• The use of vitamin-A is necessary to keep the epithelium of the body healthy. This vitamin is essential for the production of rhodopsin in the pigment of the eyes. This vitamin works as a stimulant for eyesight, bone development, and physical growth.
  • What happens with too much vitamin A: Getting too much vitamin A (usually from supplements or certain medications) can cause severe body aches, including blurred vision, and nausea. Apart from this, there is also a risk of coma and death due to an excess of vitamin A in some cases.
Vitamin-A: Uses,Dosage,Side Effects,Precautions & More.
Vitamin-A: Uses,Dosage,Side Effects,Precautions & More.

What is a Vitamin-A?

  • Vitamin A is very essential for the eyes. It is either obtained from external sources (food, medicines, etc.) or gets synthesized automatically in the body.
  • Vitamin A is also very important for the growth of skin and epithelium in addition to proper vision.
  • Vitamin A is mainly found in liver, fish, eggs, milk, butter, green vegetables, carrots, radishes, coriander, mango, papaya, tomato, pumpkin, barbie, etc. Its deficiency causes diseases like Night Blindness, Dryness of the Eyes (Xerophthalmia), Bitot spots, Corneal ulcers, Drying and hardening of the skin, etc.
  • Sometimes the patient’s vision becomes very weak due to its deficiency and if the treatment is not given, the patient also becomes blind.

Use of Vitamin A.

  • As and in the form of anticancer vitamins,
  • Deficiency in the infancy of Vitamin A in infancy,
  • Hepatobiliary and diseases of the liver and c.
  • Fat loss in diarrhea (steatorrhea),
  • Acne,
  • Après,
  • (Psoriasis), the skin becomes scaly and thick like a fish (Ichthyosis).

How to take Vitamin A in dosage?

  • General requirement – 750 mg per day.
  • Pregnancy, lactation -1200mg per day.
  • In case of Vitamin A deficiency 2 Lac i.u. by mouth or 1 Lac i.u. injection i.m. By, twice a year i.e. every 6 months.
  • Night blindness-30,000 i.u. Every day, for a week.
  • Measles – (in children) 2 Lac i.u. Every day, for two days.
  • Corneal damage up to 1 5 days.


  • Tablets, capsules, syrups, injections, and oils.

When to avoid Vitamin- A?

  • Hypervitaminosis- A,
  • Hypersensitivity.

Precautions while taking Vitamin- A.

  • Use the drug with caution in children.

Side-effects of Vitamin- A.

  • Nausea,
  • Vamana,
  • Abdominal pain,
  • Headache,
  • to sensitivity.

Substitutes of Vitamin-A.

  • VITAMIN-A – Abbot
  • ROVOGON – Abbot

Frequently Asked Questions about Vitamin -A.

Q-1: What is the importance of Vitamin A in our body?

A-1: Vitamin A is a fat-soluble vitamin that is found naturally in many foods. There are many forms of vitamin A that the body needs.

  • Retina: This is a substance that is essential for the formation of rhodopsin and vision.
  • Retinol: Retinol along with its derivatives is essential for the maintenance of skin and mucosal cells.
  • Retinoic acid: This is the main hormonal metabolite and is used for the growth and differentiation of epithelial cells.
  • Vitamin A is important.
  • Vision, regulation of genes, immune system support, red blood cell production.

Q-2: What are the risks of taking too much vitamin A?

A-2: Too much vitamin A is called toxicity. This can happen.

  • birth defects,
  • Liver abnormalities,
  • disorders of the central nervous system,
  • Decreased bone mineral density, which increases the risk of osteoporosis.
  • Vitamin A can cause toxicity.
  • Vomiting,
  • dizzy,
  • Headache,
  • Blurred vision,
  • fatigue,
  • weakness,
  • Convulsions,
  • Irritability,
  • muscle pain,
  • Bone and joint pain,
  • Weight loss,
  • hair fall,
  • liver dysfunction,
  • swelling of the tongue,
  • Coma,
  • even death.

Q-3: How much vitamin A can you eat in a day?

A-3: The maximum amount of vitamin A that can be consumed. is given below. This does not include the amount prescribed by the doctor for the medical condition.

  • Life Stage Maximum Limit (IU)
  • Birth to 1 in the year 2000
  • 1 to 3 years 2000
  • 4 to 8 years 3000
  • 9 to 13 years 5667
  • 14 to 18 years 9333
  • 19 10000. at over
  • IU = International Unit.

Q-4: Which foods are recommended to get Vitamin A in the right proportion?

A-4: Vitamin A can be found naturally in many foods. and can also be added to certain foods such as milk and cereals. Eating a variety of foods can provide the needed dose of vitamin A like:

  • Green leafy vegetables,
  • Carrots, sweet potatoes pumpkins, and other orange vegetables that contain a pigment called beta-carotene.
  • Eggs,
  • Fruits such as mango, cantaloupe, and apricots,
  • Certain types of fish, such as salmon,
  • milk products,
  • cod liver oil,

Q-5: What are the visible symptoms of Vitamin A deficiency?

A-5: Night blindness or low vision at night or in low light

The outline of the images cannot be distinguished due to low light

Night blindness during the daytime until severe.

Q-6: What are the normal values of the tests suggested for Vitamin A deficiency/excess?

A-6: Vitamin A Blood Test:

  • Deficiency: 50 mcg/dL. fewer
  • Extra: 200 mcg/dL. more than
  • Serum Retinol Level: Reduction: 28μg/dL. fewer.


In conclusion, Vitamin A is a crucial nutrient that plays a vital role in maintaining healthy vision, immune function, and skin health. It is important to follow recommended dosage guidelines to avoid potential side effects such as nausea and dizziness. Taking necessary precautions, such as consulting with a healthcare provider before starting a new supplement regimen, is essential for overall well-being. Remember, a balanced diet with adequate Vitamin A-rich foods is key to promoting optimal health.

Disclaimer – The above information is to the best of our research and knowledge. But, you are advised to consult a physician before consuming the medicine.