Lidocaine (Locaine) 20mg Solution for Injection is a local anesthetic used to numb specific areas of the body during medical procedures. Each 50ml vial contains 20mg of Lidocaine, which works by blocking nerve signals in the treated area, providing temporary pain relief. It is commonly used for minor surgeries, dental procedures, and in some cases, as part of an emergency treatment for arrhythmias. The solution is administered via injection, and its dosage and application are carefully controlled by healthcare professionals to ensure safety and effectiveness.