Sexual dysfunction related to typical and atypical antipsychotics in drug naive psychotic patients

Association Between Sexual Dysfunction and Dose of Atypical Antipsychotics: Essential to Learn the Basics

There is paucity of data on sexual dysfunction associated with atypical antipsychotics in Indian population. We estimated the prevalence of sexual dysfunction and assessed dose dependency, if any, in patients on monotherapy of atypical antipsychotics. This cross-sectional study analyzed the data from patients with F20 to F29 (International Classification of Diseases 10^th Revision, ICD-10) receiving monotherapy of risperidone (group 1), olanzapine (group 2), or quetiapine (group 3) for at least 4 weeks. The sexual function of participants was assessed using Arizona sexual experiences (ASEX) scale. Chlorpromazine (CPZ) equivalent dose and doses in terms of dose years were calculated. Kruskal-Wallis test, Mann-Whitney U-test, and Pearson correlation were used for analysis. Of the 154 subjects, 65.58% were males, with 44%, 48%, and 8% receiving risperidone, olanzapine, and quetiapine, respectively. The mean duration of treatment was 20.9 weeks. Lower ASEX scores were reported with quetiapine. The differences in mean ASEX scores between groups 1 and 2 were statistically significant for sex drive (P = .016), sexual arousal (P = .025), and overall score (P = .037). Sexual dysfunction was more frequent with risperidone (48.5%) than with olanzapine (28.4%) and quetiapine (0%). In group 1, the duration of therapy positively correlated with the mean scores of sexual desire (P = .003) and arousal (P = .033), but this was not the case for group 2 (receiving olanzapine). The mean CPZ equivalent doses were comparable between the groups (P = .064); those receiving <200 mg CPZ dose equivalents showed greater sexual impairment. We conclude that the occurrence of atypical antipsychotic-induced sexual dysfunction is not dose dependent. Olanzapine has a better safety profile in terms of sexual dysfunction, whereas the data reflecting the experience with quetiapine are insufficient.

[Sexual dysfunction associated with psychotropic drugs and treatment options]

BACKGROUND

Sexual dysfunction associated with psychotropic drugs is a threat to patient quality of life and a major reason for non-compliance. Psychotropic agents can impair the sexual response in different ways due to their neurobiological mode of action.

OBJECTIVE

Presentation of the frequencies of sexual functional disorders for selected psychopharmacological groups and the available treatment modalities.

METHODS

Literature search, selection and review of relevant studies.

RESULTS

The most relevant groups for impairments are antidepressants and antipsychotics due to the serotonin agonistic and anti-dopaminergic properties as well as the prolactin increasing characteristics. Agents with a favorable side effects profile are now available. All phases of the sexual response are affected.

DISCUSSION

The treatment of psychiatric disorders should follow a comprehensive treatment plan that anticipates a likely sexual dysfunction at the initiation of treatment. The main aim is improvement of the underlying primary disorder. Some limited evidence-based treatment strategies are available.