Cocaine-induced anxiety: alleviation by diazepam, but not buspirone,
dimenhydrinate or diphenhydramine
by
Paine TA, Jackman SL, Olmstead MC.
Department of Psychology,
Queen's University,
Kingston, Ontario, Canada.
Behav Pharmacol. 2002 Nov;13(7):511-23
ABSTRACTAClinical reports and animal experiments indicate that both cocaine administration and cocaine withdrawal increase anxiety. We investigated the ability of a number of putative anxiolytic agents to alleviate these anxiety states using the elevated plus-maze. Rats in the cocaine condition received either saline or cocaine (20 mg/kg) 40 min prior to testing; those in the withdrawal condition were tested 48 h following a chronic treatment regime (saline or cocaine 20 mg/kg per day for 14 days). Prior to testing, animals received a benzodiazepine (1.0 or 2.0 mg/kg diazepam), a serotonergic agonist (0.5 or 1.0 mg/kg buspirone), an antihistamine (50 mg/kg dimenhydrinate or 27 mg/kg diphenhydramine) or a saline injection. All drugs were administered intraperitoneally. Cocaine administration and cocaine withdrawal reduced the percentage time spent on and the number of entries into the open arms. Diazepam dose-dependently alleviated cocaine withdrawal-induced anxiety and non-significantly attenuated cocaine-induced anxiety. Buspirone, dimenhydrinate and diphenhydramine did not consistently alleviate the anxiety caused by either cocaine pre-treatment regime; in the saline conditions, however, each of these treatments was anxiogenic. In summary, benzodiazepines alleviated cocaine-induced anxiety, while future research on the ability of serotonergic and antihistaminergic drugs to alleviate these anxiety states is warranted.Diazepam (Valium)
Buspirone (Buspar)
Dopaminergic agents
The coke-craving brain
Cocaine and depression
Cocaine and the lonely rat
Diphenhydramine (Benadryl)
Dimenhydrinate (Dramamine)
Monoamines, cocaine and rats
Cocaine and artificial enzymes
Freebasing flies go hyperkinetic
01 02 03 04 05 06 07 08 09 10 11 12
13 14 15 16 17 18 19 20 21 22 23 24
Refs
HOME
HedWeb
cannabis-marijuana.com
Future Opioids
BLTC Research
Wirehead Hedonism
Paradise-Engineering
Utopian Pharmacology
The Hedonistic Imperative
When Is It Best to Take Crack Cocaine?
The Good Drug Guide
The Responsible Parent's Guide To
Healthy Mood Boosters For All The Family
