how do painkillers,paracetamol ect, nkow witch pain u want alleviating?

Answer 1

Some do - Some don't

Some drugs attach themselves to a targeted area. For example supposing you took imigran for a migraine, it targets the H5 receptors in the brain only. The medication is designed to apply itself there. Mind you it can have side effects like tingly fingers etc, so plainly all drugs have a potential to affect other parts of the body to some degree no matter where they are targeted.

I am currelty taking anti inflammatories for severe elbow pain. How does the tablet know it's my elbows. It doesn't, it simply suppresses inflammation wherever it happens to be. These are taken orally so travel throughout the system dampening down inflammation wherever it goes.

Some people do get round this by using 'topical' treatments where you rub say ibuprofen gel on a specific painful area which gives relief at the site it is rubbed into.

Answer 2

paracetamol works to reduce prostaglandin levels in the brain. prostaglandins are involved in trigerring pain and inflammation in the body (prostaglandins warn of danger and initiate healing).
most other painkillers work outside the brain to inhibit the enzyme cyclo-oygenase (cox) at sites of inflammation and pain. cox is involved in production of prostaglandins.
where there is inflammation and pain you get production of cox which in return produces prostaglandins. paracetamol works in the brain to reduce prostaglandin levels which alleviates the pain you feel.
most other painkillers work at the site of pain and inflammation to inhibit the enzyme cox which will reduce the level of prostaglandins, this reduces the pain stimulation.

Answer 3

we use paracetamol for the general pains we feel. but there are many specific analgesics for certain pains like: arcoxia for pain in the joints, calpol for simple pain and fever, advil for some headaches, dolfenal for headaches, etc.

Answer 4

They just alleviate all of them at the same time.

Answer 5

chemical compunds in the paracetemol attach to pain receptors in various parts of the body.

Answer 6

i think they stop pain signals from the brain so they dont need to know where the pain is just recognise the signals

Answer 7

the solve all pains but because you cant feel pains they cant be solved so they dont feel any better, they heel all the pains but you dont ntice the ones that you cant fel to begin with

Answer 8

They dont, they circulate in the blood and kill off any aches and pains...;