How do they work?
These drugs increase the diameter of blood vessels and thus decrease blood pressure. Blood then flows more easily. Their action also facilitates the work of the heart muscle, which circulates the blood.
Cons-indications or precautions?
The administration of some vasodilators may be the cause of hirsutism. This results in hair growth in areas normally hairless women. Making some long-term treatment has also been associated with lupus.