What is Phenformin for?
For the treatment of type II diabetes mellitus. Phenformin is an anti-diabetic medication (biguanide). It works by lowering glucose production in the liver, delaying glucose absorption from intestines and increasing the body’s sensitivity to insulin.
What is metformin soluble in?
Metformin hydrochloride, USP 2.0 g is soluble in 20 mL of water. The pKa of metformin is 12.4. The pH of a 1% aqueous solution of metformin hydrochloride is 6.68. It is freely soluble in water; slightly soluble in alcohol; practically insoluble in acetone and in methylene chloride.
Is metformin water soluble?
Metformin hydrochloride is freely soluble in water and practically insoluble in acetone, chloroform and ether.
Why is Phenformin banned?
Phenformin is an antidiabetic drug from the biguanide class. It was marketed as DBI by Ciba-Geigy, but was withdrawn from most markets in the late 1970s due to a high risk of lactic acidosis, which was fatal in 50% of cases.
Why does phenformin cause lactic acidosis?
Metformin is associated with lactic acidosis because of interference with pyruvate dehydrogenase function and subsequent decrease in lactate consumption. In patients with rapid reduction of kidney function, reduced excretion and subsequent increase in serum lactate levels cause the acidosis, which can be profound.
How does phenformin cause lactic acidosis?
Phenformin is highly lipid soluble and caused lactic acidosis by crossing the mitochondrial membrane and inhibiting mitochondrial oxidative phosphorylation and also, by inhibiting gluconeogenesis (11,16).
What makes metformin hydrophilic?
Metformin is an unusually hydrophilic drug that mostly exists in a positively charged protonated form under physiological conditions. These physicochemical properties make rapid and passive diffusion through cell membranes unlikely.
Does metformin come in liquid form?
The only FDA-approved liquid formulation of extended-release metformin is now available in the United States. The label for liquid metformin carries a boxed warning about the risk for lactic acidosis with excessive alcohol intake, as alcohol increases the effect of liquid metformin on lactate metabolism.
How does Phenformin cause lactic acidosis?
Phenformin is highly lipid soluble and caused lactic acidosis by crossing the mitochondrial membrane and inhibiting mitochondrial oxidative phosphorylation and also, by inhibiting gluconeogenesis (11,16). Its descendent, metformin, lacks phenformin’s lipid solubility.
What is the chemical name of Phenformin?
Phenformin hydrochloride
| PubChem CID | 13266 |
|---|---|
| Structure | Find Similar Structures |
| Chemical Safety | Laboratory Chemical Safety Summary (LCSS) Datasheet |
| Molecular Formula | C10H15N5.ClH or C10H16ClN5 |
| Synonyms | PHENFORMIN HYDROCHLORIDE 834-28-6 Phenformin HCl Phenethylbiguanide hydrochloride Meltrol More… |
Is phenformin and metformin same?
Both biguanides effectively reduced the fasting blood sugar and body weight of the patients, metformin apparently having a greater effect on blood sugar than phenformin. Serum triglycerides were lower on the larger dose of metformin than on either dose of phenformin.