A drug increasingly used to prevent cluster headaches can cause heart problems, according to a study published in the August 14, 2007, issue of Neurology®, the medical journal of the American Academy of Neurology.

Health Canada is warning consumers not to use Zencore Tabs, a product advertised as a dietary supplement for sexual enhancement, because it contains an undeclared pharmaceutical ingredient similar to the approved drug tadalafil.

Researchers at the University of Alberta have shown that Viagra, the popular drug prescribed for erectile dysfunction, can improve heart function and potentially save the lives of people with specific heart problems.

Varying advice means patients at high-risk of having a heart attack are unclear about when symptoms are potentially life threatening and when they should call an ambulance, argue a group of heart specialists in this week’s BMJ.

A new study suggests patients hospitalized with pneumonia may be at serious risk of new or worsening heart problems. The study is published in the July 15 issue of Clinical Infectious Diseases, currently available online.

Breathing air containing coarse particulate matter such as road or construction dust may cause heart problems for asthma sufferers and other vulnerable populations, according to a new study led by the University of North Carolina at Chapel Hill School of Public Health.

Researchers at the University of Pennsylvania's School of Medicine have discovered that implantable cardioverter-defibrillators (ICDs) - electric monitoring devices that deliver a lifesaving shock in the event of a cardiac arrest - help patients with heart problems live longer more active lives.

Using a nuclear medicine technique and molecular imaging to "see" programmed cell loss-the body's normal way of getting rid of unneeded or abnormal cells-may help in early identification of those individuals who are at risk of developing heart failure, say researchers in the April Journal of Nuclear Medicine.

Heart problems in children are quite different from those in adults, and four studies presented today at the American College of Cardiology's 56th Annual Scientific Session look at how pediatric cardiologists take different approaches to better understand and manage cardiovascular disease in this population, including insights into fundamental cardiac mechanisms and testing of new procedures.