What Is Integra F? Uses, Dosage, and What You Need to Know in 2026

If your doctor just prescribed Integra F and you want to know more about it before filling your prescription, this is the guide for you. Here's everything patients need to know about Integra F — what's in it, what it treats, how to take it, and what to watch for.

What Is Integra F?

Integra F is a brand-name prescription supplement manufactured by U.S. Pharmaceutical Corporation. It is classified as an iron product combined with vitamins and minerals. Each maroon capsule contains:

• 125 mg elemental iron (from 191.1 mg Ferrous Fumarate + 135.9 mg Polysaccharide Iron Complex)
• 1 mg Folic Acid (the standard therapeutic dose for anemia treatment)
• 40 mg Ascorbic Acid (Vitamin C) (from ProAscorb C — helps enhance iron absorption)
• 3 mg Niacin (Vitamin B3) (from ProAscorb C)

It is labeled as "Rx only" (prescription required) and is made in maroon Vcaps capsules imprinted with "Integra F" and the "US" logo. It comes in 30-capsule and 90-capsule bottles.

What Is Integra F Used For?

Integra F has three labeled indications:

1. Iron deficiency anemia — treating anemia caused by insufficient iron (from poor intake, excessive loss, or increased need)
2. Folate deficiency anemia — treating anemia caused by insufficient folic acid (Vitamin B9)
3. Pregnancy support — prevention and treatment of iron deficiency in pregnancy, plus maintenance of folic acid levels

Integra F is particularly valued in cases where patients need a high-dose iron supplement but have had difficulty tolerating the GI side effects of standard ferrous sulfate.

How Do You Take Integra F?

Standard dosing per the prescribing information:

• Dose: One capsule daily
• Timing: Between meals, or as directed by your physician
• Age: Adults and persons over 12 years of age
• Storage: Room temperature 59–86°F (15–30°C), dry place, away from children

Do not take more than one capsule per day unless specifically directed by your doctor. Do not open, crush, or chew the capsule — swallow it whole with a full glass of water.

Who Should NOT Take Integra F?

Do not take Integra F if you have:

• Hemosiderosis or hemochromatosis (iron overload disorders)
• Hemolytic anemia (red blood cells broken down too quickly)
• Pernicious anemia (B12 deficiency anemia) — folic acid can mask its symptoms
• Known allergy to any of the ingredients
• Children under 12 years of age

Integra F vs. Other Iron Supplements: Key Differences

What sets Integra F apart from standard iron supplements is its dual-iron delivery system. Most iron supplements use a single source of iron (ferrous sulfate, ferrous gluconate, or carbonyl iron). Integra F uses both Ferrous Fumarate and Polysaccharide Iron Complex together — providing two pathways for iron absorption and reducing the concentration of any single iron form in the gut, which is thought to improve tolerability.

Additionally, the 1 mg folic acid in each capsule is a full therapeutic dose — not a trace amount. This is especially important during pregnancy, when folic acid is critical for fetal neural tube development.

How to Get Integra F

You need a prescription from a licensed healthcare provider. Once you have your prescription, use medfinder to find a pharmacy near you that has Integra F in stock. Because it's a specialty brand-only supplement, not all pharmacies carry it — checking multiple pharmacies is often necessary.