Nipradilol is a

beta blocker Beta blockers, also spelled β-blockers, are a class of medications that are predominantly used to manage cardiac arrhythmia, abnormal heart rhythms, and to protect the heart from a second myocardial infarction, heart attack after a first heart ...

and nitric oxide donor.

References

Beta blockers Nitrate esters Isopropyl compounds Secondary alcohols Amines Phenol ethers {{cardiovascular-drug-stub