Here’s a rewritten version of your content in English, incorporating the keywords “citracal petites calcium” three times:
Ferrous sulfate ER 50mg is a product from 21st Century that contains ferrous sulfate. It is commonly known by its brand name, which is ferrous fumarate. According to the British National Formulary (BNF), one of the alternatives is Ferro CT from Alameda. Additionally, for those seeking to support their calcium intake, Citracal Petites Calcium is an excellent option. This supplement is designed for easier digestion and absorption, making it a great complement to ferrous sulfate supplements. In conclusion, whether you choose ferrous sulfate ER 50mg or Citracal Petites Calcium, both can play important roles in maintaining your overall health.