gasses, halothane, carbon dioxide, methyl chloride, nitrous, methane, compressed air, sulfur hexafluoride, isoflurane, hcfc, nitric oxide, nitric, inhalant, chlorofluorocarbon, oxidizing agent, aerosol, magnesium sulfate, inhaled, helium, freon, nitroprusside, fluorocarbons, huffing, amyl nitrate, inhalations, methylene chloride, amonia, ventolin, oxidiser, ammonia, combustion, nitrogen, benzine, meperidine, nitrogen oxide, nonaddictive, morphine, vapor, benzocaine, nitromethane, sulfur dioxide, aminophylline, refrigerant, oxidizer, burping, hydrogen chloride, formic acid, amyl nitrite, methylamine, benzodiazepine, lignocaine, bicarbonate, carbon monoxide, trichloroethane, benzo, ipratropium bromide, suppositories, dilaudid, chlorpheniramine, propylene glycol, hydrocortisone, chemicals, flatulence, carbon disulfide, potassium chloride, topical anesthetic, hydroxyl radical, fumes, butane, simethicone, papaverine, saline, acetylene, phenobarbital, nitrogen tetroxide, calcium nitrate, inhalator, bipropellant, potassium hydroxide, oxygen, hydromorphone, anhydrous, ethyl, atarax, parathion, chloral, methyl bromide, narcotic, carbonating, propellent, hydrochloric, fumigant, oxygenator, lactate, propane, diacetylmorphine, paracetamol, decongestant, exhaust fumes, pethidine, epsom salts, ammonium chloride

inhalation anaesthetic, inhalation anesthetic, inhalation general anaesthetic, inhalation general anesthetic

laughing gas