LOCAL ANAESTHESIA Composition & Syringes
Dentstudy Editorial Team1 min read
Updated 14 Aug 2026

LOCAL ANAESTHESIA
📌 IMPORTANT QUESTION & ANSWER
Q1. Define Syringe.
Ans. It is the vehicle by the contents of the anesthetic cartridge are delivered through the needle to the patient.
Q2. Classify individual composition of local anesthetic solution.
Ans.
- Local anesthetic 2%
- Adrenaline 1:80000 (Vasoconstrictor)
- Methylparaben- 1 mg (preservative)
- Thymol -20 mg (Fungicidal)
- Sodium metabisul phite-0.5 mg (reducing agent)
- Sodium chloride-6 mg (isotonicity)
- Ringer solution (vehicle)
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