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A Review on Efficacy and Safety of SGLT2 Inhibitors as Add-on Therapy with Metformin
Korean J Clin Pharm 2018;28(3):243-249
Published online September 30, 2018
© 2018 Korean College of Clinical Pharmacy.

Kyeong Hye Jeong*

College of Pharmacy, Chung-Ang University, Seoul 06974, Republic of Korea
Correspondence to: Kyeong Hye Jeong, College of Pharmacy, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
Tel: +82-2-820-6952, Fax: +82-2-816-7338
Received August 8, 2018; Revised September 18, 2018; Accepted September 20, 2018.
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted noncommercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Background: The new type of diabetes treatment, SGLT2 inhibitors, has been approved for monotherapy and combination therapy, but medical insurance is only allowed in combination therapy with metformin, which is the first choice for type 2 diabetes treatment.
Methods: The SGLT2 inhibitors prescribed in Korea are dapagliflozin, empagliflozin and ipragliflozin. A review was conducted using Pubmed to evaluate efficacy and safety for these medications with metformin combination therapy. 10 studies were selected by searching for keywords and related references and were reviewed in full. The mechanism of action, pharmacokinetics, and the economics of treatment with SGLT2 inhibitors were examined.
Results: SGLT2 inhibitors had moderate glycemic control when added to the treatment of patients with type 2 diabetes who were not being regulated by metformin monotherapy. They also showed positive effects such as weight loss, as well as the lowering of blood pressure. Hypotension and serious side effects were relatively low. However, the risk of genital infection was increased.
Conclusion: The SGLT2 inhibitors are a new class of drugs that promote glucose excretion in the urine. They are a good choice for combination therapy with metformin for the treatment of type 2 diabetes, with weight loss and very low risk of serious side effects.
Keywords : SGLT2 inhibitors, metformin, dapagliflozin, empagliflozin, ipragliflozin

September 2018, 28 (3)
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