Anesthesia
Anesthesia was the complete or partial loss of sensation induced by anesthetic drugs. Anesthetic drugs, or anesthetics, were strong sedatives used to numb a patient's response to pain, often by inducing a deep sleep immediately prior to a medical treatment, such as surgery. Anesthetics could be applied in varying degrees and forms depending on the patient's health and requirement of the medical procedure. 

Some forms of anesthetic gases were flammable and had to be stored separately from those that were not. ()

Anesthetics were frequently administered intravenously into the patient's bloodstream with a hypospray or syringe. () Anesthetics also existed in gaseous form and could be administered on a large scale through a ship's ventilation system. An example of the latter occurred when The Doctor and the ' EMH Mark II released neurozine gas to incapacitate Romulan Tal Shiar agents who had stolen the vessel. ()

Anesthetic agents
 Anesthesia gas
 Anesthizine
 Anetrizine
 Axonol
 Hyvroxilated quint-ethyl metacetamin
 Melenex
 Mexhohexital
 Nasal numbing agent
 Neurazine gas
 Neurozine
 Plasti-skin

External links 
 
 
 
 
Drugs