The new guidelines provide public health guidance on pharmacological agents for managing hyperglycaemia in type 1 and type 2 diabetes for use in primary health-care in low-resource settings. These guidelines update the recommendations for managing hyperglycaemia in the WHO Package of Essential NCD Interventions (WHO PEN) for primary care in low-resources settings, reviewing several newer oral agents as second- and third-line treatment: dipeptidyl peptidase-4 inhibitors, sodium-glucose co-transporter 2 inhibitors and thiazolidinediones. The guidelines also present recommendations on the selection of type of insulin (analogue versus human insulin) for adults with type 1 and type 2 diabetes.