Big Ben - Nose Napalm

The OG of smelling salts. Certainly not for the faint-hearted, but if you are an absolute animal and want something stronger, try Revive The Dead here. 

Smelling salts are used to arouse consciousness because the release of ammonia (NH3) gas that accompanies their use irritates the membranes of the nose and lungs and thereby triggers an inhalation reflex. This reflex alters the breathing pattern, resulting in improved respiratory flow rates and possibly alertness.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2579444/