What are the contraindications for Beta blockers?
While beta blockers can be very useful in lowering blood pressure and the treatment of certain heart conditions, they are not always an ideal treatment. Contraindications for beta blockers should be carefully considered, as medicines can worsen some conditions or mask symptoms of complications. Contraindications for beta blockers include diabetes, asthma, partial heart block and slow heart rate.
One of the most common contraindications for beta blockers is the existence of type I or type II diabetes. Diabetics are susceptible to a condition known as hypoglycaemia or extremely low blood sugar, which can be signaled symptoms such as dizziness, chills and increased heart rate. Since beta blockers work by reducing adrenaline in the bloodstream and slowing heart rate, the drug can mask important symptoms of hypoglycaemia. For this reason, beta blockers are rarely prescribed for diabetics, especially for those who rarely experience outward symptoms of hypoglycae.
In search of beta blockers to reduce blood pressure, they may also cause narrowing the airways known as bronchoconstriction. This action can make breathing more difficult, which may not be a problem for healthy patients, but may cause confusion in patients with asthma. Asthma is one of the most important contraindications for beta blockers, because drug use can bring sudden violent asthma attacks that can lead to hospitalization and death. Even patients with mild asthma or those who have experienced asthma as a child but not as adults may be recommended against the use of beta blockers.
does not participate in the effects of beta blockers include some cardiovascular changes that may be of risk to patients with heart condition. Cardiovascular contraindications for Beta blockers often include the presence of a heart block, a state in which the elected signals from the heart chambers do not always broadcast correctly, which inEDE to irregular heart rhythm. Beta blockers can increase irregularity, worsen the heart block and lead to increased potential of heart failure or unstable heart rhythm.
Slower than a normal heart rhythm, known as bradycardia, can also be dangerous in combination with beta blockers. Since the main effect of these drugs is to reduce heart rate, the presence of bradycardia can lead to extremely low heart rate, which is unsustainable. In cases where beta blockers are prescribed regardless of this contraindication, patients may experience more serious side effects of the drug and may be at increased risk of heart failure.