1 Symptoms are due to the effects of excess acetylcholine on nicotinic and muscarinic acetylcholine receptors in the CNS, at neuromuscular junctions, and in the sympathetic, and parasympathetic nervous systems. 2  Nicotinic and muscarinic receptors have different. 3  Functions. 4  Locations.
The reason snake repellents don t work is because there is nothing intimidating to a snake about the smell of naphthalene or sulfur. Even if there were, snakes do not smell the way people traditionally assume they do. Snakes use smell as a method of information.
Protect yourself from mosquito bites. 1  Use insect repellents. 2  Repellents containing DEET, picaridin, IR3535, and some oil of lemon eucalyptus and para-menthane-diol products provide long lasting protection. 3  If you use both sunscreen and insect repellent, apply the sunscreen first and then the repellent. 4  Do not spray insect repellent on the skin ... Do not spray insect repellent on the skin under your clothing. 2  Treat clothing with permethrin or purchase permethrin-treated clothing. 3  Always follow the label instructions when using insect repellent or sunscreen.