An alpha-2 adrenergic agonist that crosses the blood-brain barrier. Clonidine acts centrally by reducing sympathetic tone, resulting in a fall in diastolic and systolic blood pressure and a reduction [..]The active ingredient in a drug used to treat high blood pressure. It is also being studied in the treatment of certain types of cancer pain. is it illegal to order viagra from canada The order of words in an English sentence is very important. A change in word order often results in a change of meaning. Many other languages use inflection, a change in the form of words, to show h... Azithromycin vs doxycycline Duloxetine hydrochloride 30 mg Definition. Clonidine belongs to a class of drugs called central alpha-adrenergic agonists. In the United States, clonidine tablets are sold under the brand name. clomid libido Definition of clonidine - A drug that acts as an alpha₂-adrenoreceptor agonist, used in the treatment of hypertension, opiate withdrawal, and a variety of o. Clonidine definition, a synthetic white crystalline substance, C9H9Cl2N3, used in the treatment of high blood pressure. See more. With all of the different medications on the market today, it's hard to keep track of what they all do. Read this lesson to learn about clonidine, a medication that affects blood pressure, as well as its other uses and side effects. In this lesson, we'll take a closer look at the uses and side effects of clonidine. If you're like me, you might have a hard time keeping up with all of the different medications out there. Clonidine is a medication most often used to treat high blood pressure, or hypertension. It makes sense then that clonidine belongs to a group of medicines called antihypertensives. Clonidine works by altering chemical cues in the brain to relax blood vessels and slow the heart rate, allowing more blood to reach the heart. This reduces the risk of stroke, heart attack, and kidney failure as a result of high blood pressure. In some instances, clonidine is also used to treat attention deficit hyperactivity disorder (ADHD), Gilles de la Tourette's syndrome, menopause, menstrual cramps, and withdrawal symptoms from drugs or alcohol. Rationale: This test has been used to diagnose pheochromocytoma and those paragangliomas that may secrete epinephrine, norepinephrine, or both. Such tumors may cause paroxysmal or persistent hypertension. The test is useful in the investigation of hypertensive patients, especially younger individuals, particularly when hypertension is paroxysmal, suggesting pheochromocytoma. Clonidine suppression test for pheochromocytoma: Examples of misleading results. have concluded that minimal suppression occurs two to three hours after clonidine administration with the greatest diagnostic accuracy (92%) obtained when the normal response is defined as a level of total plasma catecholamine ≤500 pg/m L. Taylor et al have demonstrated an increase in false-positive results by using the 50% reduction criteria. This is especially true if the baseline results are within the established reference interval. Epinephrine secretion increases in response to cold and hypoglycemia. Plasma levels are useful if elevated, especially during or immediately following an episode of hypertension, but false-negative results occur when the specimen is drawn during an uneventful period. Protocol: The patient should fast overnight and abstain from smoking. Clonidine definition CLONIDINE - ORAL Catapres side effects, medical uses, and drug., Clonidine Definition of clonidine in English by Oxford Cipro oral Buy nolvadex fast Buy zovirax eye ointment uk Jan 14, 2019. Clonidine definition is - an antihypertensive drug C9H9Cl2N3 used especially to treat essential hypertension, to prevent migraine headache. Clonidine Definition of Clonidine by Merriam-Webster Clonidine Define Clonidine at What does CLONIDINE mean? Definitions & Translations Definition of clonidine an antihypertensive trade name Catapres that can be administered orally or via transdermal patches. viagra 50 mg cost May 15, 2017. Clonidine tablets Catapres are used alone or in combination with other medications to treat high blood pressure. Clonidine extended-release. Clonidine definition a white, crystalline drug, CHClNHCl, taken orally, used to lower high blood pressure and, experimentally, to ease withdrawal from narcoticsin full clonidine hydrochlorideOrigin.