Ketorolac
"I see several people have had adverse reactions to using Toradol.  As for myself, I've spent the last 38 years with severe cluster headache syndrome (also called the 
suicide headache) almost every week to every other week I get those headaches and it has been that way for 38 years.  The one thing that ever worked for me to relieve the constant pain was Demerol (100 u) at a time.  Normally one shot was all I needed and the pain would go away for a week or so.  However, the older I get the more the pain occur.  I now take a shot with 100 U of Demerol, 60 u of Toradol and 40 u of Phenergan (antinausea). That combination has been very good for me to stop the pain for at least a month or so.  It does help most of the time."