The 450 multi dose pen holds just over 450. It will get you one full dose, and possibly up to 150 more towards your next dosage. Hope this helps. Good luck to you.
ya my experience was that's there's usually 75 ui leftover in each pen ...you can extract it and build it towards another dose.
38 yrs. DOR, TTC since '04, recommended DE but didn't listen 3 IVF's & 1 FET: 1 cancellation, 1 m/c @ 12 wks, 1 chemical, 1 miracle boy & miracle 'natural' PG right now while waiting to cycle (WTF?)
feb 21 hb 154