@Insomniac said in Lidocaine:
Were you taking it for anti aging or pain?
Against pain, for which it was mildly effective and good for sleep, too, but only initially. The mind-numbing effect it initially had was also a little scary at first and felt somewhat similar to that drag into an empty black hole of a propofol injection. However, I later didn't feel that anymore.
The positive effects waned or shifted to higher doses by about every other day. I had started at 20mg lidocaine p.o. and whilst I took up to 200mg eventually, I felt no more benefit above 60mg or 80mg. Beyond that it turned to enhanced pains and also immune suppression by both lidocaine or procaine. The procaine I didn't like even at lower doses.
To take (ox)carbazepine along with these substances would prevent their action on CRH receptors but it's possible that the latter is essential to their overall effects. Such a combination would perhaps render them mainly useless.