Antihypertensives
Amiloride | Enalapril | Nifedipine |
Amlodipine | Felodipine | Perindopril |
Atenolol | Furosemide | Prazosin |
Bisoprolol | Irbesartan | Propranolol |
Captopril | Labetolol | Ramipril |
Carvedilol | Losartan | Spironolactone |
Chlorothiazide | Methyldopa | Telmisartan |
Clonidine | Metolazone | Valsartan |
Diltiazem | Metoprolol | Verapamil |
Minoxidil
|
ANTIHYPERTENSIVES
Types | ACTIONS | SIDE EFFECTS | SPECIAL PRECAUTION |
---|---|---|---|
Beta – Blockers : Atenolol Bisoprolol Carvedilol Labetolol Metoprolol Propranolol |
|
Common :
Less common :
If any of these occur, contact your doctor immediately. |
Tell your doctor / pharmacist if you
These conditions can be aggravated by beta blockers. |
Angiotensin Converting Enzyme Inhibitors : Captopril Enalapril Perindopril Ramipril |
|
Common :
The nagging cough associated with ACE inhibitors can be aggravating, is usually “dry,” and is not associated with shortness of breath. Less common :
If any of these occur, contact your doctor immediately. |
Tell your doctor / pharmacist if you have
Your doctor will order blood tests to check potassium and kidney function after you have started on one of these medications. |
Calcium Channel Blockers : Amlodipine |
|
Common :
Less common :
If any of these occur, contact your doctor immediately. |
Tell your doctor / pharmacist if you
Do not stop taking these medications suddenly or without your doctor’s guidance. Suddenly stopping this medication can cause unpleasant and even harmful effects on your heart and blood vessels. |
Angiotensin Ii Receptor Antagonists : Losartan Telmisartan Valsartan |
Angiotensin II receptor antagonists are medications that lower blood pressure by blocking a hormone in the body that can constrict blood vessels. |
Common :
Less common :
If any of these occur , contact your doctor immediately. |
Tell your doctor / pharmacist if you
These drugs can also cause your kidney function to deteriorate or your potassium level to elevate. Your doctor may ask you to get a blood test occasionally to check on this. |
Diuretics : Thiazide Diuretics Loop Diuretics Potassium Sparing Diuretics |
Diuretics are used to treat :
Diuretics work by causing the kidneys to excrete unneeded water and salt into the urine. Therefore, diuretics are often referred to as “water pills” . |
Common :
Less common :
If any of these occur, contact your doctor immediately. |
Tell your doctor / pharmacist if you
Diuretics can cause you to lose potassium. When your potassium level is low, you may feel more tired. Low potassium can also cause muscle cramping or abnormal heart rhythms. It is important to have your blood level of potassium checked on a regular basis to make sure that it is within normal limits. Your doctor may ask you to take a potassium supplement. Although most diuretics can cause your potassium level to be too low, potassium sparing diuretics listed above can cause your potassium level to be too high. It is usually best to take diuretics in the morning to avoid disturbing your sleep with trips to the toilet at night. |
Centrally Acting Antihypertensives: Clonidine Methyldopa |
They work by preventing your brain from sending signals to your nervous system to speed up your heart rate and narrow your blood vessels. As a result, your heart doesn’t pump as hard and your blood flows more easily through your blood vessels. |
Common :
Less common :
If any of these occur, contact your doctor immediately. |
Abruptly stopping use of some central-acting agents can cause a sudden, dangerous increase in blood pressure. Do not stop taking these medications without talking to your doctor. |
Alpha-Adrenergic Blocking Agents (Alpha Blocker) Prazosin |
Alpha blockers relax certain muscles and help small blood vessels remain open. They work by keeping the hormone norepinephrine (noradrenaline) from stimulating the muscles in the walls of smaller arteries and veins. This stimulation makes the vessel walls constrict. Blocking that effect causes the vessels to remain open and relaxed. This improves blood flow and lowers blood pressure. | Common :
Less common :
|
Tell your doctor / pharmacist if you
Alpha blockers can cause heart failure with long-term use. As a result, alpha blockers are less likely to be used alone to treat high blood pressure – a condition that often requires long-term medication use. Talk to your doctor about your situation. |
Direct Vasodilator Minoxidil | Direct vasodilators are medications that open (dilate) blood vessels. They work directly on the muscles in the walls of your arteries, preventing the muscles from tightening and the walls from narrowing. As a result, blood flows more easily, your heart doesn’t have to pump as hard and blood pressure is reduced. |
Common :
Less common :
If any of these occur, contact your doctor immediately. |
Direct vasodilators are potent medications and are generally used only as a last resort, when other medications haven’t adequately controlled your blood pressure. In large doses, some direct vasodilators can increase your risk of developing lupus, a connective tissue disease. |
Last Reviewed | : | 10 July 2008 |
Writer | : | Dr. Nour Hanah Othman |
: | Hadijah bt. Mohd Taib | |
: | Rosidah bt. Din | |
: | Nor Eizlin bt. Mohd Helmi |