Symphytroph, nke a makwaara dị ka pymphothion, bụ ụmụ ahụhụ na-abụghị nke organophosphorus nke na-adị irè karịsịa megide pests dipteran. A na-ejikwa ya iji chịkwaa ectoparasites ma nwee mmetụta dị ukwuu na ijiji akpụkpọ anụ. Ọ dị irè maka mmadụ na anụ ụlọ. Na-egbu egbu nke ukwuu. Ọ nwere ike ibelata ọrụ cholinesterase na ọbara dum, na-akpata isi ọwụwa, dizziness, mgbakasị ahụ, ọgbụgbọ, ọgbụgbọ, ọsụsọ, salivation, miosis, convulsions, dyspnea, cyanosis. N'ọnọdụ ndị siri ike, a na-ejikọta ya na edema pulmonary na ụbụrụ ụbụrụ, nke nwere ike ịkpata ọnwụ. Na iku ume ọdịda.