There are several classes of high blood pressure medications, which each come with a wide array of different medications to control your hypertension. These medications are typically available as prescription medications, though you can buy many of these over the counter at any pharmacy. However, you should be sure to tell your pharmacist of all medications and drugs you take, especially if you are taking any other medication, as mixing different medications may cause adverse reactions. If you are pregnant or breast-feeding, it is a good idea to check with your doctor before starting any type of medication.
The most commonly prescribed high blood pressure medications are Angiotensin Receptor Blockers (ARBs) such as carvedilol, atenolol and flopidil. They work by keeping your arteries clogged, thereby lowering your high blood pressure. Some of the common side effects of taking these medications include fatigue, dizziness, constipation, nausea and vomiting. On the positive side, these medications do not have any negative side effects.
Calcium Channel Blockers is another one of the high blood pressure medications used to lower your BP. This class of drugs works by blocking the chloride channels in your blood vessels. These blood vessels are used by your body to absorb calcium from food and release it into your tissues as waste products. The calcium, however, is then absorbed into your muscles where it helps to excrete waste products. The only side effects of calcium channel blockers are headaches and stomach cramps.
Angiotensin Receptor Blockers are another group of high blood pressure medications which help to treat high blood pressure. They block the receptors on the surface of your arteries. These drugs are available as inhaled drugs and can interact with other medications such as antibiotics and estrogen therapy. You should talk to your doctor before taking any of these drugs.
One of the high blood pressure medications used to prevent dizziness or to make you feel light headed is called centrally agonist. Central agonists work by constricting the arteries in the legs. This constriction makes it harder for fluid to move back up into your heart, which keeps your heart chambers from becoming swollen with fluid. As a result of this narrowing of the arteries, the nerve impulses that travel between your brain and your legs cannot travel the way they would normally. While this results in less oxygen getting to your brain, it does not result in you feeling light headed.
Another type of high blood pressure medications available for use to reduce dizziness is called anticholinergic drugs. As the name suggests, these medications act on the nerve impulses in the legs. Anticholinergic drugs work by keeping your nerve impulses from being able to travel up the blood vessels to your brain. The reason these medications are called anticholinergic is because they act as a strong blocker of histamine, a chemical that allows chemicals to enter your blood. If you take too much of these medications, you can experience dizziness.
Other medications used in combination therapy include calcium channel blockers and vasodilators. Ca channels and VASDs both have the same mechanism of opening the blood vessels. Because the blood vessels do not open when they are open, the medications reduce the force with which the blood enters your body. These types of medications are also known as calcium channel blockers.
Vasodilators, on the other hand, work by contracting the muscles in your legs. The contracting of the muscles reduces the force with which the blood moves through the veins. The medications may cause dizziness in some people. This is usually temporary, however. Over time, the effects of these medications may wear off and they will cease to provide any relief for your hypertension.