Category: Drugs acting on autonomic nervous system

Adrenergic receptor blockers may be considered in two groups: Drugs blocking mainly the β1 effects (those on the heart) with less effect on the bronchiand blood vessels (beta1-selective blockers), e.g. atenolol, practalol acebutalol, etc.PROPRANOLOLPropranolol is a non- selective β adrenergic blocker; it has also other actions like membranestabilization.PharmacokineticsPropranolol is almost completely absorbed following oral administration.…

As their name suggests, these drugs resemble sympathetic nerve stimulation in their effects;they may be divided into two groups on the basics of their chemical structure. Organ-system Effects of Activation of the Adrenergic System ADRENALINEThis is the prototype of adrenergic drugs and is produced in the body by the cells of the Adrenalmedulla and by…

Anticholinergics block the effects of acetylcholine and other cholinergic drugs at cholinergicreceptors of effector cells. Anticholinergics fall into two major families: Atropine antagonizes the effect of acetylcholine by competing for the muscarinic receptorsperipherally and in the CNS; therefore the effects of atropine are opposite to the acetylcholineeffects.Organ-system Effects:CNS: – lower doses produce sedation This drug…

Cholinergic drugs are also called parasympathomimetics because their effect mimics the effectof parasympathetic nerve stimulation. Administration of these drugs will result in an increase inthe parasympathetic activities in the systems innervated by cholinergic nerves.There are two groups of cholinergic drugs: ESTERS OF CHOLINEACETYLCHOLINE is the prototypical cholinergic agent. It functions as a neurotransmitter at allcholinergic…

There are several drugs affecting the autonomic nervous system which, for a betterunderstanding of specific drugs, are classified into groups.

The nervous system controls all the major functions of the body. It is divided into central andperipheral nervous systems. The peripheral nervous system includes the somatic andautonomic nervous systems which control voluntary and involuntary functions respectively.The ANS controls the vegetative functions of the body. These include functions like circulation,respiration, digestion and the maintenance of body…