Save up -80% on Epoprostenol
|Note: this is a drug discount program, not an insurance plan.|
|RX BIN: 015558||RX PCN: HT||Group ID: DDN6600||Card Holder ID: DDN6600|
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2019 Price of Flolan
|$530.88||90 vials/0.5 mg|
|Price with discount in nearest pharmacy. Price may vary.|
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Epoprostenol volume of distribution
No available chemical assay is sufficiently sensitive and specific to assess the in vivo human pharmacokinetics of epoprostenol. Animal studies using tritium-labeled epoprostenol have indicated a high clearance (93 mL/kg/min), small volume of distribution (357 mL/kg), and a short half-life (2.7 minutes).
Discount Cards 16,000+
Clients Benefit 29%
Total savings $4,735,080
What is Epoprostenol
A prostaglandin that is a powerful vasodilator and inhibits platelet aggregation. It is biosynthesized enzymatically from prostaglandin endoperoxides in human vascular tissue. The sodium salt has been also used to treat primary pulmonary hypertension.
Epoprostenol mechanism of action
Prostaglandins are present in most body tissues and fluids and mediate many biological functions. Epoprostenol (PGI2) is a member of the family of prostaglandins that is derived from arachidonic acid. The major pharmacological actions of epoprostenol is ultimately inhibition of platelet aggregation. Prostacyclin (PGI2) is released by healthy endothelial cells and performs its function through a paracrine signaling cascade that involves G protein-coupled receptors on nearby platelets and endothelial cells. The platelet Gs protein-coupled receptor (prostacyclin receptor) is activated when it binds to PGI2. This activation, in turn, signals adenylyl cyclase to produce cAMP. cAMP goes on to inhibit any undue platelet activation (in order to promote circulation) and also counteracts any increase in cytosolic calcium levels which would result from thromboxane A2 (TXA2) binding (leading to platelet activation and subsequent coagulation). PGI2 also binds to endothelial prostacyclin receptors and in the same manner raise cAMP levels in the cytosol. This cAMP then goes on to activate protein kinase A (PKA). PKA then continues the cascade by phosphorylating and inhibiting myosin light-chain kinase which leads to smooth muscle relaxation and vasodilation. Notably, PGI2 and TXA2 work as physiological antagonists.
Dosage forms of Epoprostenol
|Injection, powder, for solution||intravenous||.5 mg/1|
|Injection, powder, for solution||intravenous||1.5 mg/1|
|Injection, powder, lyophilized, for solution||intravenous||.5 mg/1|
(5Z,13e)-(15S)-6,9alpha-Epoxy-11alpha,15-dihydroxyprosta-5,13-dienoate (5Z,9alpha,11alpha,13e,15S)-6,9-Epoxy-11,15-dihydroxyprosta-5,13-dien-1-oic acid
Actelion Pharmaceuticals Ltd
Humans and other mammals
Indication of Epoprostenol
For the long-term intravenous treatment of primary pulmonary hypertension and pulmonary hypertension associated with the scleroderma spectrum of disease in NYHA Class III and Class IV patients who do not respond adequately to conventional therapy.
Toxicity of Epoprostenol
Symptoms of overdose are extensions of its dose-limiting pharmacologic effects and include flushing, headache, hypotension, nausea, vomiting, and diarrhea. Most events were self-limiting and resolved with reduction or withholding of epoprostenol. Single intravenous doses at 10 and 50 mg/kg (2703 and 27,027 times the recommended acute phase human dose based on body surface area) were lethal to mice and rats, respectively. Symptoms of acute toxicity were hypoactivity, ataxia, loss of righting reflex, deep slow breathing, and hypothermia.
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