Complex sentence: Dexrazoxane hydrochloride (Zinecard (Pfizer for USA & Canada); Cardioxane (Novartis for EU & ROW)) is a medication used to protect the heart against the cardiotoxic side effects of anthracycline chemotherapy.
Split into simpler sentences: Dexrazoxane hydrochloride (Zinecard (Pfizer for USA & Canada); Cardioxane (Novartis for EU & ROW)) is a medication. It is used to protect the heart against the cardiotoxic side effects of anthracycline chemotherapy.