Abstract
ObjectiveTo investigate prescription patterns of combined oral contraceptives (COC) among psychotropic drug users compared to non-psychotropic drug users in routine clinical practice in Europe. Study designA pooled analysis of three large, prospective, multinational cohort studies including women with a new prescription of COC from 12 European countries. We calculated standardized mean differences (SMD) to investigate whether the status of psychotropic drug use (use/no use) or the psychotropic drug class (psycholeptics/psychoanaleptics) is associated with the healthcare professional’s choice of a specific type of COC progestin. ResultsOur analysis comprised 143,069 non-psychotropic drug users and 2174 psychotropic drug users. Progestins with the highest frequency in the cohorts were levonorgestrel (non-psychotropic drug users: 33.8%; psychotropic drug users: 32.4%), nomegestrol/nomegestrol acetate (non-psychotropic drug users: 19.1%; psychotropic drug users: 26.4%), and drospirenone (non-psychotropic drug users: 15.9%; psychotropic drug users: 14.8%). SMD analysis indicated no substantial differences in COC prescription patterns between the two cohorts. However, we observed association signals for users of the herbal antidepressant St. John’s wort in that those individuals more often received a prescription for drospirenone and less frequently for nomegestrol/nomegestrol acetate compared to non-psychotropic drug users. ConclusionsPsychotropic drug user status does not seem to affect healthcare professionals’ decisions when prescribing COC. However, limited evidence suggests that the risk for drug interactions might differ by progestin type, and some COC might be more suitable for psychotropic drug users than others. Specific guidelines should be conveyed to healthcare professionals to assist them in contraceptive counseling. ImplicationsWith exception of St. John’s wort, our analysis showed no differential prescription behavior of combined oral contraceptives in psychotropic drug users and non-users. However, healthcare professionals should carefully consider psychotropic drug use in contraceptive counseling as it is still unclear whether drug interactions exist when co-administered with certain oral contraceptives.
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