Firiron 3 pyrophosphates, ferrous sulfate (65 mg), and ferrous gluconate are forms of iron supplementation, while ferrous fumarate provides a daily dose of 600 mg. It is important to consider the best time to take calcium citrate alongside these iron medications. The best time to take calcium citrate is typically between meals, as this can enhance absorption and reduce potential interactions with iron supplements. Therefore, when managing your iron intake with ferrous sulfate or ferrous gluconate, ensuring you take calcium citrate at the best time to take calcium citrate can help optimize the effectiveness of both supplements. Remember, the best time to take calcium citrate can make a significant difference in your overall nutrient absorption.