Which of the following are natural local anesthetics?

Which of the following are natural local anesthetics? Correct Answer Cocaine

Natural anesthetic is cocaine. Due to its uses in drug abuse, this is not used anymore in practices. Synthetic nitrogenous local anesthetics are procaine, benzocaine, lignocaine, cinchocaine, bucricaine. Synthetic non-nitrogenous will be benzyl alcohol and propanediol. Clove oil, phenol, chlorpromazine can also be used as a local anesthetic.
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