However, unusually large amounts of Malathion could interact with injectable antibiotics {aminoglycosides) to cause breathing problems, with local anesthetics to interfere with their breakdown and cause systemic side effects, and with some eyedrops used to treat glaucoma (Physostigmine, Echothiophate, Demecarium, and Isoflurophate) to cause side, effects. (azmedications.com)
Physostigmine1
As an antidote for pilocarpine, physostigmine, isoflurophate, choline esters, certain species of Aminata and in cases of anticholinesterase insecticide poisoning. (nih.gov)
Diisopropyl2
Diisopropyl fluorophosphate (DFP) or Isoflurophate is an oily, colorless liquid with the chemical formula C6H14FO3P. (wikipedia.org)
Isoflurophate, the diisopropyl ester of fluorophosphoric acid, is made by reacting isopropyl alcohol with phosphorus trichloride, forming diisopropylphosphite, which is chlorinated and further reacted with sodium fluoride to replace the chlorine atom with fluorine, thus giving diisopropyl fluorophosphate. (wikipedia.org)