Symphytroph, izwi kandi nka pymphothion, ni udukoko twangiza udukoko twangiza udukoko twangiza udukoko twangiza. Ikoreshwa kandi mukurwanya ectoparasite kandi igira ingaruka zikomeye kubisazi byuruhu. Ni ingirakamaro ku bantu no ku matungo. Uburozi bukabije. Irashobora kugabanya ibikorwa bya cholinesterase mumaraso yose, igatera umutwe, umutwe, kurakara, isesemi, kuruka, kubira ibyuya, amacandwe, miose, guhungabana, dyspnea, cyanose. Mu bihe bikomeye, bikunze guherekezwa no kuribwa mu bihaha no mu bwonko, bishobora gutera urupfu. Mu kunanirwa guhumeka.