Diclofenac Sodium and Lidocaine Hydrochloride Action

Sodium diclofenac and lidocaine hydrochloride is a compound formulation, whose main effects include the following:

1. Analgesic effect: Sodium diclofenac is a nonsteroidal anti-inflammatory drug (NSAID) that primarily works by inhibiting cyclooxygenase to reduce the synthesis of prostaglandins in the body, thereby achieving analgesic, anti-inflammatory, and antipyretic effects.

2. Anti-inflammatory effect: Sodium diclofenac can reduce local symptoms such as redness, swelling, and fever, and is widely used in the treatment of various painful and inflammatory conditions including arthritis, musculoskeletal disorders, dental pain, headache, and more.

3. Local anesthetic effect: Lidocaine, an amide-type local anesthetic, selectively binds to receptors on the nerve membrane Na+ channels, producing an anesthetic effect. It is commonly used for topical anesthesia on the skin or mucous membranes, or during surgical procedures, to relieve pain.

4. Muscle relaxant effect: Lidocaine inhibits the release of acetylcholine at the presynaptic membrane, affecting the transmission of excitation signals in motor neurons, resulting in muscle relaxation.

5. Uric acid reduction: Sodium diclofenac can inhibit the activity of cyclooxygenase, reduce the synthesis of prostaglandin E2, thereby lowering uric acid levels, which helps in the treatment of hyperuricemia and gout.

This medication should be used under the guidance of a physician.