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Category Archives for "Pharmacology"

Pharmacology is the study of pharmcokinetics and pharmacodynamics. These explain aspects like how the body handles the drugs and how the drug works in the body.

Do Cells Respond to Every Signal | No Not at All

Do Cells Respond to Every Signal | No Not at All

Cells, in general, are designed to respond to specific signals. They can do so because of receptors on their surfaces. In general, cells respond to bio-molecules like hormones, ions, vitamins, etc. They also respond to drugs, heavy metals and poisons. But, all the body cells do not respond to all the chemical signals. To put […]

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Parenteral Drug Administration| Their Types, Advantages and Disadvantages

Parenteral administration is a route of drug administration devoid of oral route. Here the drug is given from routes other than oral i.e. avoiding alimentary canal. The name Parenteral come from “para”= aside + “enteral” = intestine. Parenteral administration definition: It is a method of delivering the drug directly into the blood stream without having […]

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Muscarinic Receptors| Their Effects, Function, Agonists and Antagonists

Muscarinic-Receptors

Muscarinic receptors are the ones present in parasympathetic system. They are stimulated by acetylcholine a neurotransmitter in the nervous system. Hence they are called as cholinergic receptors beside nicotinic receptors. All the muscarnic receptors are G-protein coupled receptor types. They show their response in few seconds to minutes unlike nicotinic receptors which show response in […]

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2 Types of Nicotinic Receptors | Their Properties and functions

types of nicotinic receptors

Nicotinic receptors are a type of cholinergic receptors. In the body they are stimulated by the neurotransmitter acetylcholinesterase and butyrylcholinesterase. But unlike Muscarnic receptors they are specifically stimulated by the alkaloid nicotine. Hence they are named as nicotinic receptors. They are specifically blocked by the alkaloid D-tubocurarine (arrow poison). Structurally they are ligand gated cation […]

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5 Routes of Medication Administration

Routes of medication administration

When we visit a doctor for any disease condition, we are prescribed few medicines which are to be taken by suitable routes like by mouth or injection etc. These routes are called as routes of medication administration. One¬†mostly gets few tablets to consume but at times even syrups, ointments and even injections are given. Of […]

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