I am 56+ years,and Body weight.54 Kg. My BP 135/85, Blood sugar.98 fasting, Lipid profile - Normal, Uric acid = 6.7. I take Esam 5mg, Lodoz 2.5mg, Aztor 10mg,and Start now Febuget 40mg, I have cervical spondilitis and pain on the both knees. what is the side effect.of taken febuget 40 ?