my compound sema pharmacy changed my formula without warning and my injection sites are angry
11 months on compound sema, very steady experience until last month. The previous formula was clean, no additive, my pharmacy of record had been the same for the entire 11 months.
Last refill arrived and I noticed the label looked slightly different. Read it more carefully and there's now B12 listed in the ingredients. Nobody told me. No email, no notification in the dashboard, nothing. Just got the new vials and assumed they were the same as before because why wouldn't they be.
Started using them as normal and within about 5 days my injection sites started getting red and slightly raised. Went to a different injection area thinking maybe I'd irritated the previous spot. Same thing happened in the new spot. By week 2 I had 3 separate raised spots that took forever to fade. I'm a nurse and I see B12 IM injection reactions all the time at work, this looks identical to those.
Is silent formulation swapping common practice? Do most platforms just rotate based on whatever pharmacy has stock that month without telling people? I feel like this should require some kind of notification at minimum.