A basic iron supplement costs under $10 a month at most pharmacies. That covers standard ferrous sulfate tablets, the most commonly recommended form. From there, prices climb depending on the type of iron, the brand, and whether you’re taking pills or getting an infusion. Here’s what to expect across every option.
Generic Ferrous Sulfate: The Cheapest Option
Ferrous sulfate 325mg tablets are the workhorse of iron supplementation. A 30-day supply runs between $8 and $25 depending on where you shop. Walmart consistently offers the lowest price, around $8 for 30 tablets. Walgreens charges roughly $14, Publix about $10, and smaller or specialty pharmacies can charge up to $25 for the same product. These are over-the-counter prices with no prescription needed.
If your doctor writes a prescription for the same ferrous sulfate tablets, you may pay a similar amount out of pocket. Pharmacy discount programs like GoodRx can bring prescription prices down to the $8 range. The prescription and OTC versions are chemically identical, so unless your insurance specifically covers prescription iron (more on that below), buying it off the shelf is usually the simplest route.
Chelated and Specialty Iron Costs More
If standard ferrous sulfate causes stomach problems, which is common, many people switch to gentler forms like iron bisglycinate (a chelated iron). These cost more. Most chelated iron supplements fall in the $0.20 to $0.40 per serving range, which works out to roughly $6 to $12 a month. Popular options like Thorne Iron Bisglycinate and Pure Encapsulations OptiFerin-C land in that middle tier.
Premium brands push past $0.40 per serving, or $12 or more monthly. Products like MegaFood Blood Builder and FullWell Iron Bump fall into this category, often because they bundle iron with vitamin C, folate, or other nutrients meant to boost absorption. Whether the added ingredients justify the higher price depends on your diet and what your doctor recommends, but the iron itself works the same way.
Heme iron supplements, which use a form of iron derived from animal sources, are marketed as easier to absorb. They tend to sit at the higher end of the price spectrum, typically $15 to $25 for a month’s supply, though pricing varies widely by brand.
Subscriptions and Bulk Buying
Several brands now sell iron on a subscription model, shipping a new bottle to your door every month or every few months. One example: BN Healthy offers a three-month iron subscription (iron plus vitamin C) for about $38.70 total, which breaks down to around $12.90 per month. That’s a 30% discount compared to buying single bottles.
Buying in bulk from warehouse stores or online retailers can also shave costs. A 200- or 300-count bottle of generic ferrous sulfate often costs $8 to $15 total, bringing the per-month cost well below $5. If you know you’ll be supplementing for several months, this is the most economical approach.
What Insurance Covers (and Doesn’t)
Most health insurance plans do not cover over-the-counter iron supplements. Medicare Part D explicitly excludes iron, classifying it as a vitamin and mineral product rather than a covered drug. The one major exception across most insurance plans is prenatal vitamins, which often contain iron and are typically covered.
If you have a flexible spending account (FSA) or health savings account (HSA), iron supplements purchased with a prescription may be eligible for reimbursement. Check your specific plan, but this is one way to effectively use pre-tax dollars on a product insurance won’t pay for directly.
Iron Infusions: A Different Price Category
When oral supplements don’t work, either because of absorption issues or severe deficiency, doctors sometimes recommend intravenous iron infusions. The cost difference is dramatic. A single vial of one common IV iron product has a wholesale cost of $1,140. What patients and insurers actually pay varies enormously.
An analysis of private insurance claims found that plans paid an average of $4,316 per visit for the most expensive infusion drug. Other IV iron options were cheaper but still substantial: roughly $3,087 per visit for one alternative, $825 to $1,502 for older formulations, and as low as $412 for the least expensive option. Out-of-pocket costs depend heavily on your insurance. One patient profiled by NPR ended up with a $2,700 bill after insurance negotiations, which she paid off in installments over two years.
Most people with iron deficiency never need infusions. Oral supplements, even the cheapest generic ferrous sulfate, resolve the problem for the majority of people within a few months. Infusions are reserved for cases where pills aren’t absorbed properly, can’t be tolerated, or where iron levels need to come up quickly.
Total Monthly Cost by Type
- Generic ferrous sulfate (bulk): $3 to $5 per month
- Generic ferrous sulfate (30-count): $8 to $15 per month
- Chelated iron bisglycinate: $6 to $12 per month
- Premium or combination formulas: $12 to $25 per month
- Subscription services: $10 to $15 per month
- IV iron infusion (per session): $400 to $4,300 before insurance
For most people treating iron deficiency, the realistic monthly cost is somewhere between $5 and $15. The form of iron you tolerate best matters more than the price tag, since a supplement that causes enough nausea that you stop taking it isn’t saving you anything. Starting with the cheapest option and moving up only if you need to is a reasonable approach that keeps costs low while still getting your levels where they need to be.