When injecting the drug, it will affect several aspects such as.
The physical effects. The health is weak. If use the drugs in large amounts will cause affect the brain, hallucinogenic and possibly make a danger to yourself and others.
The psychological impact, sick of mind and lack of capability for life. From the physical and the psychological effects of the drug. People will have bad health and may cause conflict in the family, its influence to the child and they will use the drugs. That's more of an issue in the society.