Shortage of injectable vinblastine

The American Society of Health-System Pharmacists reports a shortage of injectable vinblastine. See the ASHP link for the patients who might be affected by this drug shortage. Note that a number of cancers are treated with vinblastine, and there is no direct substitute. There is now a sole US-approved manufacturer after Ben Venue voluntarily shut the facility at which it manufactured the drug under contract for Bedford Laboratories. 

A flowchart from ASHP Guidelines on Managing Drug Shortages in Hospitals and Health Systems is reproduced below.

Am J Health-Syst Pharm 66:1402 (2009)