The emission of SEMEN and seminal fluid during the act of preparation for sexual intercourse, i.e. before there is penetration, or shortly after penetration.

The emission of SEMEN to the exterior, resulting from the contraction of muscles surrounding the male internal urogenital ducts.

Physiological disturbances in normal sexual performance in either the male or the female.

Disturbances in sexual desire and the psychophysiologic changes that characterize the sexual response cycle and cause marked distress and interpersonal difficulty. (APA, DSM-IV, 1994)

Biological actions and events that constitute the functions of the NERVOUS SYSTEM.

A local anesthetic that is similar pharmacologically to LIDOCAINE. Currently, it is used most often for infiltration anesthesia in dentistry.

The inability in the male to have a PENILE ERECTION due to psychological or organ dysfunction.

The external reproductive organ of males. It is composed of a mass of erectile tissue enclosed in three cylindrical fibrous compartments. Two of the three compartments, the corpus cavernosa, are placed side-by-side along the upper part of the organ. The third compartment below, the corpus spongiosum, houses the urethra.

The sexual union of a male and a female, a term used for human only.

Compounds that specifically inhibit the reuptake of serotonin in the brain.

A furancarbonitrile that is one of the SEROTONIN UPTAKE INHIBITORS used as an antidepressant. The drug is also effective in reducing ethanol uptake in alcoholics and is used in depressed patients who also suffer from tardive dyskinesia in preference to tricyclic antidepressants, which aggravate this condition.

Sexual union of a male and a female in non-human species.

Glands situated on each side of the prostate that secrete a fluid component of the seminal fluid into the urethra.

Sexual activities of animals.