Metapyrone

Metapyrone Brand names, Metapyrone Analogs

Metapyrone Brand Names Mixture

No information avaliable

Metapyrone Chemical_Formula

C₁₂H₁₈N₂O₄

Metapyrone RX_link

http://www.rxlist.com/cgi/generic3/midodrine.htm

Metapyrone fda sheet

Metapyrone FDA

Metapyrone msds (material safety sheet)

Metapyrone Synthesis Reference

No information avaliable

Metapyrone Molecular Weight

254.282 g/mol

Metapyrone Melting Point

200 to 203°C

Metapyrone H₂O Solubility

Soluble

Metapyrone State

Solid

Metapyrone LogP

0.159

Metapyrone Dosage Forms

2.5-mg and 5-mg tablets for oral administration

Metapyrone Indication

For the treatment of symptomatic orthostatic hypotension (OH).

Metapyrone Pharmacology

Midodrine is a prodrug, i.e., the therapeutic effect of orally administered midodrine is due to the major metabolite desglymidodrine formed by deglycination of midodrine. Desglymidodrine diffuses poorly across the blood-brain barrier, and is therefore not associated with effects on the central nervous system. Administration of midodrine results in a rise in standing, sitting, and supine systolic and diastolic blood pressure in patients with orthostatic hypotension of various etiologies. Standing systolic blood pressure is elevated by approximately 15 to 30 mmHg at 1 hour after a 10-mg dose of midodrine, with some effect persisting for 2 to 3 hours. Midodrine has no clinically significant effect on standing or supine pulse rates in patients with autonomic failure.

Metapyrone Absorption

Rapidly absorbed following oral administration. The absolute bioavailability of midodrine (measured as desglymidodrine) is 93% and is not affected by food.

Metapyrone side effects and Toxicity

Symptoms of overdose could include hypertension, piloerection (goosebumps), a sensation of coldness and urinary retention. The single doses that would be associated with symptoms of overdosage or would be potentially life- threatening are unknown. The oral LD₅₀ is approximately 30 to 50 mg/kg in rats, 675 mg/kg in mice, and 125 to 160 mg/kg in dogs. Desglymidodrine is dialyzable.

Metapyrone Patient Information