Class

Comment

Metformin

Not recommended in severe/critical patients; patients with gastrointestinal symptoms or lack of oxygen.

Secretagogue

Mild/moderate patients using glucocorticoid:

· Short-acting agents can be used in early stage;

· Middle/long-acting agents if FPG and/or PPG increased or in advanced stage.

α-glucosidase inhibitor

Can be used to control PPG.

Not recommended in severe/critical patients; or in patients with gastrointestinal symptoms.

TZD

Can be used during the process of glucocorticoid treatment.

Regime should be adjusted according to treatment effect.

DPP-4i

Not recommended

SGLT-2i

Not recommended for COVID-19 patients having stress reaction at different levels.