Pharm block 1d

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Pharm block 1d
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2010-10-27 16:48:18
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Pharm block 1d
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  1. What is Clonidine?
    What does it do?
    Should it be taken orally?
    An Alpha 2 agonist

    Activation of Alpha 2 receptors in the brain, cause inhibition of sympathetic system.

    • Supression of Release of NE by Presynaptic Alpha 2 receptors
    • Yes-- has excellent Oral Bioavailability
  2. What are some adverse effects of Clonidine?

    What do you use it for?
    Sedation, Bradycardia, sexual dysfunction and rebound hypertension.

    • 1.Adjuvant in anesthesia
    • 2.Glaucoma
    • 3. Hypertension (unpolular for this)
  3. What is Alpha Methyl Dopa?
    What is its mechanism?
    What is it used for?
    It is a Alpha 2 agonist

    Gets converted to alpha-methylnorepinephrine. Activation of these at the brainstem--> inhibit SNS output and Lower BP

    Drug of choice in Hypertension with Pregnancy.
  4. List the Beta 2 agonists: (FRATS)
    Which are short and which are long acting?
    • Terbutaline
    • Ritodrine---> used for uterine relaxant
    • Albuterol--- Short acting--> Bronchial Asthma
    • Formoterol--- Long acting--> Bronchial Asthma
    • Salmeterol--- Long acting--> Bronchial Asthma
  5. What are the clinical applications of Cocaine?
    Cause Vasoconstiction and local anesthesia
  6. What are the clinical applications of Catecholamines and Epinephrine
    Anaphylaxis, gluacoma, asthma, and vasoconstriction
  7. What are the clinical applications of Norepinephrine?
    Cause vasoconstriction in hypotension
  8. What are the clinical applications of Isoproterenol
    Asthma, atrioventricular block
  9. What are the clinical applications of Dopamine?
    Shock, and heart failure
  10. What are the clinical applications of Dobutamine?
    Shock and heart failure
  11. What are the clinical applications of Ephedrine
    Asthma, urinary incontenence, and cause vasoconstriction in hypotension
  12. What are the general effects of alpha blockade?
    • -Hypotension (no vasoconstriction)
    • -Reflex tachycardia (due to low BP)
    • -Failure of Ejaculation (no SNS)
    • -Postural Hypotension (low BP when standing up)
  13. What are the Irreversible, alpha blockers?
    What do you use this for?
    Phenoxybenzamine

    Pheochromocytoma
  14. What is Pheochromocytoma?

    What are the Main symptoms?
    A pheochromocytoma or phaeochromocytoma (PCC) is a neuroendocrine tumor of the medulla of the adrenal glands (originating in the chromaffin cells), or extra-adrenal chromaffin tissue that failed to involute after birth [1] and secretes excessive amounts of catecholamines, usually adrenaline (epinephrine) if in the adrenal gland and not extra-adrenal, and noradrenaline (norepinephrine)

    Pallor, Pressure, Pain, Palpation
  15. What are the Reversible, Nonselective Alpha blockers?
    Phentolamine

    Tolazoline
  16. What are the Reversible, selective Alpha blockers?
    Prazosin

    Terazosin

    Doxazosin

    Tamsulosins
  17. What are the Alpha 2 selective Alpha blockers?
    Yohimbine
  18. What is Prazosin?
    When is it used?

    What are some side effects?
    Slective Alpha 1 blocker

    • Used in Hypertension and Benign prostate Hypertrophy
    • ______________________
    • Postural hypotension
    • Sexual dysfunction (cannot ejaculate)
  19. What are some uses of Alpha Blockers?

    What are some adverse effects?
    • Pheochromocytoma
    • Hypertension
    • CCRF
    • Benign hypertrophy of the Prostate
    • Migraine
    • ____________________
    • Postural Hypotension
    • Impotence
  20. When do you use BETA BLOCKERS?
    • -Ischemic heart disease (just not Prinzmetals angina)
    • -Therapy for Stable and unstable angina
    • -Preferered therapies of Hypertension
    • -Major anti-arrhythmic drugs
  21. What are the non-selective, No intrinsic activity Beta Blockers?
    • Propranolol
    • Timolol
    • Nadolol
  22. What are the Non-Selective, Intrinsic activity Beta Blockers?
    Pindolol
  23. What are the Non-selective, Alpha blocking action, Beta blockers?
    • Labetolol
    • Carvedilol
  24. What are the Selective Beta-1 blockers?
    • Betaxolol
    • Esmolol
    • Atenolol
    • Metoprolol
  25. What is Acebutolol?
    It is a Beta-1 selective blocker WITH intrisic Sympathetic activity (ISA)
  26. What are Propranolol's Effects in the:
    Heart
    AV conduction
    Respiritory tract
    Eyes
    CNS
    Skeletal muscle
    • Heart--- Negative Inotropic,chronotropic, dromotropic action
    • AV conduction--- decreased
    • Respiritory tract--- bronchial constriction
    • Eyes---decreases AqHumor production
    • CNS--- Sedation, Lethargy, depression, Sleep probs
    • Skeletal muscle--- Antagonizes the epinephrine induced tumors.
  27. What is Inotropic,chronotropic, dromotropic action
    • Inotropic-- contraction of the heart
    • chronotropic-- Heart rate
    • dromotropic -- effects the Conduction to the AV node
  28. What are some precautions of Beta Blockers? Think of the ABCD's and H
    • Be careful when the patient has:
    • AV block
    • Bradycardia
    • COPD and Bronchial Asthma
    • Diabetes Mellius
    • Hyperlipidemia

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