The most common side effects with Lonapegsomatropin Ascendis Pharma (which may affect up to around 1 in 10 people) are headache, joint pain, secondary hypothyroidism (a type of low thyroid function) and reactions at the injection site such as redness, pain, itching or swelling.

For the full list of side effects of Lonapegsomatropin Ascendis Pharma, see the package leaflet.

Growth hormone medicines like Lonapegsomatropin Ascendis Pharma must not be used if the patient has an active tumour or an acute life-threatening illness. The medicine must also not be used for promoting growth in children with closed epiphyses (when the large bones have finished growing). For the full list of restrictions, see the package leaflet.