Indicated for Dry cough, Difficulty swallowing and hearing,ÊIrritability. Nitricum acidum is a homeopathic remedy often used for irritability and that has a particular affinity for the mouth, throat and chest. Other indications for its use include pricking pains as of a splinter in the parts, urine that is strong smelling - like horse urine, bowels constipated, with fissures in rectum and tearing pains during stools. Also violent cutting pains after stools, lasting for hours. Patients may also complain of large jagged warts. People needing this remedy are often much better from riding in a car. This homeopathic remedy is a mineral remedy. Active ingredient: Nitricum acidum [HPUS]. Inactive ingredients: Sucrose/lactose pellets.