How a Drug Works at a Molecular Level?
Question by Mohit C: How a drug works at a Molecular level?
Say a Drug is injected in the Body with a certain quantity (usually 2 – 5 cc) contains x no of molecules. The body contains y no of cell and obviously y >> x. That means each cell will not get the molecules. Moreover there are transit loss due to adheson with arteries and vessels, and musculor absortption. Still how does it work to cure illness ?
Please suggest some good internet reference as well
Best answer:
Answer by anerasescovedo
Medicine usually doesn’t “Cure Illness” as you stated. It really masks the symptoms of the malady until the body conquers what is wrong. This can be done in a few ways.
1) The medication only reacts with certain receptors found in a certain area of the body (say the nervous system). That way pain can be endured during healing if the pain is blocked by the medicine on the receptor.
2) Often with allergies and roaming illnesses of the blood, all that is necessary for a person to feel better is a reduction of the antigen in the bloodstream. This can be accomplished if the medicine attacks, or binds to (inactivates) the antigen (like histamine) before it reaches the receptors in the body. You think the medicine went to the sinuses because they feel better, but it stopped the histamine before it reached the affected areas instead.
3) Some meds, depending on how they are absorbed by the body, can only go to the affected area. Thus quicker relief.
Enjoy!
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