Generic Voltaren Emulgel (Diclofenac sodium) is a topical cream that administers relief of pain and inflammation in the muscles and body. Generic Voltaren Emulgel contains the active ingredients diclofenac, and is classified as a non-steroidal anti-inflammatory analgesic treatment. Generic Voltaren Emulgel is often used to treat aches, pains and discomfort in the back, neck, shoulder and muscles. Generic Voltaren Emulgel can also be used to treat swelling in the muscles, tendons, joints and ligaments caused by strains, bruises, sprains, localized rheumatic conditions, soft tissue rheumatism, or common sports injuries. Generic Voltaren Emulgel is for external use only. Do not ingest this medication.