Among those who were not taking oral beta blockers
an estimated 0.
Sixteen hypertensive patients (aged 45-64 years) being treated with a beta blocker
(atenolol or metoprolol) were randomly assigned to receive, in double-blind fashion, 2.
However, men who had received beta blockers
as their only blood pressure medication had fewer abnormalities in their brains compared to those who had not been treated for their hypertension, or who had received other blood pressure medications.
Some 15 percent of men had taken beta blockers
alone and 18 percent had received beta blockers
along with another high blood pressure medication while the rest had been given other blood pressure drugs.
The American Heart Association previously discouraged the long-term use of beta blockers
in those with heart risk factors or as a post-heart attack treatment beyond three years.
constitute one of the most important classes of medications because of their ability to block the action of noradrenalin or adrenalin, also referred to as norepinephrine and epinephrine.
Previous studies that supported the use of beta blockers
were not incorrect, but the benefits of beta blockers
for any period past three years after a heart attack is now in question.
such as propranolol and atenolol have been prescribed for
Pharmacist Dr Duncan Petty from the University of Leeds led the research and said: "The study assessed GPs' knowledge of beta blockers
through a questionnaire, and found that although GPs were aware of the scale of the benefits, they tended to over-estimate adverse effects compared to placebo.
The end of beta blockers
for uncomplicated hypertension?
Under new guidelines, the NHS drugs watchdog has recommended that beta blockers
should no longer be routinely used for the condition, except in special situations.
In a study of professional orchestral musicians in Canada, beta blockers
were considered to be the most effective coping strategy in dealing with performance anxiety.