The chemical compound amyl nitrite (here referring to isoamyl nitrite) is an alkyl nitrite. It has a characteristic penetrating odour, and produces marked effects on the human body when its vapour is inhaled. It acts as a vasodilator (expanding blood vessels and thus lowering blood pressure) and finds applications in medicine in the treatment of heart disease such as angina. Amyl nitrite is also used to treat cyanide poisoning. It induces the formation of methemoglobin which binds cyanide into non-toxic cyanomethemoglobin. When used recreationally, doses of it are often called poppers. See the article Nitrite inhalants for more information on its recreational use as an inhalant. The effects of amyl nitrite are thought to be due to the action of nitric oxide in the body.

The Risks: Side effects of sniffing room oderisers (especially repeated sniffing) may include headaches, nausea, coughing, dizziness, and in serious instances may completely pass out. Regular use can cause skin problems around the mouth and nose. If spilt,  Nitrites will burn the skin Alkyl nitrites reduce blood pressure. Making it dangerous for people with anaemia, glaucoma, breathing or heart problems.

Nitrites can be fatal if swallowed or mixing with Viagra can cause heart problems, coma, brain damage and possibly even death