Vitamin B3 and Alcohol/Food Interactions
There are 2 alcohol/food/lifestyle interactions with Vitamin B3 (niacin).
Niacin Alcohol (Ethanol)
Moderate Drug Interaction
Ask your doctor before using niacin together with ethanol (alcohol). You should avoid drinking alcohol, it can increase some of the side effects of niacin. This can cause nausea, dizziness, itching, vomiting, upset stomach, and flushing (warmth, redness, or tingly feeling under your skin). Furthermore, consumption of large amounts of alcohol is associated with elevated cholesterol and triglycerides. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.
Niacin Nicotine
Minor Drug Interaction
Information for this minor interaction is available on the professional version.
Switch to professional interaction data
Vitamin B3 drug interactions
There are 107 drug interactions with Vitamin B3 (niacin).
Vitamin B3 disease interactions
There are 5 disease interactions with Vitamin B3 (niacin) which include:
Report options
More about Vitamin B3 (niacin)
Drug Interaction Classification
| Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit. | |
| Moderately clinically significant. Usually avoid combinations; use it only under special circumstances. | |
| Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan. | |
| No interaction information available. |
See also:
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.