Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

Document and Entity Information - USD ($)
12 Months Ended
Sep. 30, 2020
Nov. 30, 2020
Mar. 31, 2020
Document and Entity Information [Abstract]      
Entity Registrant Name Citius Pharmaceuticals, Inc.    
Entity Central Index Key 0001506251    
Amendment Flag false    
Current Fiscal Year End Date --09-30    
Document Type 10-K    
Document Period End Date Sep. 30, 2020    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2020    
Entity Current Reporting Status Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Shell Company false    
Entity Emerging Growth Company false    
Entity Common Stock, Shares Outstanding   55,576,996  
Entity File Number 001-38174    
Entity Interactive Data Current Yes    
Entity Incorporation State Country Code NV    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Public Float     $ 15,500,000