Reaction to certain medications. 1  Environmental irritants. 2  Poor oral hygiene. 3  Tobacco exposure or alcohol consumption. 4  Candida yeast infection (Oral Thrush) 5  Tongue inflammation, such as Glossitis. 6  Spicy foods such as habanero and jalapeÃ±o peppers contain compounds in the peppers that are correlated with white tongue.
Heroin (diacetylmorphine) is used for treatment of severe acute pain (such as severe acute pain due to myocardial infarction or heart attack, end stage cancer pain, post surgical pain, terminal illnesses etc.) in some countries (such as United Kingdom), as strong analgesic.
Two of the alkaloids, codeine and morphine, are used clinically for the relief of pain, but their use entails the risk of physical or psychologic dependence. Morphine is the standard against which the analgesic effect of newer drugs for relief of pain is measured. The opium alkaloids and their semisynthetic derivatives, including heroin, act on the central nervous system, producing analgesia, change in mood, drowsiness, and mental slowness.