BPD- DA er også et fotosensibiliserende stof men den systemiske eksponering er lav (5- 10% of verteporfineksponeringen indikerende at det meste af stoffet udskilles uændret).
BPD-DA is also a photosensitiser but its systemic exposure is low (5-10% of the verteporfin exposure, suggesting that most of the drug is eliminated unchanged).