Tonic.—A medicine promoting nutrition and giving strength to the body, as arsenic, cod liver oil, etc.
Topic or Topical.—A substance or agent for external use, applied locally, as a liniment.
Toxic.—A condition produced by a poison, as a result of an over-dose of medicine or the absorption of bacterial products.
Tricophyed.—A medicine promoting the growth of hair, as pilocarpine, cantharides, capsicum, etc.
Uterine.—A medicine acting upon the uterus, as ergot.
Vehicle.—A medicine or agent used as a medium or base for the administration of medicines, as syrups, oils, water, etc.
Vermicide.—A medicine which destroys parasitic worms, as turpentine, iron sulphate, tobacco, creosote, etc.
Vermifuge.—A medicine which expels parasitic worms, as arecoline, aloes, etc.
Vesicant.—A medicine which forms pustules containing white serum, as cantharides.
Virus.—A poison of an infectious disease, especially one found in the system of an animal suffering from an infectious disease, as hog cholera, cowpox or rabies virus, etc.