Methamphetamine (N-methylamphetamine, desoxyephedrine) is also known as crystal meth, chalk, and ice is an extremely addictive stimulant drug that is chemically similar to amphetamine. It takes the form of a white, odourless, bitter-tasting crystalline powder.

In the United States, methamphetamine hydrochloride, under the trade name Desoxyn, has been approved by the FDA for treating ADHD and obesity in both adults and children; however, the FDA also indicates that the limited therapeutic usefulness of methamphetamine should be weighed against the inherent risks associated with its use. Methamphetamine is sometimes prescribed off-label for narcolepsy and idiopathic hypersomnia. In the United States, methamphetamine’s levorotary form is available in some over-the-counter (OTC) nasal decongestant products.

Those who take Methamphetamine (Crystal Meth)
knows it has some physical effects on the body hence the drug must not be abused. The physical effects of taking methamphetamine can include loss of appetite, hyperactivity, dilated pupils, flushed skin, excessive sweating, increased movement, dry mouth and teeth grinding (leading to “meth mouth”), headache, irregular heartbeat (usually as accelerated heartbeat or slowed heartbeat), rapid breathing, high blood pressure, low blood pressure, high body temperature, diarrhea, constipation, blurred vision, dizziness, twitching, numbness, tremors, dry skin, acne, and pale appearance.
Methamphetamine that is present in a mother’s bloodstream can pass through the placenta to a fetus and can also be secreted into breast milk. Infants born to methamphetamine-abusing mothers were found to have a significantly smaller gestational age-adjusted head circumference and birth weight measurements. Methamphetamine exposure was also associated with neonatal withdrawal symptoms of agitation, vomiting and fast breathing. This withdrawal syndrome is relatively mild and only requires medical intervention in approximately 4% of cases.