Central Agonists

If you don’t know your blood pressure, it’s like not knowing the value of your company - Mehmet Oz

Central Agonists

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Central Agonists (Alpha-2 Receptor Agonist)

Also known as a centrally acting alpha agonists, alpha 2 receptor agonists, alpha 2 inhibitors, and central adrenergic inhibitors, these drugs work by decreasing stimulatory sensors from the brain and central nervous system. They stop nerve impulses in the brain which would cause excitement. They also excite a pathway which will inhibit the response of stimulating nerve endings. This causes the patient to be very relaxed and the blood vessels to be very relaxed. This action can reduce blood pressure at a rapid rate. That is why central agonists are often used in a hypertensive crisis situation.

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  Central Agonists (Alpha-2 Receptor Agonist)

Also known as a centrally acting alpha agonists, alpha 2 receptor agonists, alpha 2 inhibitors, and central adrenergic inhibitors, these drugs work by decreasing stimulatory sensors from the brain and central nervous system. They stop nerve impulses in the brain which would cause excitement. They also excite a pathway which will inhibit the response of stimulating nerve endings. This causes the patient to be very relaxed and the blood vessels to be very relaxed.

Centrally Acting Sympatholytics

Centrally acting sympatholytics block sympathetic activity by binding to and activating alpha2 (α2)-adrenoceptors. This reduces sympathetic outflow to the heart thereby decreasing cardiac output by decreasing heart rate and contractility. Reduced sympathetic output to the vasculature decreases sympathetic vascular tone, which causes vasodilation and reduced systemic vascular resistance, which decreases arterial pressure.

Clonidine (Catapres)

0.1 mg tablet twice daily (morning and bedtime). Elderly patients may benefit from a lower initial dose.

GoodRx

Central alpha agonists are used to treat hypertension, opioid dependence, alcohol addiction, menopause symptoms, ADHD, spasticity, and fibromyalgia. They work by lowering blood pressure, reducing hot flashes, and relieving withdrawal symptoms, and controlling impulsive behavior.

Methyldopa (Aldomet)

The usual daily dosage of methyldopa is 500 mg to 2 g in two to four doses.

Alpha-2 Adrenergic Agonists

The a-2 adrenergic agonists are a class of drugs used to treat multiple, distinctively different, conditions. They are used to treat pain, opioid, benzodiazepine and alcohol withdrawal, symptoms of cigarette craving, high blood pressure, attention-deficit/hyperactivity disorder and panic disorder.

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