Quarterly report pursuant to Section 13 or 15(d)

Document and Entity Information

Document and Entity Information - shares
9 Months Ended
Sep. 30, 2019
Nov. 12, 2019
Document And Entity Information [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Sep. 30, 2019  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q3  
Entity Registrant Name Baudax Bio, Inc.  
Entity Central Index Key 0001780097  
Current Fiscal Year End Date --12-31  
Entity Current Reporting Status No  
Entity Filer Category Accelerated Filer  
Entity Common Stock, Shares Outstanding   100
Entity Shell Company false  
Entity Small Business true  
Entity Emerging Growth Company true  
Entity Ex Transition Period true  
Trading Symbol BXRX  
Entity File Number 001-39101  
Entity Tax Identification Number 474639500  
Entity Address, Address Line One 490 Lapp Road  
Entity Address, City or Town Malvern  
City Area Code 484  
Local Phone Number 395-2440  
Entity Address, Postal Zip Code 19355  
Entity Address, State or Province Pennsylvania