Ascorbic acid tablets are to be taken as prescribed by your doctor as an underdose will not give the required effect and overdose might cause side effects. Usually, 1 tablet can be taken once or twice daily, orally. Chewable tablets should be completely chewed and then swallowed. Non-chewable can be taken with water. Further, you can consult our doctors for expert medical advice regarding the use of ascorbic acid.