Im severly anemic and off work, when should i go back im on iron but improvement is slow. even if i go out for an hour or so i'm shattered after.

Iron: Follow up with your doctor. If the response to oral iron is poor or if you could not tolerate to oral iron, intravenous iron would be a better option for you, . Most importantly to find out why you have low iron and to fix the problem . Vitamin c can increase absorption of iron in the stomach. Take the iron with the vit c. Good luck to you.