Drug abuse – 2

Published on 23/05/2015 by admin

Last modified 23/05/2015

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12 Drug abuse – 2

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1. Under the Misuse of Drugs Regulations (1985) amphetamines are Schedule 1 drugs.
2. Amphetamine withdrawal is a recognized phenomenon.
3. The heritability of cannabis abuse is 60–80%.
4. Intravenous injection of a mixture of heroin and cocaine is called a ‘speedball’.
5. Ecstasy increases the release of both dopamine and serotonin.
6. Ecstasy can cause a withdrawal state.
7. MDMA is neurotoxic in humans.
8. Hallucinogens have a significant effect on memory.
9. A minimum of 25 mg of LSD is needed to induce psychedelic effects.
10. Ataxia is a feature of LSD intoxication.
11. LSD is a 5-HT_2A receptor antagonist.
12. 2% of smokers quit on brief advice from clinicians.
13. Diamorphine can be prescribed by any doctor for the treatment of addiction.
14. 4% of opiate addicts will die in 2 years.
15. Intravenous administration of unadulterated heroin can cause seizures.
16. Cramps are a feature of opiate withdrawal.
17. Heroin is more potent than methadone.
18. It is important to prescribe methadone to patients presenting to A&E with a history of heroin addiction and methadone maintenance treatment, in order to avoid withdrawal symptoms.
19. In heroin addiction, inspection of the arms could reliably exclude intravenous use.
20. Lofexidine is an opioid with agonist and antagonist properties.
21. Buprenorphine is a GABA antagonist.
22. PCP causes a more prolonged psychotic reaction than LSD.
23. Solvent abuse has a peak incidence in boys aged 17–21 years.
24. Solvent abuse commonly leads to physical dependence.
25. Anabolic steroids increase the level of low-density lipoproteins.