Neurotransmitters are chemical substance that acts like as chemical mediator or mediator for transmission of impulse of nerve. They are also known as messenger. Because they transfer chemical impulse nerve to nerve during any sensation is occurred .They sometimes called neuron-modulators .They are generally classify in three groups. They are amino acid group, amines group, and others.
GABA, lysine, glutamate, aspartame, nor adrenaline, dopamine, serotonin, histamine, nitric oxide, acetylcholine are some example of neurotransmitter. Some of them are very essential for many performance of our body. The balance of neurotransmitter should be exactly maintained by body. Generally when the amount of serotonin is decreased the normal condition of mind is not continued. The depression level of mind is increased. It takes an IV or oral dosage of serotonin to prevent of this problem.
Depending upon the function of neurotransmitter –it classified into to category.
· Excitatory neurotransmitters
· Inhibitory neurotransmitters
The excitatory neurotransmitter may be responsible for impulse conduction from the pre synaptic neuron. And inhibitory neurotransmitter inhibits the conduction on the impulse from the pre synaptic neuron. To closer the post synaptic neuron. Both types of neurotransmitters are responsible for our normal body activity. They also take part in any type of drug action actively .for example –when a drug give his therapeutic effete, it may block his specific receptor or his commander ion channel .the full processes is control by some neurotransmitter. Some neurotransmitters are responsible for binding with the specific receptor and some block one. And other act as blocker or inhibitor of a receptor. For that reason it can say that they are the vital component of any drug action. Neurotransmitters are carry chemical impales by many ion .they carry and bind with specific one. Then our tissue is filling it.