Diabetes and Lipid Clinic of Alaska

 

 


Choosing Blood Pressure Medications

Choosing the right high blood pressure medication can be tricky. Find out which of the various drug options is appropriate for you.

Dozens of high blood pressure medications (antihypertensives) are available, each with pros and cons. Depending on how high your blood pressure is, your doctor may prescribe one or more high blood pressure medications to treat your condition. For everyone who has high blood pressure or is at risk of developing high blood pressure, lifestyle changes can help keep your numbers under control. Before beginning blood pressure treatment, it's a good idea to understand the options available to you.
For everyone with high blood pressure and people with prehypertension (120/80 to 139/89).

Whether you're on the road to developing high blood pressure (prehypertension) or you already have high blood pressure (hypertension), you can benefit from lifestyle changes that can lower your blood pressure. People who have prehypertension have a systolic pressure (top number) ranging from 120 to 139 millimeters of mercury (mm Hg) or a diastolic pressure (bottom number) ranging from 80 to 89 mm Hg.

Even if your doctor prescribes medications to control your blood pressure, he or she will likely recommend you make lifestyle changes, as well. Lifestyle changes can reduce or eliminate your need for medications to control your blood pressure. These changes include:

  • Don't smoke.
  • Eat a healthy diet, focusing on fruits, vegetables and low-fat dairy products, and especially, control your salt (sodium) intake.
  • Maintain a healthy weight.
  • Exercise by getting 30 minutes of moderate activity — even if you need to break up your activity into three 10-minute sessions — on most days of the week.
  • Limit the amount of alcohol you drink — one drink a day for women and two a day for men.

For people who have stage 1 high blood pressure (140/90 to 159/99)

If you have stage 1 high blood pressure, you have a systolic pressure ranging from 140 to 159 mm Hg or a diastolic pressure ranging from 90 to 99 mm Hg. If both numbers are in this range, you also have stage 1 high blood pressure.

The first medication your doctor may suggest is a diuretic - also called water pills. Diuretics work by flushing excess water and sodium from the body, thus lowering blood pressure, which may be enough along with lifestyle changes to control your blood pressure.

Follow healthy lifestyle habits along with medications to treat high blood pressure.
Although three types of diuretics are available, the first choice is usually a thiazide diuretic. Thiazide diuretics typically have fewer side effects than do other types of diuretics. They also offer strong protection against conditions that high blood pressure can cause, such as stroke and heart failure.

A diuretic may be the only high blood pressure medication you need. But under some circumstances, your doctor may also recommend adding another medication. Those choices include:

  • Angiotensin-converting enzyme (ACE) inhibitors. These help blood vessels relax by blocking the production of a hormone that causes blood vessels to narrow. Frequently prescribed ACE inhibitors include captopril (Capoten), lisinopril (Prinivil, Zestril) and ramipril (Altace).

  • Angiotensin II receptor blockers. These allow blood vessels to widen by preventing a hormone called angiotensin from affecting vessels. Frequently prescribed angiotensin II receptor blockers include losartan (Cozaar), olmesartan (Benicar) and valsartan (Diovan).

  • Beta blockers. These work by reducing nerve signals to the heart and blood vessels, thus lowering blood pressure. Frequently prescribed beta blockers include metoprolol (Lopressor, Toprol XL), nadolol (Corgard) Carvedilol (Coreg) and Nebivolol (Bystolic)

  • Calcium channel blockers. These prevent calcium from going into heart and blood vessel muscle cells, thus causing the cells to relax, which lowers blood pressure. Frequently prescribed calcium channel blockers include amlodipine (Norvasc), diltiazem (Cardizem, Dilacor XR) and nifedipine (Adalat, Procardia).

For additional medication information:
http://seniorhealth.about.com/cs/prescriptiondrugs/a/htn_drug.htm

For people who have stage 2 high blood pressure (higher than 160/100)


If you have stage 2 high blood pressure, you have a systolic pressure of 160 mm Hg or higher or a diastolic pressure of 100 mm Hg or higher. If both readings are high, you also have stage 2 high blood pressure. In this case, you'll likely need to take at least two high blood pressure medications when you start treatment.

Combining two medications may also allow you to take a smaller dose of each, which can reduce side effects and perhaps be less expensive. The choice of medications in combination depends on your individual circumstances.

If none of the medications discussed above are effective in lowering your blood pressure, your doctor may recommend another medication, such as an alpha blocker, central-acting agent or vasodilator. These medications are potent and may cause more side effects than may other blood pressure medications.

When your blood pressure is very high, it's important to reduce it quickly to prevent or delay complications, such as damage to your arteries, heart failure or kidney damage. A two-drug combination generally works faster than does a single drug to get your blood pressure under control. Sometimes a third, or more, medication may be needed to achieve your blood pressure goal.

For people who have high blood pressure and other health problems

High blood pressure often goes hand in hand with other health problems. If you have a serious health condition in addition to high blood pressure, it's likely you'll need aggressive treatment. Those conditions include:

  • Heart failure
  • Previous heart attack
  • High risk of coronary artery disease
  • Enlarged or thickened left chamber of the heart (left ventricular hypertrophy)
  • Diabetes
  • Chronic kidney disease
  • Previous stroke

High blood pressure itself puts you at higher risk of having one of these conditions. If you already have one or more of these conditions plus high blood pressure, your chance of developing a life-threatening complication increases. A more aggressive treatment approach may reduce your risk of these complications.

Your doctor may recommend specific high blood pressure medications to treat these conditions, as well as additional medications for your high blood pressure. For example, if you have chest pain (angina), your doctor may recommend a beta blocker, which can lower your blood pressure and also prevent your chest pain, reduce your heart rate and decrease your risk of death. If you have diabetes and high blood pressure, taking a diuretic plus an ACE inhibitor can decrease your risk of heart attack and stroke. If you have diabetes, high blood pressure and kidney disease, you may need to add additional medications to the mix, such as an angiotensin II receptor blocker.

Reaching your blood pressure goal

Finding the dose or combination of high blood pressure medications that effectively controls your blood pressure often takes time and patience. The process can be challenging. But the stakes are high. If you don't reduce your blood pressure, you face such complications as heart failure, heart attack, stroke, kidney failure, dementia and vision loss.

Sometimes high blood pressure can be difficult to treat. If your high blood pressure doesn't decrease despite taking at least three different types of high blood pressure drugs, one of which should be a diuretic, you may have resistant hypertension. Resistant hypertension is blood pressure that's resistant to treatment. People who have controlled high blood pressure but are taking four different types of medications at the same time to achieve that control also are considered to have resistant hypertension.

Having resistant hypertension doesn't mean your blood pressure will never get lower. In fact, if you and your doctor can identify what's behind your persistently high blood pressure, there's a good chance you can meet your goal with the help of treatment that's more effective.

Don't be satisfied until you find a treatment strategy that reduces your blood pressure to the goal you and your doctor have set. It's not unusual to try several different medications or doses before finding what works best for you. Home monitoring of your blood pressure can help your doctor decide if your blood pressure treatment is working, or if a different dose or medication is necessary.

But the good news is that in most cases, a combination of lifestyle changes and medication can help you successfully control your blood pressure. Once that's done, your doctor may recommend a gradual reduction in medications while monitoring the effect on your blood pressure; however, don't attempt to do this on your own.

Keeping your blood pressure under control may take some time, but in the long run it may mean a longer life, with fewer health problems. For additional information, please contact the medical staff at Diabetes and Lipid Clinic of Alaska.
 
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