De hyppigste bivirkninger hos voksne, der tager Telzir (som ses hos flere end 1 ud af 10 patienter) er diarré og stigning i blodets indhold af triglycerider (en type fedtstoffer).
The most common side effects in adults taking Telzir (seen in more than 1 patient in 10) are diarrhoea and increases in the levels of triglycerides (a type of fat) in the blood.