possibly experience with it going into the blood stream and now being an illegal lethal drug ?