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1. Antihypertensives (Lower Blood Pressure)
A. Beta Blockers (-lol)
• Examples: Common beta blockers include Metoprolol, Atenolol, and Propranolol,
which are frequently prescribed for hypertension and heart conditions.
• Mechanism of Action: These medications work by blocking beta-adrenergic
receptors, leading to a decrease in heart rate and blood pressure, thus reducing
the workload on the heart.
• Key Monitoring: It is crucial to hold the medication if the heart rate is less than 60
beats per minute (bpm) to prevent bradycardia.
• Contraindications: Patients with asthma or COPD should avoid beta blockers as
they can induce bronchospasm, exacerbating respiratory conditions.
• Diabetic Considerations: Beta blockers may mask hypoglycemic symptoms in
diabetic patients, necessitating careful monitoring of blood glucose levels.
B. ACE Inhibitors (-pril)
• Examples: Common ACE inhibitors include Lisinopril, Enalapril, and Captopril,
which are effective in managing hypertension and heart failure.
• Mechanism of Action: These drugs inhibit the angiotensin-converting enzyme,
leading to vasodilation and a reduction in blood pressure.
• Common Side Effects: A persistent dry cough is a frequent side effect, which may
lead to discontinuation of therapy.
• Electrolyte Monitoring: Patients should be monitored for hyperkalemia, as ACE
inhibitors can increase potassium levels in the blood.
• Severe Reactions: There is a risk of angioedema, which is swelling of the face and
Try it out
tongue, requiring immediate medical attention.
C. ARBs (-sartan)
, • Examples: Losartan and Valsartan are commonly used ARBs that provide similar
benefits to ACE inhibitors.
• Mechanism of Action: ARBs block the action of angiotensin II, leading to
vasodilation and decreased blood pressure without the common cough
associated with ACE inhibitors.
• Side Effects: Like ACE inhibitors, ARBs can also cause hyperkalemia, necessitating
regular monitoring of potassium levels.
• Monitoring: Blood pressure and kidney function should be regularly assessed to
ensure safety and efficacy of treatment.
D. Calcium Channel Blockers (-dipine)
• Examples: Amlodipine, Nifedipine, Verapamil, and Diltiazem are key calcium
channel blockers used in hypertension management.
• Mechanism of Action: These medications relax blood vessels by inhibiting calcium
entry into cells, leading to lower blood pressure.
• Dietary Considerations: Patients should avoid grapefruit juice, as it can increase
the concentration of the medication in the bloodstream, leading to potential
toxicity.
• Common Side Effects: Swelling (edema) is a common side effect, and monitoring
blood pressure and heart rate is essential as these drugs can cause bradycardia.
E. Diuretics
• Loop Diuretics: Furosemide (Lasix) is a loop diuretic that promotes potassium
excretion; monitoring for hypokalemia is essential.
• Thiazide Diuretics: Hydrochlorothiazide (HCTZ) also causes potassium loss and
should be monitored for electrolyte imbalances.
• Potassium-Sparing Diuretics: Spironolactone spares potassium, but patients must
be monitored for hyperkalemia, especially if combined with other medications.
2. Heart Failure Medications
A. Digoxin (Cardiac Glycoside)
• Mechanism of Action: Digoxin increases the force of heart contractions (positive
inotropic effect) and slows the heart rate (negative chronotropic effect).
• Monitoring: Hold the medication if the heart rate is less than 60 bpm to prevent
adverse effects.
• Toxicity Signs: Symptoms of toxicity include blurred vision, seeing halos around
lights, and gastrointestinal disturbances such as nausea.
1. Antihypertensives (Lower Blood Pressure)
A. Beta Blockers (-lol)
• Examples: Common beta blockers include Metoprolol, Atenolol, and Propranolol,
which are frequently prescribed for hypertension and heart conditions.
• Mechanism of Action: These medications work by blocking beta-adrenergic
receptors, leading to a decrease in heart rate and blood pressure, thus reducing
the workload on the heart.
• Key Monitoring: It is crucial to hold the medication if the heart rate is less than 60
beats per minute (bpm) to prevent bradycardia.
• Contraindications: Patients with asthma or COPD should avoid beta blockers as
they can induce bronchospasm, exacerbating respiratory conditions.
• Diabetic Considerations: Beta blockers may mask hypoglycemic symptoms in
diabetic patients, necessitating careful monitoring of blood glucose levels.
B. ACE Inhibitors (-pril)
• Examples: Common ACE inhibitors include Lisinopril, Enalapril, and Captopril,
which are effective in managing hypertension and heart failure.
• Mechanism of Action: These drugs inhibit the angiotensin-converting enzyme,
leading to vasodilation and a reduction in blood pressure.
• Common Side Effects: A persistent dry cough is a frequent side effect, which may
lead to discontinuation of therapy.
• Electrolyte Monitoring: Patients should be monitored for hyperkalemia, as ACE
inhibitors can increase potassium levels in the blood.
• Severe Reactions: There is a risk of angioedema, which is swelling of the face and
Try it out
tongue, requiring immediate medical attention.
C. ARBs (-sartan)
, • Examples: Losartan and Valsartan are commonly used ARBs that provide similar
benefits to ACE inhibitors.
• Mechanism of Action: ARBs block the action of angiotensin II, leading to
vasodilation and decreased blood pressure without the common cough
associated with ACE inhibitors.
• Side Effects: Like ACE inhibitors, ARBs can also cause hyperkalemia, necessitating
regular monitoring of potassium levels.
• Monitoring: Blood pressure and kidney function should be regularly assessed to
ensure safety and efficacy of treatment.
D. Calcium Channel Blockers (-dipine)
• Examples: Amlodipine, Nifedipine, Verapamil, and Diltiazem are key calcium
channel blockers used in hypertension management.
• Mechanism of Action: These medications relax blood vessels by inhibiting calcium
entry into cells, leading to lower blood pressure.
• Dietary Considerations: Patients should avoid grapefruit juice, as it can increase
the concentration of the medication in the bloodstream, leading to potential
toxicity.
• Common Side Effects: Swelling (edema) is a common side effect, and monitoring
blood pressure and heart rate is essential as these drugs can cause bradycardia.
E. Diuretics
• Loop Diuretics: Furosemide (Lasix) is a loop diuretic that promotes potassium
excretion; monitoring for hypokalemia is essential.
• Thiazide Diuretics: Hydrochlorothiazide (HCTZ) also causes potassium loss and
should be monitored for electrolyte imbalances.
• Potassium-Sparing Diuretics: Spironolactone spares potassium, but patients must
be monitored for hyperkalemia, especially if combined with other medications.
2. Heart Failure Medications
A. Digoxin (Cardiac Glycoside)
• Mechanism of Action: Digoxin increases the force of heart contractions (positive
inotropic effect) and slows the heart rate (negative chronotropic effect).
• Monitoring: Hold the medication if the heart rate is less than 60 bpm to prevent
adverse effects.
• Toxicity Signs: Symptoms of toxicity include blurred vision, seeing halos around
lights, and gastrointestinal disturbances such as nausea.
