Nagabala: Benefits, Evidence & Safety

TL;DR

Nagabala (Sida veronicaefolia) is a small Ayurvedic herb of the mallow family, traditionally valued as a strengthening (balya) and rejuvenating rasayana for debility, wasting and vata disorders. Rat studies report diuretic, antioxidant and anti-kidney-stone effects, and cell-free assays show antioxidant activity: but no human trials exist, so clinical benefit is unproven.

What it is

Nagabala is the whole plant of Sida veronicaefolia Lam. (family Malvaceae), a much-branched perennial herb (Ahalia Ayurveda Medical College drug monograph). One naming caution: Ayurvedic literature is not fully consistent here: a peer-reviewed review of the genus identifies Sida cordata (syn. S. humilis) as the plant called Nagbala/Bhumibala in some sources, so commercial and classical references to "Nagabala" may not all mean the same species (J Med Pharm Allied Sci 2021).

Traditional use

Classical Ayurvedic pharmacology describes Nagabala as sweet and astringent in taste (madhura, kashaya rasa), heavy and unctuous in quality (guru, snigdha guna), cooling in potency (sheeta veerya) with a sweet post-digestive effect: actions summarized as vata-pitta pacifying, strengthening (balya) and aphrodisiac (vrishya) (Ahalia Ayurveda Medical College). Traditional indications include debility (dourbalya), vata disorders (vatavyadhi), fever and wasting (karshya), and it is an ingredient of classical formulations such as Baladya ghrita and Nagabala taila (same monograph). These are traditional uses, not clinical proof.

What modern research says

Published research on Sida veronicaefolia is limited to animal and laboratory studies. There are no human clinical trials.

Diuretic and antioxidant effects (animal study)

In female Wistar rats, aqueous extracts of the stems and leaves significantly increased urinary excretion and urinary electrolyte levels, with a dose-dependent pattern. The same study found antioxidant activity in DPPH and FRAP assays (Yemele et al., Int J Herbal Medicine 2022). This is a single animal study, not evidence of diuretic benefit in people.

Kidney stones (animal study)

An ethanolic leaf extract (500 mg/kg for 14 days) showed antiurolithiatic activity in rats with ethylene glycol–ammonium chloride-induced kidney stones, assessed by kidney histopathology and biochemical markers (Kamble & Purane, Res J Pharmacol Pharmacodyn 2025). This supports further research, not a claim that the herb treats kidney stones in humans.

Antioxidant activity (in vitro)

Hexane, chloroform, hydroalcoholic and aqueous extracts of the whole plant were tested in DPPH, hydrogen-peroxide scavenging and reducing-power assays. The hydroalcoholic extract showed the strongest effect (20.9% DPPH inhibition, 23.4% H2O2 scavenging) in a concentration-dependent manner, attributed to flavonoids, terpenoids and phenolics (IJPSDR). In-vitro antioxidant activity does not translate to health effects in the body.

What the evidence does not support (yet)

The traditional rasayana claims, improved strength, vitality, stamina and nervous-system support, have not been tested in any human study and remain unproven.

Safety & contraindications

There are no published human safety studies of Sida veronicaefolia, so its safety profile in people is essentially unknown. Safety data is limited: talk to a clinician before use, especially if you are pregnant or breastfeeding (no data exist for either), take diuretics or blood-pressure medicines (given the animal diuretic findings), or have kidney disease. Do not use it to self-treat kidney stones or urinary problems without medical evaluation.

FAQs

What is nagabala?

Nagabala is the Ayurvedic name for the whole plant of Sida veronicaefolia, a small mallow-family herb traditionally used as a strengthening and rejuvenating (balya, rasayana) remedy (Ahalia Ayurveda Medical College).

Is nagabala the same as bala?

No, though they are related. Bala is usually Sida cordifolia, while Nagabala is Sida veronicaefolia: different species in the same genus, and some sources apply the name Nagabala to Sida cordata instead, so the identity can vary (J Med Pharm Allied Sci 2021).

What is nagabala traditionally used for?

Classical indications include general debility, wasting, vata disorders and fever, with strengthening and aphrodisiac actions; it appears in formulations like Baladya ghrita and Nagabala taila (Ahalia Ayurveda Medical College). These are traditional uses, not proven effects.

Can nagabala dissolve kidney stones?

Not proven. One rat study found an ethanolic leaf extract reduced experimentally induced kidney stones, but animal results do not establish any effect in humans: do not self-treat stones with it (Kamble & Purane 2025).

Is nagabala a proven diuretic?

Only in rats. An aqueous stem-and-leaf extract increased urine output and electrolyte excretion in female Wistar rats; there are no human data on diuretic effect or safety (Yemele et al. 2022).

Is nagabala safe in pregnancy?

Unknown. There are no human safety studies at all, and no pregnancy-specific data, so it should be avoided in pregnancy and breastfeeding unless a clinician advises otherwise.

Sources

Disclaimer

This article is for educational purposes only and is not medical advice. Herbal products can interact with medications and are not suitable for everyone. Talk to a qualified healthcare practitioner before use — especially if you are pregnant, breastfeeding, managing a medical condition, or taking prescription medicines.