Drugs Causing Melena: 4
Drug Name	CAS Number	Source
Acetylsalicylic acid	50-78-2	MetaADEDB
Azathioprine	446-86-6	MetaADEDB
Cimetidine	51481-61-9	MetaADEDB
Methotrexate	59-05-2	MetaADEDB

List of proteins causing Melena
Protein Name	Uniprot ID	Source