Ferrograd C's prolonged release action means that one tablet a day allows release of the iron over several hours, reducing the likelihood of unpleasant side-effects such as stomach upset. The normal diet usually provides adequate iron for the average person, but if the balance is disturbed by poor diet, failure of absorption, or excessive loss, an iron deficient state develops. Ferrograd C also contains vitamin C, which enhances iron absorption. Pack contains 30 prolonged release tablets suitable for women.