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.
Heroin use can also cause an arrhythmia -- a problem with the rate or rhythm of the heartbeat. During an arrhythmia, the heart may not be able to pump enough blood to the body, and lack of blood flow affects your brain, heart and other organs. Heroin use can also cause pulmonary edema.