My girlfriend has 1500MG over an 8 hour period, but she always misses doses, its supposed to be every night for 7 days, but we are lucky for her to have 5 days. We've got her iron levels down to about 1200, but its been at around 2000-2800 for the past year or so. Would she be able to do an overnight dose, and then start up another one when she wakes up and have it administered through out the day and another one at night? Thanks for the help!