DRUGS OF ABUSE
Download
Report
Transcript DRUGS OF ABUSE
المنشطات و أضرارها
PERFORMANCE ENHANCING DRUGS
1
Athletic or Performance-Related
Fitness
Agility
Balance or equilibrium
Coordination
Power
Reaction time
Speed or velocity
2
PERFORMANCE ENHANCING
DRUGS
3
Performance-Enhancing Drugs
Anabolic Steroids
Description
Drugs derived from testosterone and approved for
medical use, but often used by athletes to increase
musculature and weight.
4
Performance-Enhancing Drugs
Anabolic Steroids
Claims May enhance performance and improves physical
appearance.
Reported to increase lean muscle mass, strength, and
the ability to train longer and harder.
5
Performance-Enhancing Drugs
Anabolic Steroids
Risks Liver tumors, jaundice, fluid retention, high blood
pressure, severe acne, aggression and other
psychiatric side effects.
Men: Shrinking testicles, reduced sperm count,
infertility, baldness, and development of breasts.
Women: growth of facial hair, changes in or
cessation of the menstrual cycle, enlargement of the
clitoris, and deepened voice.
6
7
Table 5-3, p.126
Androstenedione
produced by:
1- the ovary, testes, and the adrenal cortex,
2-is a prohormone for both estrogen and testosterone..
3- Androstenedione supplementation has become popular
with male athletes because they believe they will be more
powerful.
4-Research shows no measureable effect on free or total
testosterone,
5-but HDL levels dropped and plasma estrogens rose.
6- No measurable effect has been noted on athletic
performance.
8
GYNECOMASTIA
These pictures are the “BEFORE” (left) and “AFTER” (right)
pictures of a man that had surgery to correct his case of
gynecomastia. I’m sure he thought “It won’t happen to me.”
as well! Think about it before you choose to take P.E.D.!
9
Performance-Enhancing Drugs
Androstenodione
Claims
Improves testosterone concentration, increases
muscular strength and mass, helps reduce body
fat, enhances mood, and improves sexual
performance.
10
Performance-Enhancing Drugs
Androstenodione
Risks Breast enlargement, increased risk of
cardiovascular disease and pancreatic cancer
in men, acne, male pattern baldness, and a
decrease in “good” (HDL) cholesterol.
In women, high testosterone levels can cause
increased body hair, deepening of the voice,
and other male characteristics.
11
RISKS OF P.E.D.
Steroid induced acne
Anti-hypertensive behaviors
Hypertension or fatigue
Chronic gonadotrophin
Increased level of female hormones in a man’s body
Testicular atrophy
Induced gynecomastia
Presence of abnormally large breasts in men
Increased use of other drugs to mask symptoms
12
SYMPTOMS OF P.E.D. USE
Rapid weight gain with larger muscle
mass
Aggressiveness
Jaundice/Skin color change
Purple or red spots on body
Swelling of feet and legs
Shaking and/or trembling
Persistent body odors
Severe acne breakouts with
abnormally oily skin
13
DOES THIS LOOK APPEALING TO
YOU?
14
15
CNS Stimulants
COCAINE
CRACK
METHAMPHETAMINE
16
17
Stimulants
Description: A group of synthetic or plant-derived drugs
that increase alertness and arousal by stimulating the
central nervous system.
Medical Uses:
Short-term treatment of obesity,
narcolepsy, and hyperactivity in children No medical use
for methamphetamine
Method of Use: Intravenous, intranasal, oral, smoking
Types of Stimulant Drugs
1- Cocaine Products
Cocaine Powder (Generally sniffed, injected, smoked on foil)
“Crack” (smoked)
19
Types of Stimulant Drugs
2- Amphetamine Type Stimulants (ATS)
Amphetamine
Dexamphetamine
Methylphenidate
Methamphetamine
“Speed”
“Ice”
“Crank”
“Go Fast”
20
Methamphetamine vs. Cocaine
Cocaine half-life: 1-2 hours
Methamphetamine half-life: 8-12 hours
Cocaine and the amphetamines have very similar effects on
mood, patterns of abuse, the type of dependence produced,
and their toxic effects.
Cocaine paranoia: 4 -8 hours following drug cessation
Methamphetamine paranoia: 7-14 days
Methamphetamine psychosis - May require medication/hospitalization
and may not be reversible
Neurotoxicity: Appears to be more profound with amphetamine-like
substances, rapid formation of lesions
Acute Stimulant Effects
Psychological
Increased energy
Increased clarity
Increased competence
Feelings of sexuality
Increased sociability
Improved mood
Powerful rush of euphoria intravenous only
freebase and
Acute Stimulant Effects
Physical
Increased heart rate
Increased pupil size
Increased body temperature
Increased respiration
Constriction of small blood vessels
Decreased appetite
Decreased need for sleep
Numbness of nasal mucosa - intranasal only
Chronic Stimulant Effects
Physical
Weight loss/anorexia
Sleep deprivation
Respiratory system disease
Cardiovascular disease
Headaches
Severe Dental disease
Needle marks and abscesses - intravenous only
Seizure
Agitation and violence
Cocaine Hydrochloride
Crystalline white powder
Snorted in “lines” of 10-35 mg each
Adulterated w cheap local anesthetics,
stimulants, and inert white powders
Yields moderate to high blood levels
Gradual onset of effects at 15-20 min with peak at
30-60 min
26
Cocaine Hydrochloride:
Intravenous Administration
Soluble in water
Peak blood levels achieved instantaneously
Rapid onset, brief duration, intense “crash”
Rapid development of compulsive use pattern
“Speedball” when mixed with heroin to cushion the
“crash”
27
Cocaine: Mechanism of
CNS Action
Increases the synaptic concentration of dopamine and
Norepinephrine by preventing its reuptake
Dopamine agonists/replacements have not proved
therapeutically useful in addicts
28
29
30
Because…
Their Brains
have been
Re-Wired
by Drug Use
31
Partial Recovery of Brain Dopamine
Transporters in Methamphetamine
(METH)
Abuser After Protracted Abstinence
3
0
ml/gm
Normal Control
Hint: Ask about free radicals!
METH Abuser
(1 month deter)
METH Abuser
(24 months detox)
Source: Volkow, ND et al., Journal of
Neuroscience 21, 9414-9418, 2001. 32
Cocaine: Acute Effects
Euphoric mood
Increased energy, alertness
Increased sexuality
Paranoia
Increased heart rate, blood pressure
33
Cocaine: Chronic Effects
Lethargy, fatigue
Reduced attention span
Sexual dysfunction
Depression, irritability, anhedonia
Paranoid psychosis
34
Cocaine: Toxic Reactions
Cardiac arrhythmias, fibrillation
Hyperthermia- > 106º F
Convulsions, loss of consciousness
Respiratory & cardiac arrest
Abruptio placentae (miscarriage)
Fatal reactions rare, but unpredictable
35
Cocaine “Crash”
Rebound dysphoria
Agitation, restlessness
Intensifies with dosage & chronicity of use
Cravings & drug-seeking behavior
Abuse of alcohol & other drugs
Suicidal ideation, behavior
Often followed by prolonged sleep
36
Cocaine/Amphetamines
“The Runs”
DRUG TAKING
CRAVING
DRUG TAKING
The Blues
FATIGUE
DEPRESSION
HYPERPHAGIA
sleep
CRASH
CRAVING
DRUG TAKING
CRAVING
DRUG TAKING
37
Speed Methamphetamine powder
ranging in color from white, yellow, orange, pink, or brown
Color variations are due to differences in chemicals used to
produce it and the expertise of the cooker
Other names: Crystal, Crystal Meth, Crank, Go Fast, Zoom
38
Ice
High purity
methamphetamine crystals
or coarse powder ranging
from translucent to white,
sometimes with a green, blue,
or pink tinge color
Depends on additives and
filtering
39
Cardiac Disorders and Methamphetamine
Coronary Syndromes
Arrhythmia
Cardiomyopathy
Hypertension
Valvular Disease
40
Neurologic Disorders and
Methamphetamine Use
Headache
Seizure
Cerebrovascular
Ischemic stroke
Cerebral hemorrhage
Cerebral vasculitis
Cerebral edema
41
Respiratory Disorders and
Methamphetamine Use
Pulmonary edema
Bronchitis
Pulmonary hypertension
COPD
42
Formication
43
Formication
44
METH Use Leads to Severe Tooth
Decay!
“METH Mouth”
Source: The New York Times, June 11, 2005.
45
Methamphetamine
Psychiatric Consequences
Paranoid reactions
Permanent memory loss
Depressive reactions
Hallucinations
Psychotic reactions
Panic disorders
Rapid addiction
46
Methamphetamine Psychosis
Inpatients
No. of patients having
symptoms (%)
Psychotic symptom
Lifetime
Current
Persecutory delusion
Auditory hallucinations
Strange or unusual beliefs
Thought reading
Visual hallucinations
Delusion of reference
Thought insertion or made act
Negative psychotic symptoms
Disorganized speech
Disorganized or catatonic behavior
130 (77.4)
122 (72.6)
98 (58.3)
89 (53.0)
64 (38.1)
64 (38.1)
56 (33.3)
35 (20.8)
75 (44.6)
39 (23.2)
27 (16.1)
38 (22.6)
20 (11.9)
18 (10.7)
36 (21.4)
19 (11.3)
14 (8.3)
Srisurapanont et al., 2003
47
48
49
50
THERAPEUTIC DRUGS
Diuretics
Rapid weight loss
Boxing, wrestling, judo
Excretion or dilution of illegal substances
Overall negative impact on performance
Dehydration, hypotension, muscle cramps, electrolyte imbalance
51
THERAPEUTIC DRUGS
Opioids
Prescription pain killers most common
Allow performance while injured
75% used after injury only
Increased risk of further injury, dependence, drowsiness, mental
clouding; in high doses: respiratory depression, hypotension
52
THERAPEUTIC DRUGS
Beta-Blockers
Anti-tremor, anxiolytic effect
Shooters, ski jumpers, archery
Negative effect on endurance
Depression, bronchospasm, fatigue
53
PERFORMANCE ENHANCING DRUGS
Peptide hormones: HCG
Increases testosterone
Maintains testicular volume with anabolic steroid
use
Ovarian cysts
54
PERFORMANCE ENHANCING DRUGS
Pituitary and synthetic gonadotropins
Increases testosterone, anti- estrogenic
Ovarian cysts
Corticotropins
Increase testosterone
Rare and related to excess corticosteroids- pituitary
suppression, immunity, osteoporosis,
hyperglycemia
55
PERFORMANCE ENHANCING DRUGS
Growth hormone
Increase muscle mass & decrease fat mass
Gigantism, acromegaly, hypothyroidism, cardiac disease,
myopathies, arthritis, diabetes mellitus, impotence,
osteoporosis
56
PERFORMANCE ENHANCING DRUGS
Erythropoietin (EPO)
Stimulates RBC production
Increases oxygen carrying capacity
CVAs
Blood doping
RBC transfusion, artificial oxygen carriers
Increases oxygen carrying capacity
Allergic reactions, sludging of blood
57
FOOD SUPPLEMENTS
76-100% of athletes use vs. 50% general population
May or may not contribute to enhanced
performance
58
WHAT DO WE HAVE IN COMMON?
59
Questions?
60