Medical Week In Review
The following is a roundup of this week's medical news, reported by CBS News Correspondent Rick Jackson.
This week, researchers may have shed some light on why many African-American smokers have such a hard time kicking the habit.
According to two studies released in the Journal of the American Medical Association, blacks appear to absorb more nicotine than smokers of other races.
Scientists say this is probably why African-Americans run a higher risk of lung cancer, and often find it tough to quit smoking.
Two familiar over-the-counter painkillers get a major makeover-- stronger warning labels.
Tylenol and Motrin will begin carrying labels cautioning people not to mix alcohol with the medications.
Heavy drinkers who take these drugs could increase their risk of liver damage or stomach bleeding.
The changes are in response to a Food & Drug Administration (FDA) proposal that all household pain relievers carry alcohol warning labels.
Some doubts are being raised about the breast cancer drug, Tamoxifen.
British scientists say preliminary studies show that Tamoxifen failed to prevent the disease in high-risk women. This differs from an American study that found Tamoxifen could reduce the number of breast cancers cases by 45-percent.
Dallas researchers may have put to bed a long-standing debate over whether a women in labor should walk around or lay down before giving birth.
The study involving more than a thousand pregnant women found the decision to move about or stay in bed had no noticeable effect on the delivery.