How many mg of ferrous sulfate should I take?

Asked By: Levente Theron | Last Updated: 7th March, 2020
Category: medical health digestive disorders
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Of the various iron salts available, ferrous sulfate is the one most commonly used. Although the traditional dosage of ferrous sulfate is 325 mg (65 mg of elemental iron) orally three times a day, lower doses (eg, 15-20 mg of elemental iron daily) may be as effective and cause fewer side effects.

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Beside this, how many mg of ferrous sulfate should I take for anemia?

A standard daily dosage of 325 mg of ferrous sulfate, in three divided doses, will provide the necessary elemental iron for patients receiving replacement therapy.

Furthermore, is 100mg of iron a day too much? However, iron is LIKELY UNSAFE when taken by mouth in high doses. If you do not have iron deficiency, do not take more than 45 mg per day of elemental iron. Higher doses cause stomach and intestinal side effects such as nausea and vomiting. Higher doses of iron may also cause high levels of hemoglobin in the blood.

Herein, is 65 mg of iron the same as 325 mg?

Ferrous sulfate is the form of iron that is best absorbed by the body. As noted above, 325 mg of ferrous sulfate contains just 65 mg of elemental iron. For example, 240 mg of ferrous gluconate contains just 27 mg of elemental iron, while 325 mg of ferrous fumarate contains 106 mg of elemental iron.

Can you take too much ferrous sulfate?

An overdose of ferrous sulfate can be fatal to a child. Overdose symptoms may include nausea, severe stomach pain, bloody diarrhea, coughing up blood or vomit that looks like coffee grounds, shallow breathing, weak and rapid pulse, pale skin, blue lips, and seizure (convulsions).

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How fast does ferrous sulfate work?

How long does ferrous sulfate take to work? Most people begin to feel better after around 1 week, but it may take up to 4 weeks for the medicine to have full effect. If you are taking ferrous sulfate to prevent anaemia you probably will not feel any different but that does not mean it is not working.

What are the 3 stages of iron deficiency?

In stage 3, anemia (reduced hemoglobin levels) is present but red blood cell appearance remains normal. Changes in the appearance of red blood cells are the hallmark of stage 4; first microcytosis and then hypochromia develop. Iron deficiency begins to affect tissues in stage 5, manifesting as symptoms and signs.

What is considered severe anemia?

Anemia is classified as mild, moderate, or severe based on the concentrations of hemoglobin in the blood. For all of the tested groups, moderate anemia corresponds to a level of 7.0-9.9 g/dl, while severe anemia corresponds to a level less than 7.0 g/dl.

What is the best iron to take for anemia?

Ferrous salts (ferrous fumarate, ferrous sulfate, and ferrous gluconate) are the best absorbed iron supplements and are often considered the standard compared with other iron salts.

How many mg of ferrous sulfate should a pregnant woman take?


The CDC recommends that all pregnant women take a 30 mg/day iron supplement, unless they have hemochromatosis. For women with a low ferritin level and anemia, iron supplementation should be increased to 30 to 120 mg daily.

Is it safe to take ferrous sulfate everyday?

Ferrous sulfate may cause constipation and upset stomach. You should tell your doctor if these side effects become severe or do not go away. The medicine may also turn your stools dark, which is harmless. But black or tarry stools could be a sign of danger, requiring emergency medical help.

How long does it take to get your iron levels up?

– It usually takes 2 to 3 weeks of taking regular iron supplements before your symptoms start to improve. – You may need to keep taking iron for several months to build up your iron reserves and keep your anemia from returning. Take your pills for as long as your doctor recommends, even if your symptoms have improved.

Can you overdose iron?

Acute iron poisoning happens when people overdose on iron supplements. Single doses as low as 10–20 mg/kg may cause adverse symptoms. Make sure to follow the instructions on iron supplements, and never take more than your doctor recommends. Early symptoms of iron poisoning may include stomach pain, nausea and vomiting.

Is 325 mg ferrous sulfate too much?

Although the traditional dosage of ferrous sulfate is 325 mg (65 mg of elemental iron) orally three times a day, lower doses (eg, 15-20 mg of elemental iron daily) may be as effective and cause fewer side effects.

What are the side effects of ferrous sulfate 325 mg?


Side effects of Ferrous Sulfate include:
  • Constipation.
  • Contact irritation.
  • Diarrhea.
  • Dark stools.
  • Gastrointestinal (GI) hemorrhage (rare)
  • Gastrointestinal (GI) irritation.
  • Gastrointestinal (GI) obstruction (wax matrix products; rare)
  • Gastrointestinal (GI) perforation (rare)

What is iron 65 mg used for?

This medication is an iron supplement used to treat or prevent low blood levels of iron (e.g., for anemia or during pregnancy). Iron is an important mineral that the body needs to produce red blood cells and keep you in good health.

Can I take two 65 mg iron pills?

Although the traditional dosage of ferrous sulfate is 325 mg (65 mg of elemental iron) orally three times a day, lower doses (eg, 15-20 mg of elemental iron daily) may be as effective and cause fewer side effects.

Is 65 mg iron safe?

Also, if you get enough iron in your diet and took a 7mg iron supplement, it would be considered toxic and unsafe. A 325-mg tablet of ferrous sulfate heptahydrate has 65 mg (20%) of elemental iron, WHICH IS TOXIC.

What is ferrous sulfate 325 mg used for?

Myoglobin helps your muscle cells store oxygen. Ferrous Sulfate is an essential body mineral. Ferrous sulfate is used to treat iron deficiency anemia (a lack of red blood cells caused by having too little iron in the body). Ferrous sulfate may also be used for other purposes not listed in this medication guide.

How many 65mg iron pills should I take?


Your doctor will tell you how much iron you need to take every day. For the treatment of iron deficiency anemia in adults, 100 to 200 mg of elemental iron per day has been recommended. The best way to take the supplement so that you absorb the greatest amount of iron is to take it in two or more doses during the day.

What is the best iron supplement?

Our Top Picks
  • Feosol Ferrous Sulfate Iron at Amazon.
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  • Mega Food Blood Builder at Amazon.
  • Nature Made Iron at Amazon.
  • Garden of Life Vitamin Code Raw Iron at Amazon.
  • Pure Encapsulations Iron-C Hypoallergenic Supplement at Amazon.
  • Pure Micronutrients Iron Plus Supplement at Amazon.

What is iron 65 mg for?

Nature Made Iron 65 mg (from Ferrous Sulfate) Tablets
Nature Made Iron provides 65 mg iron to help individuals lacking in iron meet their nutrient needs for this essential mineral. Iron is an essential part of hemoglobin, the protein substance that enables red blood cells to carry oxygen throughout the body.