[7] The chemical has a molar mass of 148 g/mol and is easily recognizable due to its
characteristic phenyl ring and amine group. Methamphetamine is also characteristic in that it has a chiral center, giving rise to two enantiomers, a dextrorotary (R) and levorotary (L) enantiomer. [8] [9]The substance is freely soluble in water and alcohol, which makes ingestion largely variable. [10] The recreational drug is most often smoked, but may be snorted and ingested, although the latter is not as common as it is known to have a displeasing taste. Methamphetamine is known to affect the central nervous system in that it promotes a sudden increase in dopamine, otherwise known as the pleasure hormone. [11]The symptoms and possible effects of ingestion are wide and variable but most often include insomnia, hallucination and elation with low dosages. After the high, the individual may experience depression, due to the sudden drop in dopamine concentration in the individual, as well as irritability and paranoia. Overdosing on the drug may lead to myocardial infarction, stroke, cardiac arrhythmia and hyperthermia.