<prompt> Arsenophagists arePersons using arsenic as aboion stickPersons using arsenics as cattle poisoningPersons who can tolerate high doses of arsenic after taking it in low doses at frequent intervalsCriminals using arsenic for homicide purposes  <response>: Some people take arsenic daily as a tonic or as an aphrodisiac and they acquire tolerance to 250-300mg or more in one dose. Such people are known as arsenophagists. Ref - 