Novacaine seizure

My son was having 4 teeth pulled today. He was given Novacaine for the removal. Just as the doctor left the room after shooting him up with the novacaine on both sides of his mouth top and bottom he went unconsious and had a seizure. The doctor stated it was because he fasted and was nervous. He has never had a seizure before but it was deffinately not just passing out. What should I watch for as future side effects of this treatment?

[Innova]

This is only somewhat related to the deep concern you have for your child.

I had a lidocaine (?) injection which was one of dozens over the years.
One such numbing up caused me heart palpitations and my face went white. The doctor gave me oxygen to breathe while I got over it.  I really can't say why that one injection caused that reaction after having so many many over the years.

[ascmyworld]

it just might be from the epinephrine in it. He could be sensitive to it. I am and they say that it is a normal reaction but I still don't like it. Tell them you want your son to have carbocaine or anything else without the epi. If you decide to go to another dentist tell them what happened to him and say you don't want him to have it.

[Effeb]

Local anesthetics can cause seizures, I think some of the local anesthetic must have been injected inadvertently into an artery. Usually very high doses are needed to produce a seizure but if it is injected directly into an artery going into the head and neck area much smaller doses are required.

[ELl05]

Novacaine has Been off the market for years, due to a high precent of people being allergic. Thus being said, I doubt the local your son was given was novacaine, probably lidocaine.