Anti hypertensive

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This will be a great review for medical students that are enrolled in Pharmacology class.

This section will cover Anti hypertensive drugs. There will be more content to follow.

The antihypertensives are a class of drugs that are used to treat hypertension (high blood pressure). Evidence suggests that reduction of the blood pressure by 5 mmHg can decrease the risk of stroke by 34%, of ischaemic heart disease by 21%, and reduce the likelihood of dementia, heart failure, and mortality from cardiovascular disease.There are many classes of antihypertensives, which lower blood pressure by different means; among the most important and most widely used are the thiazide diuretics, the ACE inhibitors, the calcium channel blockers, the beta blockers, and the angiotensin II receptor antagonists or ARBs.
http://en.wikipedia.org/wiki/Antihypertensive_drug

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Presentation Transcript Presentation Transcript

Anti-hypertensives : Anti-hypertensives

Slide 2 : Drugs that are used to treat hypertention (high blood pressure)

Slide 3 : Anti-hypertensives

Slide 4 : True or False? African Americans, Puerto Ricans and Cuban- and Mexican-Americans are more likely to suffer high blood pressure than Anglo-Americans. People with lower educational and income levels tend to have higher levels of blood pressure

Slide 5 : True African Americans, Puerto Ricans and Cuban- and Mexican-Americans are more likely to suffer high blood pressure than Anglo-Americans. People with lower educational and income levels tend to have higher levels of blood pressure

Slide 6 : What is considered HTN?

Slide 7 : What is considered HTN? systolic BP >140, Diastolic >90

Slide 8 : True or False Sustained HTN leads to target organ damage : after about 5 years.

Slide 9 : True Sustained HTN leads to target organ damage : after about 5 years.

Slide 10 : What is considered Normal range for BP?

Slide 11 : What is considered Normal range for BP? Normal : Systolic/Diastolic = < 130/< 85

Identify which Stage : Identify which Stage Match Stage 1, 2, and 3: 140 - 159 90 – 99 160 - 179 100 -109 > 180 > 110

Identify which Stage : Identify which Stage Hypertension - Stage 1 140 - 159 90 – 99 Stage 2 160 - 179 100 -109 Stage 3 > 180 > 110

Slide 14 : Match correctly Regulation of BP Short term : ___________ Long term : ___________ A. Baroreceptors B. RAS (RAAS)

Slide 15 : Match correctly Regulation of BP Short term : Baroreceptors Long term : RAS (RAAS)

Slide 16 : True or False RAS or the renin-angiotensin-aldosterone system (RAAS) is a hormone system that regulates blood pressure and water/fluid balance

Slide 17 : True RAS or the renin-angiotensin-aldosterone system (RAAS) is a hormone system that regulates blood pressure and water/fluid balance

Slide 18 : True or False When blood volume/blood flow is low the kidneys secrete renin. Renin stimulates the production of angiotensin. Angiotensin causes blood vessels to constrict resulting in increased blood pressure.

Slide 19 : True When blood volume/blood flow is low the kidneys secrete renin. Renin stimulates the production of angiotensin. Angiotensin causes blood vessels to constrict resulting in increased blood pressure.

Slide 20 : Summary: Long term : RAS

Anti-hypertensive (BP) drugs: Classes : Anti-hypertensive (BP) drugs: Classes Diuretics : Sympatholytic Drugs : (Discussed all these in previous lect) ►Alpha 2 selective agonists ► Adrenergic blockers : ▪Beta blockers ▪Alpha blockers ▪a & b blockers Angiotensin Converting Enzyme (ACE) Inhibitors Calcium Channel Blockers Vasodilators

Slide 22 : Which drug prevent uptake into the storage vesicle.? (disrupts norepinephrine vesicular storage;) Not cocaine, but same type of action Side Effects: Depression

Slide 23 : Reserpine – Prevent uptake into the storage vesicle. Reserpine disrupts norepinephrine vesicular storage; reserpine has both central and peripheral action; can be used to treat mild to moderate hypertension Side Effects: Sedation Diarrhea Depression Bradycardia Nasal congestion

Slide 24 : Most extensively used hypotensive agent (drug) in management of hypertension in pregnant women?

Slide 25 : Methyl dopa Therapeutic Notes: Most extensively used hypotensive agent in management of hypertension in pregnant women

Slide 26 : Of the following, which is the drug of choice for HTN and BPH Alpha 1 blockers: Prazosin Terazosin Doxazosin Alfuzosin Tamsulosin

Slide 27 : Of the following, which is the drug of choice for HTN and BPH Alpha 1 blockers: Prazosin Terazosin Doxazosin Alfuzosin Tamsulosin

Slide 28 : Note: ACEIs (Ace Inhibitors)------inhibit ACE-----blocking the formation of Angiotensin II

Slide 29 : ACEIs (Ace Inhibitors)------inhibit ACE-----blocking the formation of Angiotensin II

Slide 30 :

Remember: : Remember: Ace is dating April; who has a dry cough, Angioedema, and a lot of potassium (Hyperkalemia)! Do not get her Pregnant

ACEI drugs- Notice they all end in “PRIL” : ACEI drugs- Notice they all end in “PRIL” Imp: Both (ACEIs, ARBs) slow the progression of Nephropathy (nerve damage) in Diabetes by decreasing Glomerular efferent resistance. **Do not give if Pregnant or if they have Bilateral renal artery stenosis. ** Enalapril Lisinopril Fosinopril Ramipril Quinapril Moexipril Benazepril Captopril

Side Effect of ACE Inhibitors: : Side Effect of ACE Inhibitors: Hyperkalemia Altered taste Rash Dry cough, fever ………. Most common Angioneurotic edema (0.2% cases) Teratogenic: Fetal hypotension Renal failure (in fetus) Skull and Renal malformations Angioedema- rapid swelling of the dermis, subcutaneous tissue, mucosa and submucosal tissues Gynaecomastia -Excessive development of the breasts in males

Angiotensin II Antagonists (ARB)-Drugs that prevent Angiotensin II action : Angiotensin II Antagonists (ARB)-Drugs that prevent Angiotensin II action Primary Mechanism of Action: relax smooth muscle and thereby promote vasodilation, increase salt and water excretion, decrease plasma volume Losartan Valsartan Candesartan Olmesartan Irbesartan Telmisartan Eprosartan Note that they end in “-ARTAN” Side Effect: Hyperkalemia

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