Niacin NF Tablet should be taken as advised by the doctor. You may take it with or without food but it is better to take it at a fixed time. This medicine should not be stopped abruptly without consulting the doctor. You should take this medicine regularly to get the most benefit, even if you feel fine. It is preventing future harm.
It may cause side effects like dizziness, flushing (sense of warmth in the face, ears, neck and trunk), headache, nausea, and vomiting. You must report to doctor if these effects bother you or your condition does not improve.
Before taking it, you must inform doctor if you are suffering from any kidney or liver disease. Also let your doctor know if you are pregnant or breastfeeding and about all the other medications that you are taking regularly.