antifilarial
adjectiveMedical Definition of antifilarial
: tending to destroy filarial worms or to inhibit their growth
By 1978, the Merck pharmaceutical laboratories had isolated an effective antifilarial antibiotic, called ivermectin, which was extracted from a species of fungus.— Stanley M. Aronson, The Providence (Rhode Island) Journal-Bulletin, 23 Oct. 2000
also
: produced in response to filarial infection
… 11% of U.S. service personnel who were stationed in filariasis-endemic regions of South Vietnam had antifilarial antibodies. — Wayne Melrose and Peter A. Leggat, Military Medicine, July 2005