Medications
Learning Center
Atrioventricular canal defect
This congenital heart defect involves a hole in the heart. It affects blood flow through the heart valves. Learn the symptoms and how it's treated.
Atrial septal defect (ASD)
This heart problem that is present at birth causes a hole between the heart's upper chambers. It can be treated.
Astigmatism
Imperfect curvature of your eye can cause blurred distance and near vision. Learn about this common and treatable eye condition.
Aspirin during pregnancy: Is it safe?
A Mayo Clinic specialist explains what you need to know about taking aspirin if you're pregnant.
Arteriovenous malformation
In this condition, a tangle of blood vessels affects the flow of blood and oxygen. Treatment can help.
Aortic valve disease
Learn more about diseases that affect the valve between the heart's main pumping chamber and the body's main artery.
Antidepressants: Safe during pregnancy?
Medicines often are important for treating depression while pregnant. Weigh the risks and benefits with your health care team.
Antibiotics: Are you misusing them?
The overuse of antibiotics creates antibiotic-resistant germs. Protect yourself and others by using antibiotics wisely.
Antibiotics and pregnancy: What's safe?
Learn about common types of antibiotics used during pregnancy and their safety.
Antibiotics and alcohol
Alcohol doesn't make antibiotics less effective. But it's still a good idea not to drink alcohol while taking antibiotics.
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