Save up -80% on Guanethidine
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2018 Price of Guanethidine
Guanethidine monosulf powder
* price without discount in nearest pharmacy. Price may vary.
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Guanethidine volume of distribution
Discount Cards 16,000+
Clients Benefit 29%
Total savings $4,735,080
What is Guanethidine
An antihypertensive agent that acts by inhibiting selectively transmission in post-ganglionic adrenergic nerves. It is believed to act mainly by preventing the release of norepinephrine at nerve endings and causes depletion of norepinephrine in peripheral sympathetic nerve terminals as well as in tissues.
Guanethidine mechanism of action
Guanethidine acts at the sympathetic neuroeffector junction by inhibiting or interfering with the release and/or distribution of norepinephrine, rather than acting at the effector cell by inhibiting the association of norepinephrine with its receptors. It is taken up by norepinephrine transporters. It becomes concentrated in NE transmitter vesicles, replacing NE in these vesicles. This leads to a gradual depletion of NE stores in the nerve endings. Once inside the terminal it blocks the release of noradrenaline in response to arrival of an action potential. In contrast to ganglionic blocking agents, Guanethidine suppresses equally the responses mediated by alpha-and beta-adrenergic receptors but does not produce parasympathetic blockade. Since sympathetic blockade results in modest decreases in peripheral resistance and cardiac output, Guanethidine lowers blood pressure in the supine position. It further reduces blood pressure by decreasing the degree of vasoconstriction that normally results from reflex sympathetic nervous activity upon assumption of the upright posture, thus reducing venous return and cardiac output more.
Dosage forms of Guanethidine
Apo Guanethidine Sulfate Tab 10mg
Humans and other mammals
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