niacin (nicotinic acid) (cont.)
What happens if I miss a dose?
Take the missed dose as soon as you remember. Be sure to take the missed dose with food if you normally take your niacin dose with a meal or snack.
Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose.
What happens if I overdose?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.
Overdose symptoms may include nausea, dizziness, itching, vomiting, upset stomach, and flushing (warmth, redness, or tingly feeling).
What should I avoid while taking niacin ?
Avoid drinking hot beverages shortly after taking niacin. Hot drinks can worsen niacin's flushing effect (warmth, itching, redness, or tingly feeling under your skin).
Avoid drinking alcohol while taking niacin. Alcohol may increase your risk of liver damage, and can also worsen the flushing effects of niacin.
Avoid taking colestipol (Colestid) or cholestyramine (Locholest, Prevalite, Questran) at the same time you take niacin. If you take either of these other medications, take them at least 4 to 6 hours before or after you take niacin.
Avoid getting up too fast from a sitting or lying position, or you may feel dizzy. Get up slowly and steady yourself to prevent a fall.
What other drugs will affect niacin?
Tell your doctor about all other cholesterol-lowering drugs you are taking with niacin, especially atorvastatin (Lipitor, Caduet), fluvastatin (Lescol), lovastatin (Mevacor, Altoprev, Advicor), pravastatin (Pravachol), or simvastatin (Zocor, Simcor, Vytorin, Juvisync).
Ask a doctor or pharmacist if it is safe for you to use niacin if you are also using any of the following drugs:
- a blood thinner such as warfarin (Coumadin, Jantoven);
- multivitamins or mineral supplements that contain niacin;
- blood pressure or heart medications such as amlodipine (Norvasc, Caduet, Exforge, Lotrel, Tekamlo, Tribenzor, Twynsta, Amturnide), diltiazem (Cardizem, Cartia, Dilacor, Diltia, Diltzac, Taztia, Tiazac), felodipine (Plendil), nicardipine (Cardene), nifedipine (Procardia, Adalat), nimodipine (Nimotop), nisoldipine (Sular), or verapamil (Calan, Covera, Isoptin, Verelan); or
- heart medications such as doxazosin (Cardura), isosorbide (Dilatrate, Imdur, Isordil, Monoket, Sorbitrate), nitroglycerin (Nitro-Bid, Nitro-Dur, Nitrostat), prazosin (Minipress), or terazosin (Hytrin).
This list is not complete and other drugs may interact with niacin. Tell your doctor about all medications you use. This includes prescription, over-the-counter, vitamin, and herbal products. Do not start a new medication without telling your doctor.
Where can I get more information?
Your pharmacist can provide more information about niacin.
Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.
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