<s>[INST] my age is 66. last month i got viral fever. taking medicines it controlled. but for the past one month i am feel very very week. last weak i visit the dr and ask, i can't do any work.our dr., suggests that is weakness only, take a cap. FULL 24. daily. what the reason for the great weekness. [/INST] Viral fever can result in loss of electrolytes which in turn causing generalized weakness. You should use ORS for 3 days , if you are not diabetic. And take Nuberol Forte 1 tablet 3 times daily for 3 days. This will get better. Have a nice day. </s>