Obsessive–compulsive disorder
A form of psychotherapy called "cognitive behavioral therapy" (CBT) and psychotropic medications are first-line treatments for OCD. Other forms of psychotherapy, such as psychodynamic and psychoanalysis may help in managing some aspects of the disorder, but in 2007 the American Psychiatric Association (APA) noted a lack of controlled studies showing their effectiveness "in dealing with the core symptoms of OCD". The fact that many individuals do not seek treatment may be due in part to stigma associated with OCD.
Sexual desire
Certain medications can cause changes in the level of experienced sexual desire through “non-specific effects on general well-being, energy level, and mood”. Declining levels of sexual desire have been linked to the use of anti-hypertension medication and many psychiatric medications; such as anti-psychotic medications, tricyclic anti-depressants, monoamine-oxidase (MAO) inhibitors, and sedative drugs. However, the most severe decreases in sexual desire relating to psychiatric medication occur due to the use of selective serotonin reuptake inhibitors (SSRIs). In women specifically, the use of anticoagulants, cardiovascular medications, medications to control cholesterol, and medications for hypertension contributed to low levels of desire. However, in men, only the use of anticoagulants and medications for hypertension was related to low levels of desire. In addition to the specific type of medication being used, the amount of medications used regularly was also found to be correlated with a lowering of sexual desire. One medication that many do not realize can lower sexual desire in women is the oral contraceptive. Not every woman experiences the negative side effects of the pill, however, as many as one in four do. In addition, the pill reduces the sexual attractiveness of women by changing their estrus phase. Oral contraceptives have been known to increase the levels of sex hormone-binding globulin (SHBG) in the body. In turn, high SHBG levels have been associated with a decline in sexual desire. Though it is not used as medication, the drug methamphetamine has a strong positive effect on many aspects of sexual behaviour, including sexual desire.