In addition to taking antihistamines, take multi-vitamins to boost your immune system during allergy season. 1  Cetirizine. Also known as Zyrtec, this is the best antihistamine available. 2  Loratadine. Also known as Claritin or Talavert. 3  Diphenhydramine. Also known as Benadryl.  Chlorphenamine.
Figure 7. How neurotransmitters work, part 1. Chemicals called neurotransmitters are responsible for transmitting nerve impulses across the synapse from one nerve cell to another, or from one nerve cell to a target organ or gland.
neurons pass information by neurotransmitters chemicals that activate receiving neurons these molecules neurotransmitters pass through what is called the synapse a juncti on of an axon of the first neuron close to the dendrite of a second neuron