TYPES OF DRUGS

Opiates or opium

Narcotics is a natural group that is often used by inhaled (inhalation).

Papaver somniferum (Apyun) is a seasonal wild plants commonly known as the 'Opium' or 'Poppy'.

side effects when misused :

If someone is addicted, then it poppy would become an inherent part in his life. His body will not be able to again perform its functions without taking the usual dose of opium. He will feel tremendous pain if you can not get it. His health will decrease drastically. The muscles of the addict will wither away, his memory weakened and decreased appetite. Both eyes had cyanosis and weight will continue to shrink. 

Morphine

Morphine is in a group of drugs called narcotic pain relievers.

Morphine is used to treat moderate to severe pain. It works by dulling the pain perception center in the brain. Short-acting formulations are taken as needed for pain. Extended-release formulations are used when around-the-clock pain relief is needed.

Morphine is not for treating pain just after surgery unless you were already taking it before the surgery.

Morphine may also be used for purposes other than those listed in this medication guide.

side effects of morphine :

Addiction : Morphine is a highly addictive drug potential. This can cause psychological dependence and physical dependence and tolerance, with a potential identical to heroin addiction.

Tolerance : Tolerance to the analgesic effects of morphine fast enough. There are several hypotheses about how tolerance develops, including opioid receptor phosphorylation (which will change the conformation of the receptor), a functional decoupling of G-protein receptors (leading to receptor desensitization), mu-opioid receptor internalization and / or receptor down-regulation (reducing the number of receptors are available for morphine to act on), and upregulation of the cAMP pathway (counterregulatory mechanisms of opioid effect) (to review this process, see Koch and Hollt.) CCK may mediate some counter-regulatory pathways responsible for opioid tolerance. CCK-antagonist drugs, particularly proglumide, has been shown to slow the development of tolerance to morphine.

Withdrawal : Withdrawal symptoms associated with morphine addiction are usually experienced shortly before the next scheduled dosing time, sometimes in as early as several hours (usually between the hours of 6-12) after the last administration. Early symptoms include watery eyes, insomnia, diarrhea, runny nose, yawning, dysphoria, sweating and in some cases a strong drug addiction. Severe headaches, anxiety, irritability, loss of appetite, body aches, severe abdominal pain, nausea and vomiting, tremors, and even drug craving appear stronger and more intense as the syndrome lasts. Major depression and vomiting are very common. During the period of acute withdrawal of systolic and diastolic blood pressure increased, usually beyond pre-morphine levels, and increased heart rate, which can potentially cause heart attacks, blood clots, or stroke.

Hepatitis C : Researchers at the University of Pennsylvania have demonstrated that morphine withdrawal complicates hepatitis C by pressing IFN-alpha-mediated immunity and increasing viral replication. Hepatitis C virus (HCV) is common among injection drug users. This association has piqued the interest in determining the effects of drug abuse, particularly morphine and heroin, on the progression of the disease. The discovery of such an association would impact treatment of both HCV infection and drug abuse.

Overdose : morphine overdose occur intentionally or accidentally take too much out of it. A large overdose can cause shortness of breath and death by respiratory depression if people do not get medical attention or an antidote (naloxone) immediately.

Constipation :Like loperamide and other opioid, morphine work on the myenteric plexus in the intestinal tract, intestinal motility, causing constipation. Gastrointestinal effects of morphine are mediated primarily by u-opioid receptors in the gut.

HEROIN 

Heroin has a strength that is two times more potent than morphine and is the type most commonly abused opiates. Heroin, which is pharmacological similar to morphine cause people to become drowsy and erratic mood swings. Although the manufacture, sale and possession of heroin is illegal, but attempted heroin remains available for patients with terminal cancer because the analgesic and euphoric effects of his good.

Short effect :

Effects occur immediately after a brief heroin use and will disappear in a few hours. After the injection of heroin, users feel the euphoria that accompanied the warming of the skin, dry mouth, and difficulty moving the arms and legs. Users also feel drowsy state between the conscious and thus impaired mental functioning due to depression of central nervous system. Another effect that occurs is the quiet voice when speaking, way slow road, pupils constrict, the eyelid down, it is difficult to see at night, vomiting, and constipation.

Effect Continues :
Further effects from the use of heroin appear after repeated use within a certain time frame. Chronic effects may include damage to blood vessels, infection of the vessels and heart valves, abscesses, cellulite, and liver disease. Complications in the lungs can be various kinds of pneumonia, may occur due to poor health abusers, and also because the effects of respiratory depression. In addition to the effects of heroin, a preservative used may be substances that are not entirely soluble so it can clog blood vessels of the lungs, liver, kidney, and brain. This can cause infection or death of cells in vital organs.With the use of a habit, your body will tolerate heroin. This means the abuser must use more heroin to get the effect with the same intensity.
At higher doses, and used in a long time, physical dependence and mental health began to happen.With this dependence, the body has adapted to the presence of drugs and addiction symptoms began to occur when use is stopped or postponed.Symptoms of addiction that arise within a few hours after the last use of a sense of difficulty sleeping, muscle and bone pain, insomnia, diarrhea and vomiting, cold sweats, and leg cramps.
Cannabis 

Cannabis which in Latin is called cannabis, such as having some form of tobacco leaf that is green, there are five fingers, seven, or nine pieces of leaves in each leaf stem. In the latest research on marijuana, found there are 3 types of cannabis plants namely: Cannabis sativa, Cannabis indica, and Cannabis Ruderalis.
side effects when misused :  abuse of cannabis in low doses and were? The impact is also as dangerous, such as having Hilarity (make a scene), experiencing euphoria oquacous (burst of euphoria - laughing non-stop), change the perception of space and time, reducing the ability of coordination, and memory considerations, have increased the sensitivity of visual and auditory (but more toward hallucinations), experience conjunctivitis (inflammation of the respiratory tract), and had bronchitis (inflammation of the lungs - pulmonary).
abuse of cannabis with high doses, the effects are caused by cannabis abusers will experience an illusion (delusion), delusional (too much emphasis on the belief that is not real), depression (mental pressure), confusion, experiencing alienation (alienation), and hallucinations (sometimes, also accompanied by psychotic symptoms such as fear and aggression).

abuse of cannabis on a regular basis and also be fatal form of prolonged physical and psychological disorders. Physical disorders such as: having pneumonia - lung, suffered respiratory irritation and swelling, suffered damage to the coronary blood flow and likely to cause an attack of chest pain, a higher cancer risk (because of its carcinogenic found in marijuana are much higher than in tobacco ), decreased immune system so susceptible to disease (due to abuse of marijuana suppresses the production of leukocytes), and declining levels of both hormones growth hormone thyroxine (thyroid hormone) and sex hormones in male - male and female. 

That's some kind of drug that is often misused.there are many more types of drugs that have not I write.and any type of drugs that are out there rest assured that drug abuse can damage health,by avoiding the drugs we can live better and with a brighter future.So from now on SAY NO TO DRUGS.
source: from many sources