Known hypersensitivity to diclofenac diethylamine or to any of the excipients of Voltaren Emulgel.
Patients in whom attacks of asthma, urticaria or acute rhinitis are precipitated by acetylsalicylic acid or other NSAIDs.
Use in pregnancy: There are no insufficient data on the use of diclofenac in pregnant women. Voltaren Emulgel should therefore not be used during pregnancy. Diclofenac is contraindicated during the 3rd trimester, owing to the possibility of uterine inertia and/or premature closure of the ductus arteriosus (see Pharmacology: Pharmacodynamics: Toxicology: Nonclinical Safety Data under Actions).