Definition of Local Anaesthetics
Local Anaesthetics – Definition: Local anaesthetics are drugs that temporarily block the sensation of pain (and sometimes other sensations) in a specific area of the body without affecting consciousness. They act by reversibly blocking nerve conduction, mainly by inhibiting sodium ion channels in the nerve membrane.
Mechanism of Action: They prevent the generation and transmission of nerve impulses by blocking voltage-gated sodium channels, which stops the propagation of action potentials along the nerve.
Examples of Local Anaesthetics:
✅ Ester-type Local Anaesthetics:
🔸Procaine
🔸Benzocaine
🔸Tetracaine
✅ Amide-type Local Anaesthetics:
🔸Lidocaine (Xylocaine)
🔸Bupivacaine
🔸Mepivacaine
🔸Prilocaine
Uses:
🔸Minor surgical or dental procedures
🔸Nerve blocks and epidural anaesthesia
🔸Topical application for skin or mucous membrane numbing
Example Sentence:
Lidocaine is a commonly used local anaesthetic for minor surgical procedures and dental treatments.
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In Hinglish style:
Local Anaesthetics – Definition: Local anaesthetics wo drugs hote hain jo body ke ek particular area me dard (pain) ka ehsaas temporarily band kar dete hain, bina patient ko behosh kiye. Ye drugs nerve signals ko block kar dete hain by stopping the sodium channels in nerve cells.
Mechanism of Action: Ye voltage-gated sodium channels ko block karte hain, jisse nerve impulse conduct nahi hoti, aur pain ka signal brain tak nahi ja pata.
Examples of Local Anaesthetics:
✅ Ester-type Local Anaesthetics:
🔸Procaine
🔸Benzocaine
🔸Tetracaine
✅ Amide-type Local Anaesthetics:
🔸Lidocaine (Xylocaine)
🔸Bupivacaine
🔸Mepivacaine
🔸Prilocaine
Uses:
🔸Minor surgery ya dental procedure me
🔸Nerve block aur epidural anaesthesia ke liye
🔸Topical use ke liye (skin ya mucous membrane ko numb karne me)
Example Sentence:
Lidocaine ek commonly used local anaesthetic hai jo chhoti surgeries aur dental treatments me use hota hai.
