There was no increased risk of infections with IV iron .
Gastrointestinal AEs were reduced with IV iron .
CONCLUSION Intravenous iron therapy is not associated with an increased risk of SAEs or infections .
Infusion reactions are more pronounced with IV iron
OBJECTIVE To amass all available evidence regarding the safety of intravenous ( IV ) iron preparations to provide a true balance of efficacy and safety .
Clinical efficacy and safety of IV ferric carboxymaltose (FCM) treatment of RLS: a multi-centred, placebo-controlled preliminary clinical trial.
OBJECTIVE Intravenous ( IV ) iron has been used as a treatment to reduce Restless Legs Syndrome ( RLS ) symptoms , but two double-blinded trials of a frequently prescribed IV iron formulation , iron sucrose , failed to show lasting efficacy . This study evaluates efficacy and safety of a new IV iron formulation ( ferric carboxymaltose , FCM ) with molecular properties that may make iron more available for uptake to the brain than iron sucrose does . METHODS In this 28-day , multi-centre , r and omised , placebo-controlled trial 46 RLS patients were discontinued from all RLS treatment . Twenty-four received 500 mg FCM in two doses 5 days apart and 22 received a matching placebo . At day 28 , those on placebo were given a single 1000 mg IV FCM and those not responding to initial treatment were given a third dose of 500 mg FCM . Patients were followed up for 24 weeks or until needing added RLS treatment . RESULTS FCM significantly improved primary and secondary outcomes compared to placebo :  International Restless Legs Syndrome study group severity scale ( IRLS ) average ( SD ) decrease of 8.9 ( 8.52 ) versus 4.0 ( 6.11 ) , p=0.040 ; Clinical Global Inventory of Change ( CGI-1 ) very much or much improved 48.3 % versus 14.3 % , p=0.004 . Quality of life was also significantly improved . Of the 24 with initial iron treatment 45 % responded and 29 % remitted ( IRLS ≤ 10 ) at day 28 , and 25 % continued free of other RLS medications at 24 weeks after treatment . The single 1000 mg dose on day 28 produced the same degree of treatment response as the divided dose , but the added 500 mg dose for those not responding to the initial treatment showed little benefit . There were no significant adverse events . CONCLUSIONS IV FCM  provided a safe and effective treatment for RLS that lasted for at least 24 weeks for some patients . Larger studies are needed to confirm these results
There was no increased risk of infections with IV iron .
Gastrointestinal AEs were reduced with IV iron .
CONCLUSION Intravenous iron therapy is not associated with an increased risk of SAEs or infections .
Infusion reactions are more pronounced with IV iron
OBJECTIVE To amass all available evidence regarding the safety of intravenous ( IV ) iron preparations to provide a true balance of efficacy and safety .