Niconic is a medicine used in the treatment of conditions caused due to low levels of vitamin B3 in the body. It helps in maintenance of normal cholesterol level. It also helps in the treatment of symptoms like loss of appetite, weakness, diarrhea, skin inflammation, and mental changes. Niconic can be taken with or without food. It should be taken regularly and at the same time each day to get the most benefit from it. This medicine may be only part of a complete program of treatment that also includes making changes to your diet and taking calcium and vitamin supplements. Learn about the foods you should eat to make sure you get enough vitamins in your diet. This medicine may cause few side effects such as itching, flushing (sense of warmth in the face, ears, neck and trunk), redness of skin, and tingling in some patients. If any of these side effects bothers you, consult with your doctor. Before taking this medicine, tell your doctor if you have any heart, kidney, or liver disease. Some other medicines can decrease the absorption of vitamins, so let your doctor know all other medicines you are taking to make sure you are safe. It is important to ask the advice of you doctor before taking any other vitamin supplements.