Summary
The effect of repeated treatment (twice a day for 14 days) with antidepressant drugs (AD): imipramine, amitriptyline, zimelidine, citalopram and mianserin on the behavioural response to apomorphine in rats (open field test) was investigated. AD studied, given alone in a single dose or repeatedly, do not change the rats behaviour. A repeated but not single-dose treatment with AD facilitates the behaviour stimulation induced by apomorphine. This facilitation is observed 2 hours after the last dose of imipramine, zimelidine, citalopram and mianserin but 72 hours after the last dose of amitriptyline.
The results presented suggest that the AD given repeatedly are able to increase the responsiveness of the brain DA system, probably the mesolimbic one.
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Maj, J., Rogóż, Z., Skuza, G. et al. Repeated treatment with antidepressant drugs increases the behavioural response to apomorphine. J. Neural Transmission 60, 273–282 (1984). https://doi.org/10.1007/BF01249099
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DOI: https://doi.org/10.1007/BF01249099