alcohol abuse · Part 2

Depressants, Hallucinogens Bhang (Marijuana), Ganja, Charas Stimulating action on the CNS and affects the cardiovascular system Table . Classification of drugs XII Std Biology-Zoology Chapter- XII Std Biology-Zoology Chapter- Human Health and Diseases Fig. . Cannabis sativa (Hemp plant) Cocaine is a white powder that is obtained from the leaves of the coca plant, Erythroxylum coca . It is commonly called coke or crack. Cocaine causes serious physical and psychological problems including hallucinations and paranoia . The other plants with hallucinogenic properties are Atropa belladonna and Datura (Fig. . and Fig. . ) . Fig. . Atropa belladonna Fig. . Datura Drugs like methamphetamine, amphetamines, barbiturates, tranquilizers, Lysergic acid diethylamide (LSD) are normally used as medicine to treat patients with mental illness like depression and insomnia and are often abused. Tobacco is smoked, chewed and used as snuff. It increases the carbon monoxide content of blood and reduces the concentration of haem bound oxygen, thus causing oxygen deficiency in the body. Tobacco contains nicotine, carbon monoxide and tars, which cause problems in the heart, lung and nervous system. Adrenal glands are stimulated by nicotine to release adrenaline and nor adrenaline which increases blood pressure and heart beat.