Home » General 2: What happens in the kidneys?
Legenda
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Legenda

Neurotransmitters
Acetylcholine
Adrenaline
Anandamide
Dopamine
Endorfine
GABA
Glutamaat
Serotonine
Substantie P

Eiwitten / enzymen
Acetylcholinesterase
MAO
Receptor
Transporter / Heropname eiwit

 

Drugs
Alcohol
Cannabis / THC
Cocaïne
Heroïne / Morfine
Ketamine
Nicotine
Speed / Amfetamine
XTC / MDMA


Overig
Azijnzuur
Choline
Remmend signaal
Stimulerend signaal

Speed

General 2: What happens in the kidneys?

The molecules and breakdown products of the amphetamine arrive at the filter elements of the kidneys, the nephrons. The molecules and metabolites flow with the blood fluid, or plasma, through the filters (1) and become part of the primary urine. The largest part of the primary urine is then returned to the blood (2). Many of the unprocessed amphetamine molecules also re-enter the bloodstream (2).

How much of the unprocessed speed returns to the bloodstream, and how long it takes for all the speed to be removed from the blood, depends on the acidity (pH level) of the urine. If it is relatively acidic (low pH), higher levels of amphetamine remain in the primary urine and leave the body.

If it is relatively alkaline (high pH), the amphetamine is more likely to return to the bloodstream, and will therefore be filtered out of the bloodstream more slowly. It can take up to 30 hours for half of the amphetamine to be eliminated from the body.

The primary urine that is not returned to the blood becomes the final urine (3) and it will leave the body through the bladder.