The following drugs can cause bleeding lungs:
AmphotericinAmphotericin b
Amphotericin b liposomal
Amphotericin b topical B, anticoagulants,
cocaineDrug abuse,
cyclophosphamide, haloperidol, hydralazine mitomycin, nitrofurantoin, penicillamine, propylthiouracil, sulfonamides, urokinase
Of this group, only those in bold print would be used to treat pneumonia.
It is much more likely that the pneumonia (not a drug used to treat it) was the cause of the bleeding and organ failure. This could be an infectious pneumonia (bacteria or virus) or one of a number of non-infectious pneumonias that are characterized by lung hemorrhage and can lead to multiple organ failure.
You should ask the attending physician what type of pneumonia this was.