General

The organs

When you take drugs, the blood spreads them through the body – to and from all the organs.

• The lungs absorb drugs from the air (in smoke).
• The stomach and intestines absorb drugs that are eaten, drunk or taken by mouth.
• The heart pumps the blood containing the drugs through the body.
• The brain is influenced by the drugs, giving you different kinds of feelings.
• The liver processes and breaks down the drugs.
• The kidneys filter the waste matter from the drugs out of the bloodstream.