According to the sign shown in this post on Reddit, using methamphetamine and dental anesthetic together is lethal.
If you use Methamphetamines (Crystal Meth, Crank, Speed, Glass, Tweak, Yaba)
Within 12 hours of a dental appointment. You need to tell us because dental anesthetic will Kill You.
- Is this true?
- What's the mechanism?
- What about methylphenidate, which is used as a treatment for ADHD and is often likened to methamphetamine by laypeople?