“…Likewise, a similar increase was also observed in a Japanese pharmacovigilance database, particularly among patients treated with vildagliptin, linagliptin, or teneligliptin (Arai, Shirakawa, Konishi, Sagawa, & Terauchi, 2018). Several observational studies (all case-control designs) have also been conducted and it was reported that a significantly increased or a trend towards an increased risk of BP is associated with the usage of DPP4is with odds ratios ranging between 1.58 and 3.16 (Benzaquen et al, 2018;Kridin & Bergman, 2018;Lee, Lee, Yoon, & Kim, 2019;Plaquevent, et al, 2019;Varpuluoma et al, 2018). Moreover, Benzaquen et al has reported that application of DPP4is increases the risk of BP of almost 3-fold, and the increase is associated with vildagliptin rather than other gliptins (Benzaquen et al, 2018).…”