0 a muscle that helps another muscle perform a particular function effectively --
Piperonyl butoxide, a synergist, is often used in combination with pyrethrin, making the mixture more effective by not allowing the insect's system to detoxify the pyrethrin.
Neem based products are considered effective synergists.
It is often used in combination with tropicamide as a synergist when tropicamide alone is not sufficient.
It is innervated by the deep peroneal nerve and acts as both an antagonist and a synergist of the tibialis posterior.
Amitraz has been found to have an insect repellent effect, works as an insecticide and also as a pesticide synergist.
Activity of pyrethrum and 1st generation pyrethroids is often enhanced by addition of the synergist piperonyl butoxide (which itself has some insecticidal activity).
Its synergists are teres minor and the deltoid.
It has no intrinsic pesticidal activity itself, but rather is a synergist enhancing the potency of pyrethroid ingredients.
