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Acta Psychiatr Scand. 1988 Oct;78(4):434-41.

Prospective studies on a lithium cohort. 3. Tremor, weight gain, diarrhea, psychological complaints.

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1
Department A, Psychiatric Hospital, Risskov, Denmark.

Abstract

A cohort of manic-depressive patients given prophylactic lithium treatment were examined before treatment started and at intervals during treatment for up to 7 years. The mean lithium dosage was 23.2 mmol/d and the mean serum lithium concentration 0.68 mmol/l. About 40% of the patients were entirely free of side effects, as compared with 10% among patients treated previously with higher lithium doses and serum lithium concentrations. Tremor complaints were presented by 5% of the patients before and by 15% during lithium treatment. The frequency fell with continued treatment, and after a few years it was not higher than before treatment started. Tremor complaints were positively correlated with age and with the use of neuroleptics and antidepressants. The tremorigenic effects of lithium and antidepressants seemed to potentiate each other. Tremor complaints were more frequent at serum lithium levels over than under 0.7 mmol/l. Body weight increased during the first 1-2 years of lithium treatment and then remained constant. The average gain was 4 kg. Weight gain was positively correlated with the patients' body weight before treatment and with the concurrent administration of antidepressant drugs. The frequency of diarrhea complaints (loose stools, defecation urge) rose from 1% to 6% during the first 6 months of lithium treatment and then leveled off. The frequency rose steeply at serum lithium values over 0.8 mmol/l. During lithium administration about one tenth of the patients had psychological complaints, which might or might not have been caused by the treatment: memory impairment and concentrating difficulty, tiredness and "greyness of life", in a few cases altered taste or lowered libido and potency.

PMID:
3227963
[Indexed for MEDLINE]
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