Unexpected toxicities from prescription drugs that emerge years after regulatory approval may be due to poor medication adherence in clinical trials, according to a new study.
Merck has started a clinical trial that it hopes will eventually enroll 1,700 patients to evaluate an experimental drug for Alzheimer's disease, the company said.
British researchers have concluded that a Swiss echinacea extract is both safe and effective in helping to prevent symptoms of the common cold, according to a study published in American Botanical Council's peer-reviewed journal HerbalGram.