Local anaesthetic

What is Local anaesthetic?

A local anesthetic (LA) is a drug that causes reversible local anesthesia, generally for the aim of having a local analgesic effect, that is, inducing absence of pain sensation, although other local senses are often affected as well. Also, when it is used on specific nerve pathways (local anesthetic nerve block), paralysis (loss of muscle power) can be achieved as well.

Clinical local anesthetics belong to one of two classes: aminoamide and aminoester local anesthetics. Synthetic local anesthetics are structurally related to cocaine. They differ from cocaine mainly in that they have a very low abuse potential and do not produce hypertension or (with few exceptions) vasoconstriction.

Local anesthetics are used in various techniques of local anesthesia such as:

  • Topical anesthesia (surface)
  • Infiltration
  • Plexus block
  • Epidural (extradural) block
  • Spinal anesthesia (subarachnoid block)

Questions and answers on "Local anaesthetic"

I am facing constipation problem from past few months. I saw blood during my bowels and I doubt if I have piles problem. If it is so, is there a...

doctor1 MD

Brief Answer:
Surgery is the permanent solution to PILES.

Detailed Answer:
Hi....

Thank you for your post.
I have read your query and understand...

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I am in 9th month of my pregnancy. I am suffering from painful piles since yesterday. Unable to sit stand sleep properly. please suggest cure as...

doctor1 MD

Brief Answer:
see detailed description

Detailed Answer:
Hi XXXXXXX I hope you were benefitted from our previous discussion.
Acute constipation can...

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I had a knee replacement 14 months ago, I still have significant pain, I had Pt for a total of 16 weeks. My surgeon now wants to aspirate for...

doctor1 MD

Brief Answer:
Because local anaesthetic infiltration is equally painful.

Detailed Answer:
Hi,
Thanks for choosing healthcaremagic for posting your...

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