Take Ferrous Sulphate by mouth with water, usually once or twice a day, or as your doctor instructs.

Instructions:

• Take on an empty stomach for better absorption (1 hour before or 2 hours after meals)
  
  
• If it causes stomach upset, take it with a small amount of food
  
  
• Swallow tablets whole; do not crush or chew unless directed
  
  
• For liquid iron, use the measuring dropper provided, not a household spoon
  
  

Missed Dose:

• Take as soon as you remember
  
  
• If it’s almost time for the next dose, skip the missed one
  
  
• Do not double the dose
  
  

Ferrous Sulphate gives your body elemental iron, which is the form your body can use. After taking the medicine, iron is absorbed in the stomach and intestines, then enters the bloodstream.

Your body uses iron to make hemoglobin, the protein in red blood cells that carries oxygen. If you don’t have enough iron, your body can’t make enough red blood cells, leading to anemia.

By increasing iron levels, Ferrous Sulphate:

• Helps the body make more hemoglobin
  
  
• Improves red blood cell production
  
  
• Boosts oxygen flow
  
  

Relieves symptoms of iron deficiency

Ferrous Sulphate may cause mild to moderate side effects, especially in the stomach.

Common side effects:

• Constipation
  
  
• Dark or black stools (this is normal and not dangerous)
  
  
• Nausea
  
  
• Stomach cramps
  
  
• Diarrhea
  
  
• Metallic taste in mouth
  
  

Serious but rare side effects:

• Allergic reaction (rash, itching, swelling, trouble breathing)
  
  
• Iron overdose (especially dangerous in children)
  
  

To reduce side effects:

• Start with a lower dose and increase slowly
  
  
• Take with food if your stomach is sensitive
  
  
• Drink plenty of water and eat high-fiber foods
  
  

Always talk to your doctor if side effects are bothering you.

Before using Ferrous Sulphate, tell your doctor if you have:

• Stomach ulcers or inflammatory bowel disease
  
  
• Iron overload conditions like hemochromatosis
  
  
• Liver disease
  
  
• Diabetes
  
  
• Allergy to iron supplements
  
  

Important precautions:

• Do not take more than the recommended dose
  
  
• Keep away from children – iron overdose can be deadly
  
  
• Use with care during pregnancy and breastfeeding – only under medical advice
  
  

Monitor iron levels with regular blood tests

Certain medications and foods can affect how Ferrous Sulphate works:

• Antacids and calcium supplements reduce iron absorption
  
  
• Thyroid medications (e.g. levothyroxine) may not work well with iron
  
  
• Antibiotics (like tetracycline and ciprofloxacin) should not be taken at the same time
  
  

Avoid taking with:

• Milk, tea, or coffee (these block iron absorption)
  
  

Take with:

Vitamin C (like orange juice) to help absorb more iron

Adults:

• Usually 325 mg tablet once or twice daily
  
  
• Each tablet contains about 65 mg of elemental iron
  
  

Pregnant Women:

• Often need 30–60 mg of elemental iron per day
  
  
• Ferrous Sulphate is often recommended during pregnancy
  
  

Children:

• Dosage is based on body weight
  
  
• Liquid iron may be used for infants or young children
  
  
• Always follow a doctor’s instructions
  
  

Duration:

• Treatment usually continues for 3–6 months, depending on how low your iron levels are
  
  
• Even after symptoms improve, continue for as long as the doctor advises to rebuild iron stores
  
  

Ferrous Sulphate is available both over the counter and by prescription:

• Low-dose tablets (like 65 mg elemental iron) can be bought without a prescription
  
  
• High-dose or special formulations may need a doctor’s prescription
  
  

A doctor may order:

• Blood tests to check iron, hemoglobin, ferritin
  
  
• Monitor your progress and adjust the dose as needed
  
  

Always consult a doctor before starting iron supplements to avoid iron overload or incorrect use.

• What is Ferrous Sulfate used for?
  It is used to treat and prevent iron deficiency anemia — a condition caused by low iron levels in the blood.
  It helps the body produce healthy red blood cells and increase hemoglobin, improving energy and oxygen transport.

• What are the brand names?
  Feosol®, Slow Fe®, Fer-In-Sol®, FeroSul®, Ferro-Bob®, and various generic versions.

• What is the active ingredient?
  Ferrous sulfate, a ferrous (Fe²⁺) salt of iron that provides elemental iron for red blood cell production.

• How does Ferrous Sulfate work?
  It provides iron that is absorbed in the small intestine, where it is incorporated into hemoglobin and myoglobin, helping the body carry and store oxygen efficiently.

• What type of medication is it?
  A nutritional supplement / iron replacement therapy.

• How is Ferrous Sulfate taken?

  • Orally, as tablets, capsules, or liquid.

  • Usually once or twice daily, depending on your doctor’s recommendation.

  • Swallow tablets with a full glass of water.

• When should I take Ferrous Sulfate?

  • Best taken on an empty stomach (1 hour before or 2 hours after meals).

  • If stomach upset occurs, take it with food, but avoid dairy, coffee, or calcium supplements near the same time.

• What are the available strengths?

  • 325 mg (65 mg elemental iron) — most common

  • 220 mg (44 mg elemental iron) — liquid and elixir forms

  • Slow-release versions (e.g., Slow Fe®) may provide gentler absorption

• How long does it take to work?

  • Energy and fatigue improvement: within 2–4 weeks

  • Hemoglobin normalization: usually 2–3 months of consistent therapy

• What are the common side effects?

  • Nausea or stomach upset

  • Constipation or diarrhea

  • Dark or black stools (harmless and expected)

  • Metallic taste in mouth

• Is Ferrous Sulfate gentle on the stomach?
  Not always — it can cause more GI irritation than ferrous gluconate or fumarate.
  Extended-release forms or taking it with food may reduce discomfort.

• Are there serious side effects?
  Rare, but possible:

  • Allergic reaction (rash, swelling, difficulty breathing)

  • Severe stomach pain or vomiting

  • Iron overload symptoms (fatigue, joint pain, liver issues)

• Who should not take Ferrous Sulfate?

  • People with iron overload disorders (hemochromatosis, hemosiderosis)

  • Those with anemia not caused by iron deficiency

  • Individuals allergic to ferrous sulfate or any product component

• Can Ferrous Sulfate be taken during pregnancy?
  Yes — it is routinely prescribed during pregnancy to prevent and treat anemia.

• Can I take it while breastfeeding?
  Yes — it is safe at recommended doses, and only small amounts pass into breast milk.

• Can children take Ferrous Sulfate?
  Yes — under strict medical supervision, as overdose can be fatal in children.
  ⚠️ Accidental ingestion is a leading cause of fatal poisoning in children under 6 years old.

• Does Ferrous Sulfate interact with other medications?
  Yes — it can interfere with absorption of:

  • Antacids and calcium supplements

  • Thyroid medication (levothyroxine)

  • Certain antibiotics (tetracyclines, fluoroquinolones)
    Take these medications at least 2–4 hours apart from Ferrous Sulfate.

• Can I drink coffee or tea while taking it?
  Avoid — tannins and caffeine reduce iron absorption.

• Does Vitamin C help absorption?
  Yes — taking Ferrous Sulfate with orange juice or Vitamin C supplements increases absorption.

• Can Ferrous Sulfate cause constipation?
  Yes — this is the most common side effect.
  Drinking more water, eating fiber, or switching to a slow-release form may help.

• Can I take Ferrous Sulfate long-term?
  Only as prescribed — long-term unnecessary use can cause iron overload.

• What should I do if I miss a dose?
  Take it as soon as you remember unless it’s close to your next dose — don’t double up.

• How should I store Ferrous Sulfate?
  Store at room temperature (20°C–25°C / 68°F–77°F), away from heat and moisture.
  Keep out of reach of children.

• Is there a generic version available?
  Yes — Ferrous Sulfate is available in multiple generic forms.

• Where can I buy Ferrous Sulfate?
  Available over the counter (OTC) and by prescription, depending on formulation and dosage.