Diclofenac Sodium Lotion 1% W/W is contraindicated in the following patients: Patients having a history of hypersensitivity to the ingredient of this drug; Patients with aspirin-induced asthma (asthma attack induced by a nonsteroidal analgesic anti-inflammatory drug etc.) or patients having a history of aspirin asthma [serious asthmatic attack may be induced]; The third trimester of pregnancy [risk of premature closure of the ductus arteriosus and prolonged parturition].