Patienterne bør dog oplyses om, at de kan få bivirkninger i form af svimmelhed, uklarhed eller besvimelsesanfald under behandlingen, og at de i så fald ikke bør køre bil eller betjene maskiner.
However, patients should be advised that they may experience undesirable effects such as dizziness, light-headedness or fainting spells during treatment and told not to drive or operate machines in such circumstances.