I have trigeminal neuralgia I'm on gabapentin and Dilantin. I was put on macronid for a bladder infection. How I'm get my shocks back. Iis it the mar?

Macrodantin (nitrofurantoin) Dilanti. Sorry about my previous misunderstanding of your question. Dilantin levels have rarely been reported to be lowered by macrodantin, (nitrofurantoin) so you should have your Dilantin level rechecked to see if that is what is going on. Also, if that is the case, you will need it rechecked after stopping Macrodantin (nitrofurantoin) because the Dilantin levels could go up again into a toxic range if you doctor had raised the dilantin.