Ferrous Sulfate (Iron) 325mg

Generic For: Ferosul

Ferrous sulfate (Ferosul) 325mg is an iron supplement used to treat and prevent iron deficiency anemia and low iron levels in the blood. Each tablet provides elemental iron to help restore healthy red blood cell production. Order online and, after a licensed provider reviews your information, your medication ships from a licensed U.S. pharmacy.

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An iron supplement for iron deficiency anemia and low iron levels

Ferrous Sulfate (Iron) 325mg Quick Facts

Drug classIron supplement
TreatsIron deficiency anemia, low iron levels, iron deficiency prevention
FormTablet
Typical dosingTake 1 tablet by mouth once daily, or as directed by physician. May take with food if upset stomach occurs.
Prescription requiredYes — prescription only

What Is Ferrous Sulfate (Iron) 325mg?

Ferrous sulfate is an iron supplement that replaces iron the body needs to make hemoglobin, the protein in red blood cells that carries oxygen. Many people search for ferrous sulfate iron tablets to treat iron deficiency anemia diagnosed by a healthcare provider. Each 325mg tablet supplies about 65mg of elemental iron. It is taken by mouth, typically until iron stores return to normal as determined by your provider.

What Does Ferrous Sulfate (Iron) 325mg Treat?

Iron deficiency anemia
Low iron levels (iron deficiency without anemia)
Prevention of iron deficiency
Iron loss from chronic blood loss
Increased iron needs during pregnancy (as directed by a provider)

Ferrous Sulfate (Iron) 325mg Dosage

Adults: 1 tablet (325mg) by mouth once daily, or as directed by your provider.
Take on an empty stomach with water; may take with food if stomach upset occurs.
Duration determined by provider based on lab results.

Your prescriber will determine the dose and duration that are right for you. Always follow the directions on your prescription label.

Ferrous Sulfate (Iron) 325mg Side Effects

Common side effects

  • Constipation
  • Nausea
  • Stomach upset or cramps
  • Dark or black stools
  • Diarrhea
  • Heartburn
  • Metallic taste

Serious side effects

Stop taking this medication and seek medical attention right away if you experience:

  • Allergic reaction (rash, swelling, trouble breathing)
  • Severe or persistent stomach pain
  • Vomiting blood or material that looks like coffee grounds
  • Black, tarry stools with blood
  • Signs of iron overload (fatigue, joint pain, abdominal pain)

Warnings & Interactions

Accidental overdose of iron-containing products is a leading cause of fatal poisoning in children under 6 — keep out of reach of children
Do not use with hemochromatosis or hemosiderosis (iron overload conditions)
Separate from antacids, calcium, and dairy by at least 2 hours
May reduce absorption of tetracycline and fluoroquinolone antibiotics, levothyroxine, and levodopa — separate dosing
Vitamin C may increase absorption; tea and coffee may decrease it
Do not exceed the recommended dose
Tell your provider if anemia does not improve or symptoms worsen

Tell your prescriber about all medications, supplements, and health conditions before starting ferrous sulfate (iron) 325mg.

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Frequently Asked Questions

What is ferrous sulfate iron used for?

Ferrous sulfate iron is used to treat and prevent iron deficiency anemia and low iron levels. It replaces iron the body needs to make healthy red blood cells that carry oxygen.

Do I need a prescription for Ferrous Sulfate 325mg?

Yes, this product requires a prescription. A licensed provider reviews your health information before the medication can be dispensed from our U.S. pharmacy.

How does ordering and shipping work?

Complete your order online and a licensed provider reviews your information. Once approved, your medication ships from a licensed U.S. pharmacy directly to your address.

How much elemental iron is in a 325mg tablet?

Each 325mg ferrous sulfate tablet contains approximately 65mg of elemental iron. Your provider will determine how much iron you need based on your lab results.

How should I take ferrous sulfate?

Take it on an empty stomach with water for best absorption, though it can be taken with food if it upsets your stomach. Avoid taking it within 2 hours of antacids, calcium, dairy, tea, or coffee.

How long does it take for iron tablets to work?

Blood counts often begin improving within a few weeks, but restoring iron stores can take several months. Continue treatment as long as your provider directs and follow up with lab testing.

Is it normal for ferrous sulfate to cause dark stools?

Yes, dark or black stools are a common, harmless effect of iron supplements. However, contact your provider if stools are tarry with blood or you have severe stomach pain.