Xenon gas is already used in medicine as an anesthetic and medical imaging agent. Research has also suggested that xenon could help protect the brain, and some studies have experimented with using ...

Local anesthetics such as lidocaine block pain effectively, but they also impair motor and autonomic functions by indiscriminately blocking sodium channels in all neurons. Binshtok et al.

performed a single-blind, randomized, prospective study to investigate whether topical lidocaine application by means of a lollipop could provide efficacious local anesthesia. Fifty patients ...