are vasopressors and inotropes the same?
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Vasopressors are a powerful class of drugs that induce vasoconstriction and thereby elevate mean arterial pressure (MAP). Vasopressors differ from inotropes, which increase cardiac contractility; however, many drugs have both vasopressor and inotropic effects.
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Diabetes insipidus is caused by problems with a chemical called vasopressin (AVP), which is also known as antidiuretic hormone (ADH). AVP is produced by the hypothalamus and stored in the pituitary gland until needed.
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Oxytocin has a single receptor (OXTR) encoded on chromosome 3, whereas vasopressin has three types of receptors, AVPR1a and AVPR1b (also called V3) and V2, on chromosome 20 (De Keyzer et al., 1994; Thibonnier et al., 2002).
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The adrenergic receptors (or adrenoceptors) are a class of metabotropic G protein -coupled receptors that are targets of the catecholamines, especially norepinephrine or noradrenaline, and epinephrine ( adrenaline ). ... There are two main groups of adrenergic receptors, α and β, with several subtypes.
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Positive inotropic agents (digoxin, dobutamine) move patients to a higher ventricular function curve. Vasodilators (ACE inhibitors, nitroprusside) also move patients to improved ventricular function curves while reducing cardiac filling pressure.
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Caution is advised when alpha-adrenergic blocking agents including URIMAX capsules, are co-administered with PDE5 inhibitors. Alpha-adrenergic blockers and PDE5 inhibitors are both vasodilators that can lower blood pressure. Concomitant use of these two drug classes can potentially cause symptomatic hypotension.
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Toprol XL (metoprolol succinate) Lowers blood pressure and controls heart rate. Lopressor (metoprolol tartrate) lowers high blood pressure, controls chest pain, and helps treat heart failure and heart attack.
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Metoprolol is the generic form of the brand-name drug Lopressor, prescribed to treat high blood pressure and prevent angina (chest pain). Metoprolol is a type of medication called a beta blocker. It works by relaxing blood vessels and slowing heart rate, which improves blood flow and lowers blood pressure.
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Diabetes insipidus (DI) is a condition caused by hyposecretion of, or insensitivity to the effects of, antidiuretic hormone (ADH), also known as arginine vasopressin (AVP). ADH is synthesised in the hypothalamus and transported as neurosecretory vesicles to the posterior pituitary.
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Secondly, metoprolol and metoprolol ER have different brand-name equivalents: Brand version of metoprolol: Lopressor. Brand version of metoprolol ER: Toprol XL.
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The adrenergic receptors (or adrenoceptors) are a class of metabotropic G protein -coupled receptors that are targets of the catecholamines, especially norepinephrine or noradrenaline, and epinephrine ( adrenaline ).
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Vasopressin (Antidiuretic Hormone) Vasopressin (arginine vasopressin, AVP; antidiuretic hormone, ADH) is a peptide hormone formed in the hypothalamus, then transported via axons to the posterior pituitary, which releases it into the blood.
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Adenosine, dipyridamole (Persantine), and dobutamine are the most widely available pharmacologic agents for stress testing. Regadenoson, an adenosine analog, has a longer half-life than adenosine, and therefore a bolus versus continuous administration. Adenosine, dipyridamole, and regadenosine are cardiac vasodilators.
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Isoproterenol is a potent nonselective beta-adrenergic agonist with very low affinity for alpha-adrenergic receptors. Intravenous infusion of isoproterenol in man lowers peripheral vascular resistance, primarily in skeletal muscle but also in renal and mesenteric vascular beds. Diastolic pressure falls.
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Many patients are given calcium-channel blockers such as verapamil and diltiazem. These drugs are contraindicated in systolic dysfunction because they reduce inotropy and stroke volume, but inotropy may be normal in diastolic dysfunction so these drugs do not seriously impair stroke volume in these patients.
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Adrenergic receptors have two main types, namely, alpha and beta receptors. ... Alpha receptors are mostly involved in the stimulation of effector cells and constriction of blood vessels. On the other hand, beta receptors are mostly involved in the relaxation of effector cells and dilatation of blood vessels.
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Indapamide is a diuretic (also called a "water pill") approved by the FDA in 1983. Indapamide acts on the kidneys to boost the elimination of sodium, potassium, and water in the urine. This results in increased urination, which lowers blood pressure by reducing the fluid in blood vessels and body tissues.