Invokana vs Metformin

A side-by-side look at two diabetes medications advertised on TV. Informational only — not medical advice.

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Information reviewed July 24, 2026

US InvokanaUS Metformin
Generic namecanagliflozinmetformin
Drug classSGLT2 InhibitorBiguanide
TreatsType 2 diabetes, diabetic kidney diseaseType 2 diabetes
CategoryDiabetesDiabetes
ManufacturerJanssenVarious (generic)
Year approved20131995
FDA warningModerate warningsBlack box warning
Est. TV ad spend$110M$2M
Common side effectsGenital yeast infections, Urinary tract infections, Increased urination, Risk of leg/foot amputationNausea, Diarrhea, Abdominal discomfort, Vitamin B12 deficiency

Frequently asked questions

Is Invokana or Metformin better?

Neither is universally "better." Invokana (canagliflozin) and Metformin (metformin) are both used for diabetes, but the right choice depends on your medical history, insurance and your doctor's guidance. This comparison is informational only.

What's the difference between Invokana and Metformin?

Invokana is a SGLT2 Inhibitor made by Janssen, while Metformin is a Biguanide made by Various (generic). See the table above for a side-by-side breakdown.

Which one spends more on TV ads?

Invokana has the larger estimated TV advertising budget of the two.

TVPills

A reference tool to help identify prescription medications and supplements seen in television advertising. This is not medical advice. Always consult a healthcare professional.

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