The majority of pregnant women do not complain of morning sickness until the 6th week of pregnancy, 2 weeks after a missed period. But for some women, that nagging feeling can start as early as one week after conception, a full week before a missed period. Changes in hormones account for the queasiness that occurs.
DRUG CLASS AND MECHANISM: Niacin (nicotinic acid, vitamin B3) is a part of the normal diet that is essential to various chemical reactions in the body.
Supplements of niacin such as nicotinic acid or nicotinamide are approved by the FDA for treating niacin deficiency. Under the supervision of a doctor, high doses of over-the-counter or prescription niacin or nicotinic acid can be used to treat high cholesterol, including high triglycerides.