De hyppigste forventede bivirkninger er primært gastrointestinale, herunder obstipation, flatulens, dyspepsi, abdominalsmerter, og som sædvanligvis bedres ved fortsat behandling.
The most commonly expected adverse events are mainly gastrointestinal, including constipation, flatulence, dyspepsia, abdominal pain and usually ameliorate on continued treatment.