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A drug can...
alter physiological state, alter incoming sensory input and can alter mood and emotions.
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Placebo effect
A fake drug is administered to patients, containing no active drug (usually a sugar pill). Often ends in people making a remarkable recovery, demonstrating the ability of the brain to alter physiology.
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Stages of research/development
1, Drug is isolated from existing species or is synthesised in a lab. 2, Tested on animals to determine the LD50. 3, Tested on humans and some are given a placebo.
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Therapeutic window... Wide + Narrow
Wide, means safer drug as higher dose required for lethality. Narrow, means dangerous, as low dose is required for lethality, easier to overdose.
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Antacids
Al(OH)3 + 3HCl -> AlCl3 +3H2O Mg(OH)2 + 2HCl -> MgCl2 + 2H2O NaHCO3 + HCl -> NaCl + H2O +CO2 Dimethicone+alginates
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Analgesics
Mild- intercepting pain at stimulus, prostaglandins. Strong- bond to receptor sites, preventing neurotransmission.
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Strong analgesics
Heroin ester groups, non polar, allow for travel across blood brain barrier, OH groups in morphine don't.
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Depressants
Low/Moderate dose: sedation, reduced anxiety, relaxation, sense of well being. High doses: sleep, coma, unconsciousness and death.
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Alcohol
Breathalyser- acidified potassium dichromate, oxidises any alcohol in breath, dichromate ion changes to green if alcohol present. Chromatography- retention times for pure ethanol
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Other cards in this set

Card 2

Front

Placebo effect

Back

A fake drug is administered to patients, containing no active drug (usually a sugar pill). Often ends in people making a remarkable recovery, demonstrating the ability of the brain to alter physiology.

Card 3

Front

Stages of research/development

Back

Preview of the front of card 3

Card 4

Front

Therapeutic window... Wide + Narrow

Back

Preview of the front of card 4

Card 5

Front

Antacids

Back

Preview of the front of card 5
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