Symphytroph, wanda kuma aka sani da pymphothion, wani maganin kwari ne na organophosphorus wanda ba shi da tsari wanda ke da tasiri musamman a kan kwari na dipteran. Hakanan ana amfani dashi don sarrafa ectoparasites kuma yana da tasiri mai mahimmanci akan kwari na fata. Yana da tasiri ga mutane da dabbobi. Mai guba sosai. Yana iya rage ayyukan cholinesterase a cikin jini duka, haifar da ciwon kai, dizziness, rashin jin daɗi, tashin zuciya, amai, gumi, salivation, miosis, convulsions, dyspnea, cyanosis. A lokuta masu tsanani, sau da yawa yana tare da edema na huhu da ƙwayar ƙwayar cuta, wanda zai haifar da mutuwa. A cikin gazawar numfashi.