The combination of aceclofenac and paracetamol may cause dizziness. Driving or operating machinery should be avoided. Individuals receiving long term treatment should be regularly monitored for renal function tests, liver function test and blood count. It is used with caution in hepatic porphyria, coagulation disorder, history of peptic ulcer, ulcerative colitis, Crohn's disease cerebrovascular bleeding, pregnancy and lactation. Caution should be exercised in patients with mild to moderate impairment of cardiac, hepatic or renal function and in elderly patients who are more likely to be suffering from these conditions. Caution is also required in patients on diuretic therapy or otherwise at risk of hypovolemia.