Ferrous Cation: Side Effects, Uses & Monitoring
Hailey Fe 1.5/30 is indicated for the prevention of pregnancy in women who elect to use oral contraceptives as a method of contraception.
- Data source
- FDA labeling via NIH DailyMed (label e3f602d6…)
- Label version
- current
- Last reviewed
- 2026
Reported adverse reactions
Reactions listed in current FDA labeling, with the highest frequency reported across summarized placebo-controlled trials.
No structured frequency data available in current labeling. Consult the official label.
Labeled uses (from FDA prescribing information)
Hailey Fe 1.5/30 is indicated for the prevention of pregnancy in women who elect to use oral contraceptives as a method of contraception. Oral contraceptives are highly effective. Table 1 lists the typical accidental pregnancy rates for users of combination oral contraceptives and other methods of contraception. The efficacy of these contraceptive methods, except sterilization, depends upon the reliability with which they are used. Correct and consistent use of methods can result in lower failure rates. TABLE 1 LOWEST EXPECTED AND TYPICAL FAILURE RATES DURING THE FIRST YEAR OF CONTINUOUS USE OF A METHOD | % Of Women Experiencing an Unintended Pregnancy in the First Year of Continuous Use | Method | Lowest Expected* | Typical** | (No contraception) | (85) | (85) | Oral contraceptives | | 3 | Combined | 0.1 | N/A*** | progestin only | 0.5 | N/A*** | Diaphragm with spermicidal cream or jelly | 6 | 20 | Spermicides alone (foam, creams, gels, vaginal suppositories, and vaginal film) | 6 | 26 | Vaginal Sponge | | | nulliparous | 9 | 20 | parous | 20 | 40 | Implant | 0.05 | 0.05 | Injection: depot medroxyprogesterone acetate | 0.3 | 0.3 | IUD | | | progesterone T | 1.5 | 2 | copper T 380A…
Frequently Asked Questions
What is Ferrous Cation used for?
FDA labeling lists the approved uses shown above under "Labeled uses." This summary is informational; only a qualified prescriber can determine whether a medication is appropriate for you.
What are the most commonly reported side effects of Ferrous Cation?
Current labeling for this ingredient does not include a structured frequency table that we can reproduce. Review the official label linked below.
Does Ferrous Cation require lab monitoring?
Monitoring needs vary. Ask your healthcare provider whether any lab tests apply while taking Ferrous Cation.
Where does this information come from?
All clinical facts on this page were extracted from the current FDA-registered product labeling for this ingredient, published by manufacturers through NIH DailyMed. See the source link below.
Medical disclaimer: Educational content extracted from public FDA labeling. Not medical advice. Always consult a qualified healthcare professional before starting, stopping, or changing any medication.