Lehyam (Avaleha)

Narasimha Rasayanam Benefits, Uses & Side Effects

Narasimha Rasayanam is a medicated butter  used in  ayurvedic medicine for the treatment of physical weakness and degenerative diseases. It acts as whole body tonic and improves immunity and overall strength. It is also useful in Panchakarma Therapy (a detoxification and therapeutic procedure of ayurvedic science).

Narasimha Rasayanam Ingredients

Narasimha Rasayanam is prepared with the following ingredients.

  • Acacia catechu (Katha, Khair, Gayatri)
  • Dalbergia sissoo (Shisham, Shimshapa)
  • Embelia ribes (False Black Pepper, Vidanga, Vaividang)
  • Pterocarpus marsupium (Vijayasar, Asana)
  • Plumbago zeylanica (Cheeta, Chitrak)
  • Terminalia chebula (Hareetki)
  • Terminalia bellirica (Bibitaki)
  • Semecarpus anacardium (Bhilawa, Bhallatak) – Purified fruits
  • Water for preparing decoction of above herbs
  • Cow’s Milk
  • Elcipta alba (Bhringraj) – juice or decoction
  • Triphala decoction
  • Butter

Medicinal Properties

Narasimha Rasayanam has following healing properties.

  1. Muscle relaxant
  2. Antioxidant
  3. Adaptogenic
  4. General tonic

Narasimha Rasayanam Indications

Narasimha Rasayanam is helpful in following health conditions.


  • General debility (but if has strong digestion powder)
  • Physical weakness
  • Muscular weakness or to increase muscular strength
  • For Weight Gain

Muscle, Bones & Joints

  • Muscle spasm
  • Low backache
  • Osteoarthritis

Narasimha Rasayanam Benefits and Uses

The main benefit of Narasimha Rasayanam is to provide strength and improve immune system. It is general tonic, which improves overall health. It is beneficial for skin and improves skin complexion. In ayurveda, it is also used as rejuvenative remedy. It is also helpful to improve hair growth and preventing premature graying of hair and hair loss.

General debility & Physical weakness

Narasimha Rasayanam is good health tonic, which helps in debility and physical weakness. It improves the strength of muscles, bones and joints. It is also beneficial in old age, when a person experience fatigue, body aches and weakness in muscles.

Narasimha Rasayanam contains fat content due to which it becomes heavy in digestion, so people with weak digestive system may require other remedies for improving digestion such as Trikatu (black pepper, long pepper and ginger), cinnamon, etc.

Weight Gain

As per ingredients present in narasimha rasayana, it can improve digestion and metabolism, so it may increase your appetite. It also helps in proper assimilation of food and increases bioavailability of nutrients. It increases supply of nutrients to the cells and tissues in the body, which helps in a proper growth of all tissues including muscles.

Narasimha Rasayanam works better when you also suffer with weak digestive system, difficulty in digesting food and experience fullness of abdomen after a small meal. In this case, you should also start taking it with smaller dosage (less than 1 tsp. a day), so you can easily digest this remedy too. You can slowly increase the dosage over a week or more and get benefits in gaining weight smoothly.

Some patient may also require Ashwagandha (Withania somnifera) to increase body weight along with narasimha rasayana. It will be more beneficial if you take it with Ashwagandha Ksheer Pak as given under dosage heading of this article.

Low backache & Osteoarthritis

According to ayurveda, pain occurs due to excess VATA humor in the body. Narasimha Rasayanam is a best remedy for reducing excess VATA and pacifying aggravated VATA humor. Therefore, it is effective in low backache, all types of joint pains except gout and rheumatoid arthritis.

In osteoarthritis, it may stimulate the formation of synovial fluid in the joints. However, the mechanism of action of Narasimha Rasayanam in osteoarthritis is yet unknown. According to ayurveda, it works on similar pain and VATA relation phenomenon. It pacifies the VATA and improves joint movements and flexibility.

Dosage of Narasimha Rasayanam

The dosage of Narasimha Rasayanam varies according to the purpose of the use. Here are some tips regarding it.

  • People with weak digestive system should take it in a half tsp. once a day and slowing increase the dosage to 1 tsp. twice a day.
  • People with good digestive can start from 5 ml a twice a day.
  • In Panchakarma therapy, you have to increase the dosage of Narasimha Rasayanam on daily basis as recommended by the Panchakarma therapist.
  • The safest therapeutic dosage of Narasimha Rasayanam is 2.5 ml to 10 ml twice a day.


  • People with weak digestive system should take it with warm water.
  • For rejuvenation benefits, you can take it with milk.
  • If you are willing to gain weight, then start taking it with warm water and if you can digest easily then start taking it with Ashwagandha Ksheer Pak (milk processed with Ashwagandha powder).

How to make Ashwagandha Ksheer Pak

  • Take 1 tsp. Ashwagandha powder, 100 ml water and 100 ml milk.
  • Now, mix water and milk and add Ashwagandha powder.
  • Boil the mixture and simmer it until the milk part remains (about half or 100 ml remains).
  • Now, separate the liquid part and discards all residues.
  • The liquid remained after this process is called Ashwagandha Ksheer Pak.

How to Take Narasimha Rasayanam with Ashwagandha Ksheer Pak

You can eat Narasimha Rasayanam as per dosage and then drink Ashwagandha Ksheer Pak.

Narasimha Rasayanam Side Effects

Narasimha Rasayanam is POSSIBLY SAFE & WELL TOLERATED in most people. However, it is heavy in digestion, so it may cause loss of appetite in some rare cases. The following side effects may occur.

  • Loss of appetite (rare)
  • Bloating (rare)
  • Heaviness in the abdomen (occasionally)
  • Nausea and vomiting occurs due to its unpleasant taste (common)

Pregnancy & Breastfeeding

Narasimha Rasayanam is heavy in digestion and may cause indigestion. Pregnant women may also have nausea and vomiting after taking Narasimha Rasayanam because of its unpleasant taste. Therefore, we consider it POSSIBLY UNSAFE in pregnancy.

There is no information available regarding the safety profile in breastfeeding.


You should not use Narasimha Rasayanam in following diseases.

  • Indigestion
  • Acidity or gastritis
  • Diarrhea
  • Nausea and vomiting
  • GERD
  • Congestive heart failure
  • High cholesterol levels
  • High blood pressure
  • Diabetes

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  1. I am 20 years old my weight is 51 kg. I want gain weight then how to use these narasimha rasayanam. Please tell me what the process is.

    1. How does Narasimha Rasayanam work in both Weight Loss & Weight Gain?

      Actually, Narasimha Rasayanam does not increase weight by its direct influence. It increases weight indirectly by increasing metabolism and appetite. However, this effect does not appear in all people taking Narasimha Rasayanam. We have also seen opposite influence. It increases metabolism also burns fat by increase fat metabolism. We have observed that it may increase a slight weight when taken with milk. Secondly, we also observed that it alone does not work to gain weight in many cases. We have to give it with Ashwagandha powder or other weight promoting herbs.

      It may also reduce weight when it is taken with warm water because it increases fat burning by rectifying the metabolism. There will be false increase in appetite, which can be reduced taking fruits, salads and raw vegetables. After a few days (around a week), you can observe your appetite becomes normal and as usual as it before.

  2. Hi Doctor, I’m using Narasimha Rasayanam since 1.5 months for Hair fall treatment (Hairs are becoming thin and loosing density). Could you please tell me how much time it will take to show effect and how long should I take this?

  3. Hi Dr.
    I am in 30th; I already have some white hair. If I use this, can I prevent hair whitening? Also I want to know how to use this for hair whitening and no need to get weight too.

    1. How to Use Narasimha Rasayanam for Premature Graying of Hair

      For premature graying of hair, Narasimha Rasayanam can be beneficial. For quick benefits, Amla (Indian Gooseberry) Powder (1 gram) mixed with equal amount of sugar twice daily is also helpful along with Narasimha Rasayanam. Taking Narasimha Rasayanam with water will not promote weight gain.

  4. I’m 24 yrs old. My weight is 50 kg. I’m very thin and slim. Can you please help me increase my body size and gain some weight? I’m 175 cm height. I heard about narasimha rasayanam from my friend. How I need to take it to increase weight faster. I tried many medicines to increase weight, nothing happens.

    1. How to Take Narasimha Rasayanam to Gain Weight
      For gaining weight, one tsp. of Narasimha Rasayanam should be taken with warm milk twice daily.

      If Narasimha Rasayanam is taken with Ashwagandha Ksheer Pak (milk boiled and processed in Ashwagandha powder), then the beneficial effects to gain weight are increased at greater extent.

      1. How is Ashwagandha Ksheer Pak taken? Need to mix with milk and narasimha rasayana? please tell the procedure.

  5. I am 28 yrs old facing severe hair fall. Hair became very thin. Please suggest me some remedies.

    1. Narasimha Rasayana contains potent digestive stimulant like Chitrak and Bhilawa. These ingredients also increase gastric juice secretion, which is likely to worsen the condition of hyperacidity and GERD. Therefore, we consider it contraindicated in gastritis, hyperacidity, heartburn, ulcer and GERD.

  6. Respected sir,
    I found a case study that shows Narasimha Rasayanam induces steatohepatitis. Can you please enlighten me is this true?

    1. Narasimha Rasayanam is not likely to cause steatohepatitis or liver injury when taken under the supervision of an ayurvedic physician and prescribed as per Dosha Analysis.

      It contains Semecarpus Anacardium, which has a potent therapeutic action and it exerts a protective action against liver damage. The study concluded it is hepatoprotective and prevents liver damage induced by Paracetamol. There are many research studies available concluding hepatoprotective action of Semecarpus Anacardium and other ingredients of Narasimha Rasayana. (1, 2)

      The case presented in the document published in “Reviewed Journal in Oncology, Gastroenterology, and Hepatology” is about a single case who consumed Narasimha Rasayanam for 2 years regularly.

      Unfortunately, 2 years prior reports were not provided and might not be available, which could state a person had no steatohepatitis/liver disease before consuming Narasimha Rasayanam. The document lacks evidence that can strongly prove that it can cause any liver disease. A single case cannot be conclusive for stating Narasimha Rasayanam has side effects.

      Secondly, epidemiological studies suggest 9 to 36.9% people in different parts of the world suffer from non-alcoholic fatty liver disease. (3)

      In this case, a person consumed Narasimha Rasayanam for 2 years, which is not suggestible under any circumstance. It is also possible he had not taken it under professional supervision. Narasimha Rasayanam is a medicine, not a supplement, so it should be taken under medical supervision.

  7. Respected sir,
    Lots of thanks for your abrupt reply
    It’s truly enlightening and i want to know can a healthy person take narasimha rasayana for long period as an ideal rejuvenating medicine? If yes, then what would b the ideal dosage & ideal period?

  8. Sir, I’m 22 yrs old. I want increase my facial hair. How should I use Narasimha Rasayana?
    Thanks in advance!

  9. Sir.i’m 22 yrs old.I used narasimha ramayanam a month.now my weight is much more.my height is 154 cm.the weight was 52 on that day.its now 58.what can I do to reduce my weight.pls help

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