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This is a very broad question and instead of getting into the science of it I will explain it simply. It like many other narcotic pain relievers is an opiate. When consumed It is metabolized and converted in your blood into other chemicals one being morphine. It is used for slightly more severe pain than a normal over the counter pain reliever can.
IF you are really interested in the science behind it I recommend starting your own personal research on a site like wikipedia.
http://en.wikipedia.org/wiki/Codeine
What else can I help you with?
How do screen time affect brain?
it gives brain damage
What has the author Moyra Williams written?
Moyra Williams has written: 'Practical Horse Psychology' 'Brain damage and the mind' -- subject(s): Brain damage, Chronic Brain Damage, Pathological Psychology, Psychopathology 'Brain damage, behaviour, and the mind' -- subject(s): Brain damage, Chronic Brain Damage, Cognition disorders, Mental Disorders, Pathological Psychology, Psychomotor disorders, Speech disorders
How does alcohol affect the mind?
It temporarily slows the operation of the brain.
Can brain damage affect the olfactory nerve?
Yes, brain damage can affect the olfactory nerve, which is responsible for the sense of smell. Damage to specific areas in the brain, such as the olfactory bulbs or frontal lobes, can lead to changes in the sense of smell or loss of smell altogether. In cases of traumatic brain injury or diseases that affect the brain, the olfactory nerve can be impacted resulting in olfactory dysfunction.
What parts of damage bacteria walls or killed bacteria are used to make?
use your brain not your mind use your mind not your brain inshort use your head
How do solvents affect your brain?
It can affect the nervous system if its fumes were inhaled. It can cause damage and/or death.
Why does ecstasy affect your brain?
it does no direct damage but affects mood, and memory
How does alcohol affect performance?
If you drink too much it can damage your brain.
Does brain damage affect when a girl will get her period?
No. Hormones determine when that happens.
How does Mercury element affect you?
the element mercury can cause brain damage of kidney damage which could be fatal
How does the process of brain piercing affect the human body and mind?
The process of brain piercing can have physical and psychological effects on the human body and mind. Physically, it can cause pain, swelling, and potential damage to the brain tissue. Psychologically, it can lead to changes in mood, behavior, and cognitive function. It is important to consider the risks and potential consequences before undergoing such a procedure.
What disease is putting you mind in a puppet?
If you really believe you can do this: some sort of brain damage.
