Seems legit on what he is saying.
http://www.drugs.com/pro/serostim.htmlEach vial of SerostimŽ 4 mg is reconstituted in 0.5 to 1 mL of Bacteriostatic Water for Injection, USP (0.9% Benzyl Alcohol preserved). For patients sensitive to Benzyl Alcohol, SerostimŽ may be reconstituted with Sterile Water for Injection, USP [see Pediatric Use (8.4)].
When SerostimŽ is reconstituted with Sterile Water for Injection, USP, the reconstituted solution should be used immediately and any unused portion should be discarded.
When SerostimŽ is reconstituted with Bacteriostatic Water for Injection, USP (0.9% Benzyl Alcohol preserved) the reconstituted solution may be refrigerated (2-8°C/36-46°F) for up to 14 days.