Indication: Voltaren gel is a non-steroidal anti-inflammatory drug indicated for relief of from the pain of osteoarthritis of joints amenable to topical treatment, such as the knees and the hands.

Insight:

Dosing: Apply Voltaren (2 to 4 g) to the affected area 4 times daily. Total dose should not exceed 32 g per day.
Dosage form: Voltaren gel (diclofenac sodium topical gel), 1%.
Adverse events (AEs): Most common AEs (incidence >2% of patients treated with Voltaren and greater than placebo) are application site reactions, including dermatitis.
Mechanism of action: Diclofenac has analgesic, anti-inflammatory, and antipyretic properties.
Manufacturer: Endo Pharmaceuticals

Sources:

label (fda.gov)
voltaren gel 1% - Google Search