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.