Comparative Pharmacology
Head-to-head clinical analysis: NESINA versus SITAGLIPTIN PHOSPHATE AND METFORMIN HYDROCHLORIDE.
Peer-Reviewed Evidence
Head-to-head clinical analysis: NESINA versus SITAGLIPTIN PHOSPHATE AND METFORMIN HYDROCHLORIDE.
NESINA vs SITAGLIPTIN PHOSPHATE AND METFORMIN HYDROCHLORIDE
Comparing the clinical profiles, pharmacokinetic behaviors, and safety indices of these two therapeutic agents.
Inhibitor of dipeptidyl peptidase-4 (DPP-4), preventing inactivation of incretin hormones (GLP-1, GIP), thereby increasing insulin secretion and decreasing glucagon release in a glucose-dependent manner.
Sitagliptin inhibits dipeptidyl peptidase-4 (DPP-4), increasing endogenous incretin hormones (GLP-1, GIP) which enhance insulin secretion and decrease glucagon levels in a glucose-dependent manner. Metformin activates AMP-activated protein kinase (AMPK), decreasing hepatic glucose production and improving insulin sensitivity.
25 mg orally once daily.
Initial dose based on current metformin dose: for patients not on metformin, start with sitagliptin 50 mg/metformin 500 mg PO BID; for metformin monotherapy, switch to sitagliptin 50 mg/metformin 500 mg or 1000 mg PO BID; for patients on sitagliptin, start with sitagliptin 50 mg/metformin 500 mg or 1000 mg PO BID. Maximum daily dose: sitagliptin 100 mg, metformin 2000 mg.
None Documented
None Documented
Terminal elimination half-life: 12.4–26.1 hours (mean ~21 hours); supports once-daily dosing
Sitagliptin: terminal t1/2 12.4 hours, allows once-daily dosing. Metformin: terminal t1/2 6.2 hours, accumulates with renal impairment.
Renal: 87% (75% as unchanged drug, 12% as inactive metabolites); Fecal: <1%
Sitagliptin: 87% renal excretion as unchanged drug, 13% fecal (biliary). Metformin: 90% renal excretion as unchanged drug, 10% fecal.
Category C
Category A/B
DPP-4 Inhibitor
DPP-4 Inhibitor