Permethrin the active ingredient in both is quite toxic in its own right. It has been used to kill brown snakes on guam and clearly needs to be treated with respect. There are questions of health in humans and unquestionably with children. I would NOT muck about with it. Used improperly it is lethal to snakes and small mammals. It is a class 3 (of 4) pesticide that requires CAUTION using it. PANNA lists it as a Carcinogen and is looks like it causes developmental issues as well. It is not something to be taken lightly or used with out strict adherence to the instructions.
P-A-M was not developed for reptiles BTW it is an industrial insecticide to treat clothing. It is made by the Coulston International Chemicals (CIC) under the name Cic residual pressurized insecticide no. v. it is just rebranded as P-A-M.