Save up -80% on Sapropterin

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RX BIN: 015558RX PCN: HTGroup ID: DDN6600Card Holder ID: DDN6600
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2019 Price of Kuvan

$8,775.84240 tablets/100mg
price without discount in nearest pharmacy. Price may vary.

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We offer free Kuvan coupons and discounts that may help you save up to 80% off the retail price in your local pharmacy. Just print your coupon! It’s ready to use and never expire. Present your manufacturer copay card in most local pharmacies to get a discount on Sapropterin every time. What are you waiting for? Claim your prescription drug card now!

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Sapropterin volume of distribution

The best structural model to describe the pharmacokinetics of sapropterin was a two-compartment model with first-order input, first-order elimination and a baseline endogenous BH4 concentration term. Total bodyweight was the only significant covariate identified, the inclusion of which on both the apparent clearance (mean = 2100 L/h/70 kg) and central volume of distribution (mean = 8350 L/70 kg) substantially improved the model’s ability to describe the data. The mean (SD) terminal half-life of sapropterin was 6.69 (2.29) hours and there was little evidence of accumulation, even at the highest dose.

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What is Sapropterin

Sapropterin (tetrahydrobiopterin or BH4) is a cofactor in the synthesis of nitric oxide. It is also essential in the conversion of phenylalanine to tyrosine by the enzyme phenylalanine-4-hydroxylase; the conversion of tyrosine to L-dopa by the enzyme tyrosine hydroxylase; and conversion of tryptophan to 5-hydroxytryptophan via tryptophan hydroxylase. (Wikipedia)

Sapropterin mechanism of action

Tetrahydrobiopterin (BH4) is a natural co-factor or co-enzyme for phenylalanine-4-hydroxylase (PAH),Tetrahydrobiopterine, and tryptophan-5-hydroxylase. Tetrahydrobiopterin is also a natural co-factor for nitrate oxide synthase. Therefore BH4 is required for the conversion of phenylalanine to tyrosine, for the production of epinephrine (adrenaline) and the synthesis of the monoamine neuro-transmitters, serotonin, dopamine, and norepinephrine (noradrenaline). It is also involved in apoptosis and other cellular events mediated by nitric oxide production. As a coenzyme, BH4 reacts with molecular oxygen to form an active oxygen intermediate that can hydroxylate substrates. In the hydroxylation process, the co-enzyme loses two electrons and is regenerated in vivo in an NADH-dependent reaction. As a co-factor for PAH, tetrahydrobiopterin allows the conversion of phenylalanine to tyrosine and reduces the level of phenylalanine in the bloodstream, thereby reducing the toxic effects of of this amino acid. Normal serum concentrations of phenylalanine are 100 micomolar, while elevated (toxic) levels are typically 1200 micromolar. Individuals with a deficiency in tetrahydrobiopterin are not able to efficiently convert phenylalanine to tyrosine. The excess levels provided by tetrahydrobiopterin supplementation help improve enzyme efficiency. As a co-factor for tyrosine hydroxylase, BH4 facilitates the conversion of tyrosine to L-dopa while as a co-factor for tryptophan hydroxylase, BH4 allows the conversion of tryptophan to 5-hydroxytryptophan, which is then converted to serotonin.

Dosage forms of Sapropterin

FormRouteStrength
Powder, for solutionoral100 mg/1
Powder, for solutionoral500 mg/1
Tabletoral100 mg

Prescription Generics

false

International Brands

Kuvan

Synonyms

2-Amino-6-(1,2-dihydroxypropyl)-5,6,7,8-tetrahydoro-4(1H)-pteridinone 5,6,7,8 tetrahydrobiopterin

Manufacturers

Biomarin Pharmaceutical Inc

CAS number

62989-33-7

UNII

EGX657432I

State

solid

Affected organisms

Humans and other mammals

Indication of Sapropterin

For the treatment of tetrahydrobiopterin (BH4) deficiency.

Toxicity of Sapropterin

Deficiency for either PAH or BH4 can result in high blood phenylalanine concentrations, which are toxic to the brain and can lead to neurological and behavioural disorders such as lower intelligence, decreased mental concentration, slowed reaction time, depression and phobias.

RX24 Drugs Disclaimer: consult your healthcare provider before buying a Sapropterin on prescription or using an RX manufacturer savings coupon. Content on this page is provided for informational purposes only. Any use of this information is at your own risk.

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