What is Bṛhatī?

Bṛhatī is the root of Solanum indicum, a thorny shrub. It is also called Indian nightshade, and it belongs to the nightshade family.

In Ayurveda it is used as a single drug. That means one plant on its own, not a mixture. It is given mainly for coughs, wheezing, weak appetite and slow digestion.

It is best known as one of the ten roots of Dashamula. Dashamula is a classical Ayurvedic root group used in many ready-made tonics and decoctions. So most people meet Bṛhatī inside a blend, not on its own.

Here is the honest verdict up front. Bṛhatī has deep, well-recorded standing in Ayurvedic texts. But human trial evidence for the single plant is more or less absent.

Long use in tradition is not proof that a thing works. On the rest of this page, treat Bṛhatī as a traditional remedy with an unproven modern record.

How does Bṛhatī work?

No one has shown in people how Bṛhatī works. What follows is proposed, not proven.

Ayurvedic theory calls it warming and drying. It is described as kapha-vata hara. That means it is thought to thin and move mucus, and to ease spasm.

This is why classical texts pair it with breathing complaints and poor digestion.

Lab and animal work on Solanum indicum extracts reports three signals. These point to less swelling, less coughing and lower blood sugar.

Those are test-tube and rodent findings. They suggest where to look next. They do not tell you what a dose will do in a human body.

What forms does Bṛhatī come in?

You will usually find Bṛhatī in one of these forms:

Dried root pieces, boiled into a kwatha (a water decoction).

Root powder (churna), often taken with warm water or honey.

Part of Dashamula products, such as Dashamularishta, Dashamula kwatha and Chyawanprash-type tonics.

Now and then, a standardised extract capsule from Western sellers. The marker used for the standard is rarely stated.

The root is the part used in classical medicine. In some regions the ripe fruit is eaten as a bitter vegetable. The unripe fruit is not food.

Where it comes from:

Bṛhatī appears in the oldest Ayurvedic texts that survive. These include the Charaka Samhita and the Sushruta Samhita. They date to roughly the early centuries CE.

It is one of the Laghu Panchamula, the five lesser roots. That places it inside Dashamula, one of the most used root groups in the whole system.

Classical uses centre on cough, breathlessness, fever and loss of appetite.

It is also used in Siddha and in folk medicine across South and Southeast Asia. The Ayurvedic record is by far the most detailed.

What does Bṛhatī help with?

• Cough and chest congestion: This is the main classical use. Ayurvedic texts give Bṛhatī decoction for a wet, rattling cough. It is used when mucus is hard to clear. Modern support is thin. A few rodent studies report less coughing from Solanum indicum extracts. No published human trial tests the plant alone for cough.
• Wheezing and breathlessness: It is traditionally used for shwasa (trouble breathing). It is usually given inside a compound formula, not on its own. There is no human trial for asthma (a long-term illness that narrows the airways) or any other lung disease. It is not a substitute for an inhaler. Never swap a prescribed reliever inhaler for it.
• Poor appetite and slow digestion: Classical texts call it deepana-pachana. That means it raises appetite and kindles digestion. It is a standard choice when someone feels heavy and off their food. The evidence here is traditional only. No controlled human study has measured appetite or digestion after taking Bṛhatī.
• Fever with body ache (traditional use): Ayurveda gives Dashamula products that contain Bṛhatī for fever with aching and heaviness. This is a traditional use with no human trial behind it. A fever above 39°C needs a doctor, not a herb. So does a fever that lasts more than three days.
• Joint and low-back discomfort (as part of Dashamula): Bṛhatī is one part of Dashamula formulas used for vata-type aches. These include low-back pain and pain after childbirth. The little clinical work that exists tested whole Dashamula blends. It did not test Bṛhatī alone. So nothing can be credited to this single plant.

Which foods are rich in Bṛhatī?

1. Ripe Solanum indicum fruit: eaten as a bitter cooked vegetable in parts of India, Africa and Southeast Asia, always cooked and never raw

Practical Tips:

Bṛhatī is a medicinal plant, not a dietary source of anything you need; the unripe fruit should not be eaten at all.

What are the side effects of Bṛhatī?

• Nausea or stomach discomfort
• Burning feeling in the stomach or throat
• Loose stools
• Dry mouth
• Headache
• Vomiting and diarrhoea at high doses, from the plant's glycoalkaloids
• Rarely, allergic skin rash

Good to know:

At the small traditional doses, the usual complaints are mild and stomach-related, and they settle when you stop.

The real concern is dose. Bṛhatī belongs to the nightshade family, and its glycoalkaloids (natural plant chemicals related to the toxin in green potatoes) can cause vomiting, diarrhoea, confusion and a slow or irregular heartbeat if a lot is taken.

Unripe fruit and large amounts of raw plant material are the main sources of poisoning reports. Stick to prepared root products and labelled doses, and stop at any sign of confusion, drowsiness or palpitations (a racing or pounding heartbeat).

How much Bṛhatī should you take?

• Recommended daily: Modern research has not set a dose. The numbers below come from classical Ayurveda. They are offered for context only. Dried root powder: about 1 to 3 g a day, usually split into two doses. Root decoction (kwatha): made from about 3 to 6 g of dried root. This gives roughly 50 to 100 ml of liquid a day. Dashamula products: follow the label. Bṛhatī is only one of ten ingredients. Do not add single-herb Bṛhatī on top of a Dashamula formula. Do this only if an Ayurvedic practitioner guides you.
• Best time of day: Classically it is taken twice a day, in the morning and the early evening. For appetite and digestion, take it shortly before meals. For cough, it is often taken after meals.
• With or without food: Take it with warm water, honey or a little food. This helps reduce stomach irritation. On an empty stomach, it is more likely to cause nausea (feeling sick).
• Time to effect: There is no reliable timeline. In traditional use, cough and digestion effects are expected within a few days. For joints, or for use after birth, it is continued for two to four weeks.
• How long to take it: Traditional use means short courses, from days to a few weeks. They aim at one complaint. They are not meant for daily use over months. Check how you are doing after two weeks. If the cough, appetite or breathing has not improved, stop and see a doctor. Do not raise the dose. Long-term daily use has never been studied for safety in people.