Skip to content
Research Article Open access CC BY 4.0

Vildagliptin Induced Bullous Vasculitis: A Case Report with Causality Assessment

Saagarika Pandith, Nagaraja Eranna

Asian Journal of Research in Dermatological Science · pp. 50–55 · Published 15 Apr 2026

10.9734/ajrdes/2026/v9i1154

Abstract

Bullous vasculitis is a rare form of cutaneous small-vessel vasculitis characterized by blistering over inflamed skin. We report a 42-year-old woman with type 2 diabetes mellitus who had been on a vildagliptin-based oral antidiabetic regimen for six months. After discontinuing the medication on her own, 6 months after she developed bilateral lower limb swelling with painful ulcerations and bullae, which persisted in the setting of poor glycemic control. During hospitalization, rechallenge with vildagliptin led to a clear worsening of the lesions. The drug was subsequently withdrawn, following which gradual clinical improvement was observed. Histopathological findings were consistent with bullous leukocytoclastic vasculitis. Discontinuation of vildagliptin along with initiation of insulin therapy resulted in progressive healing of the ulcers. Causality assessment using the Naranjo Adverse Drug Reaction Probability Scale suggested a probable association. This case highlights the importance of recognizing drug-related cutaneous.

Vildagliptin bullous leukocytoclastic vasculitis dipeptidyl peptidase-4 inhibitors drug-induced vasculitis adverse drug reaction

Cited by 1

1 citation reported by external sources — individual citing-article records aren't available to list yet.

Article metrics

Real usage data collected on this platform.

0

Page views

0

PDF downloads

0

Outbound clicks

1

Citations

Views by country

Approximate, from request IP at view time — not citizenship or institution. Countries with fewer than 5 views are grouped as "Other".

No views recorded yet.

Traffic sources

Referring site, by host.

No traffic recorded yet.

Views and downloads exclude known bots/crawlers. Citations combines this platform's own DOI-resolved index with each external source's own reported total — see Cited by above for individually listed citing works. Last refreshed 0 seconds ago.