Every other injection with Winstrol my needle gets clogged. I use a separate 21 gauge to draw and then a 23 gauge to inject. I've tried the 21 gauge also for injection and that clogs too. I make sure I shake the he'll out of the bottle b4. It is human grade. Not sure if I'm allowed to post the manufacturer but it is a major pharmaceutical company, not underground. Is there anything I can do?