Transcript Speed, Ice & Madness

Speed, Ice & Madness
A biology teacher’s guide to the
stimulants in 2006
Dr Edward Ogden PSM
MA MBBS BMedSc GradCertMgt FRACGP FAChAM
NIDA’s mission is to bring the
power of science to bear
on drug abuse and addiction.
Prevalence
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World wide use estimated 0.6% of population
Australia has highest prevalence in the world!
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9.1 % used at some stage
3.2% used the previous 12 months.
Average age at first use 20.8 years.
6.6% of Australian teenagers have had
experience with amphetamines
97% if IDU’s have tried stimulants
Why worry?
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Users
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little understanding of effects of drug
High risk of HIV and STD
High rate of conversion from oral to IV
Unlikely to seek help
Toxicity
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25% of users are psychotic
20% of psychoses longer than 1 month
A little neuropsychology!
Addictions & the reward pathway
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Food
Water
Sex
Nurturing
The action of stimulants
Amphetamine-type Stimulants
Cocaine
Positron Emission Tomography
www.drugabuse.gov
Normal
On Cocaine
www.drugabuse.gov
Brain on Cocaine
1-2 Min
3-4
5-6
Cocaine binding
6-7
9-10
7-8
10-20
8-9
20-30
A Brain After Cocaine
Metabolic
Activity
Long-term
Consequences
Metabolic
Activity
Amygdala
not lit up
Nature Video
Amygdala
activated
Cocaine Video
The Memory of Drugs
The good news is…
Drug Abuse is a
preventable behavior
and
Drug Addiction is
a treatable disease
… Is it
worth
the risk?
For More Information
NIDA Public Information Office:
301-443-1124
Or
www.nida.nih.gov
www.drugabuse.gov
National Clearinghouse on Alcohol and
Drug Information (NCADI):
1-800-729-6686
www.drugabuse.gov
Have you changed your mind?