Hello.Welcome.Injectable iron is safe and can be during pregnancy.Rate of response with parental
iron is not faster than with optimal doses given orally.However stores can be replenished in a shorter time by parentral therapy
.Side effects are pain,abscess
at the site,flushing,palpitations,headache,joint
pains and sometimes a severe anaphylactic reaction causing vascular collapse.No problem in future.The cause of iron deficiency should be identified.Good luck.