Diclofenac, sold under the trade names Voltaren among others, is a nonsteroidal Diclofenac was patented in 1965 by Ciba-Geigy and came into medical use in the United .. Voltaren and Voltarol contain the sodium salt of diclofenac. 100 or 150 mg), suppositories (50 and 100 mg), and injectable forms...