Are there alternatives using novocain (procaine) if the patient has a problem with "...cain" drugs? patients heart rate spikes when given novocain (procaine)

Most : Most likely, the patient's heart rate increases due to the Epinephrine in the dental carpule, not the actual anesthetic itself. A dental injection such as 3% Carbocaine has no Epinephrine in it, so there should be no reponse like the one described. Epinephrine is used in the injection to decrease bleeding at the site of injection for surgical procedures and to make the anesthetic effect last longer by constricting the blood vessels in the area. Hope this info helps.

Carbocaine: The reason your heart rate spikes with novocaine is due to the Epinephrine which acts like adrenaline to speed up your heart. Carbocaine does not contain Epinephrine which will not cause heart rate spikes.