Below are the main rubriks (i.e strongest indications or symptoms) of Nux Vomica in traditional homeopathic usage, not approved by the FDA.
Irritable bladder; from spasmodic sphincter
Frequent calls; little and often
Haematuria ( Ipecacuanha Ipec.; Terebe.) Ineffectual urging, spasmodic and strangury
Renal colic extending to genitals, with dribbling urine
While urinating, itching in urethra and pain in neck of bladder.
Constrictive pain in testicles
Male; Easily excited desire
Emissions from high living
Bad effects of sexual excesses
dysmenorrhoea, with pain in sacrum, and constant urging to stool
Inefficient labor-pains; extend to rectum, with desire for stool and frequent urination ( Lilium Tigrinum Lil.) Desire too strong
Metrorrhagia, with Sensation as if bowels wanted to move.