Quarterly report pursuant to Section 13 or 15(d)

Document and Entity Information

Document and Entity Information - shares
6 Months Ended
Mar. 31, 2021
May 10, 2021
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-Q  
Document Period End Date Mar. 31, 2021  
Document Fiscal Period Focus Q2  
Document Fiscal Year Focus 2021  
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   135,473,947
Entity File Number 001-38174  
Entity Interactive Data Current Yes  
Entity Incorporation State Country Code NV