They can act in a number of ways, both presynaptically and postsynaptically. They can affect how vescicles release neurotransmitters, how neurotransmitters are cleaved/reuptake, they can block receptors, destroy receptors, agonistically bind to receptors which mimics the neurotransmitter. These are a few.
Gamma-aminobutyric acid is also known as GABA. It appears to decrease synaptic transmission and is actually used in drugs called GABAergic drugs or GABA analogues. These drugs are used as hypnotics, anticonvulsants, tranquillizers and sedatives.
Excitatory psychoactive drugs such as nicotine and cocaine primarily affect the central nervous system. They increase post-synaptic transmissions and may result in addictions and substance abuse. These stimulants increase the alertness of the user by mimicking the action of neurotransmitters or delaying the breakdown of neurotransmitters. They can also affect the transmission of optical signals in the thalamus of the brain.
Drugs can interfere with the normal communication processes in the brain by altering the levels of neurotransmitters, disrupting synaptic transmission, and causing oxidative stress. Prolonged drug use can lead to neuronal dysfunction, cell death, and ultimately, the loss of brain cells.
synaptic gaps
Acetylcholinesterase (AChE) is an enzyme that catalyzes the breakdown of the neurotransmitter acetylcholine into acetate and choline in the synaptic cleft. This process is essential for terminating synaptic transmission, allowing neurons to reset and preventing continuous stimulation of the postsynaptic receptor. By regulating acetylcholine levels, AChE plays a crucial role in muscle contraction, learning, and memory. It is also a target for certain drugs and toxins, which can inhibit its function and disrupt normal neural communication.
Psychoactive drugs can affect the brain by altering neurotransmitter levels, specifically dopamine, serotonin, and norepinephrine. They can also impact neural pathways and structures, leading to changes in mood, perception, cognition, and behavior. Chronic use of these drugs can disrupt normal brain functioning and lead to addiction or other long-term consequences.
I would like to know the effects of antipsycotic drugs on a patient 87yrs old who suffers from dementia.
They try to mooch your drugs.
Inotropic drugs affect the force of contraction. Chronotropic affect the rate of contraction.
ALL DRUGS will affect your performance in some sort of way.
Drugs slower the nervous system.
only the re-creational drugs affect your life. meaning the bad ones. good drugs such as medicines, help you when your sick.