Diclolab 25 mg Injection 3 ml (Diclofenac Sodium Injection I.P.) is a nonsteroidal anti-inflammatory drug (NSAID) used for short-term relief of pain, inflammation, and swelling in conditions like arthritis, gout, kidney/gallstones, post-surgery, and injuries, by blocking pain-causing chemicals; it's administered by a healthcare professional and common side effects include stomach pain, nausea, or heartburn.