alogliptin vs sitagliptin
PlainMeds reviewed this comparison against our methodology in August 2026. It places FDA and CMS record fields side by side, without recommending either medication.
Side-by-side comparison of alogliptin and sitagliptin. Data from FDA drug databases (Orange Book, NDC Directory, recalls, shortages) covering 20,000+ approved drugs, plus CMS pricing; see our methodology.
Nesina
Januvia
No summary available.
No summary available.
Information not available.
Information not available.
Information not available.
Information not available.
- • Upper respiratory tract infection
- • Common cold
- • Diarrhea
- • High blood pressure
- • Headache
- • Diarrhea
- • Upper respiratory tract infection (like a cold)
- • Headache
- Diarrhoea 134
- Nausea 124
- Vomiting 110
- Acute Kidney Injury 101
- Pemphigoid 101
- Blood Glucose Increased 4,453
- Nausea 3,790
- Diarrhoea 3,470
- Fatigue 2,885
- Headache 2,508
No specific warnings noted.
No specific warnings noted.
No pregnancy information available.
No pregnancy information available.
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How to Read This alogliptin vs sitagliptin Comparison
alogliptin is classified in the DPP-4 Inhibitor drug class, while sitagliptin sits within the DPP-4 Inhibitor class. Because both drugs share the same classification, they are often considered interchangeable in theory, but clinical outcomes rarely track that cleanly. Both drugs are prescription-only, so a licensed provider must authorize use.
Adverse event totals above are pulled from the FDA's Adverse Event Reporting System (FAERS). For these top-ranked reactions alone, alogliptin has 570 submissions while sitagliptin has 17,106. Those figures reflect cumulative reporting volume, not per-patient risk, so older, widely dispensed drugs typically look worse on count alone. No direct interaction between these two drugs is listed in our FDA-derived dataset, though co-prescription still warrants pharmacist review. Serious warnings, pregnancy guidance, and contraindications can differ even when indications overlap.
A table cannot represent individual circumstances. Data here is sourced from FDA Structured Product Labels (SPL) and FAERS, both of which update as manufacturers and clinicians submit new information. This registry does not provide medical, treatment, substitution, or medication-change directions for alogliptin or sitagliptin.
Registry boundary: This comparison displays source-record fields and does not provide individualized medical direction.