From the manufacturer's website:
An alternative to pills, Voltaren targets pain directly at the source to deliver clinically-proven non-steroidal anti-inflammatory medicine for powerful arthritis pain relief with a proven safety profile. Voltaren is a topical NSAID absorbed through the skin and not through the stomach like most oral medicines. Actually treats arthritis pain. Most topicals heat, cool, or irritate the surface of the skin, which only masks the pain. Clinically proven to relieve arthritis pain, reduce stiffness, and improve mobility. Non-greasy and clean scent.
For external use only.
Allergy alert: Diclofenac may cause a severe allergic reaction, specifically people allergic to aspirin. Symptoms may include: hives, asthma (wheezing), skin reddening, blisters, facial swelling, shock, and rash. If an allergic reaction occurs, stop use and seek medical help right away.
*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease.
Read the label and use the enclosed dosing card. Do not use on more than two body areas at the same time.
Using the dosing card, apply the following amounts:
Upper body areas (hand, wrist, elbow): 2.25 inches
Lower body areas (foot, ankle, knee): 4.5 inches
Rub gently into affected area. It is intended to be used 4 times a day everyday for up to 21 days. With 4-times-a-day use, you may start to feel relief within a few days. Stop use and ask your doctor if pain gets worse or lasts more than 21 days.