Rasashastra is one of the most significant branches of Ayurvedic pharmaceutics, specialising in the preparation of herbo-mineral drugs. Pottali Kalpana stands out as a revolutionary dosage form in Ayurvedic emergency care. Characterized by its high density and solidified compact structure, this formulation ensures enhanced bioavailability, primarily due to its specialized sublingual route of administration. It is a unique formulation with respect to method of preparation, mode of administration, quick action, lower dosing, and ease of transportation. Hemagarbha Pottali is the most potent drug of choice in case of emergency, made with Shuddha parada, Shuddha gandhaka, Swarna Bhasma and Tamra Bhasma. It is traditionally revered as sarvrogahara and shows significant results in cardiovascular, hepatic and respiratory disorders. Modern relevance of Pottali Kalpana is defined by its 3P framework, viz., potency, portability and persistency. Ultimately, it is the sophisticated drug delivery system offering a rapid response alternative where conventional oral routes may be compromised. It is a pioneering dosage form of emergency care in Ayurveda. 

Introduction:

In Rasashastra, Rasakalpas are classified into four categories, viz., Kharaliya, Parpati, Kupipakwa, and Pottali Kalpana (Vagbhata, 13th Century), each having a unique place in Ayurvedic therapeutics. Pottali Kalpana is a unique drug dosage form classified under Pota bandha[1]. Pottali is a condensed, compact, solid hard drug form made from processing ingredients mentioned in classical texts (Bhatta, 2003). ‘Vistaritasya vastuno alpapibhavanam’[2] indicates the compactness properties of Pottali and its comprehensive size, which maximise potency and lower doses due to synergistic action. It is a unique formulation method in terms of its method of preparation, mode of administration, quick action, lower dose and ease of transportation.

Ayurvedic emergencies are addressed to daruna (chronic) and ashukari (fast-acting), requiring rapid interventions[3]. Emergencies can be broadly classified under surgical, mostly due to trauma/ accidents or medical emergencies due to functional impairment or external foreign body effect, such as snake bite, etc. In ayurveda health is a balance between tridoshas, agni, dhatu, and mala. Imbalance between these and impairment of srotas leads to anomalies resulting in the urge for emergency care. To tackle this, acharyas have mentioned various routes of administration of the drug, using Nasya, Basti, abhyanga, Lepa, as well as sublingual medication. Pottali kalpa are mainly formulated to be administered in the form of a sublingual drug, by passing first passed metabolism and showing high efficacy. Hemagarbha Pottali is one of the important and unique classical formulations widely used in Atyayik chikitsa (emergency care) due to its high therapeutic efficacy[4].  This article mainly aims to underline the potency of Pottali Kalpana with special reference to Hemagarbha Pottali in emergency conditions. While primary emergency management relies on modern resuscitative protocols, Pottali Kalpana may hold translational relevance as a potency-driven adjunct to support systemic resilience during critical illness and recovery.

MATERIAL AND METHOD

The information was gathered by thoroughly reviewing classical texts such as Rasa Ratna Samuchhaya, Sharangdhara Samhita, Yog Ratnakar, Bhaishajya Ratnavali, Rasa Yoga Sagara, etc. Various research articles and books were compiled and analysed.

Brief History of Pottali Kalpana

The concept of Pottali Kalpana was first mentioned in Rasa Ratnakara in the 12th century, where the formulation was prepared using Putapaka Vidhi. In13th century, Rasa Prakash Sudhakara defined the method of Gandhaka Drava Paka, particularly in the preparation of Vajra Pottali.[5] Later, Yoga Ratnakara described the use of an iron vessel for processing, indicating progressive pharmaceutical advancement[6]. The compendium Rasa Yoga Sagara systematically compiled numerous formulations under Pottali Rahasyam. Subsequent works such as Rasa Raja Sundara, Rasa Raja Siromani, and Rasa Raja Shankara were introduced, including Hamsa, Ratnagarbha, Narsimha, Vaikrantagarbha, and Muktagarbha Pottali. In later literature, Rasamritam by Yadavji Trikamji Acharya documented Hemagarbha Pottali Rasa. Hemagarbha Pottali has evolved from the 13th to the 20th  century transition through various techniques. Rasendra Sangraha[7] and Rasa Prakash Sudhakar[8] mentioned the Putapaka method and bhudhara yantra for the preparation. By the 14th century, Rasa Ratna Samucchaya and Sharangdhar Samhita introduced the Kaparda Purana method of preparation[9][10], which is also mentioned in Bhaishajya Ratnavali and Nighantu Ratnakar in the 18th and 19th century respectively[11]. In the 19th century, Siddha Bheshaja Manimala had introduced the Gandhaka drava swedana (sulphur bath) method of preparation for Hemagarbha Pottali. Modern 20th century texts like Rasayana Sara consolidate these methods as the primary mode of preparation[12].

Pharmaceutical synthesis of Hemagarbha Pottali

Hemagarbha Pottali contains Shuddha Parada, Shuddha Gandhaka, Swarna Bhasma, and Tamra Bhasma[13]. Kajjali is prepared using Parada and Gandhaka, and then Swarna Bhasma and Tamra Bhasma are added to it. A 7-day Bhawana is given to it using Kumari Swaras, after which it is shaped into pugakara or shankhukara and dried in the shade. After complete drying, a 4-folded silk cloth is taken, and Gandhaka churna is spread over it. Pottali is kept and tied with a thread. This Pottali is then dipped into Gandhaka drava (molten sulphur), with indirect heat given by the Gandhaka drava paka method. The temperature is maintained at not more than 200°C.[14] Gandhaka churna is added whenever needed. After swangshita (self-cooling), Pottali is opened by removing the silk cloth, and excessive Gandhaka is scraped to obtain a shiny, lustrous, hard solid Pottali kalpa[15].  

Mode of administration

Pottali is usually administered by rubbing over the stone for the desired number of rotations with the juices of ginger, stalks of piper betel, honey or ghee, either sub-lingually or orally[16]. The number of rotations is to be decided by the physician according to the nature, severity of the disease and age of the patient.

Indication of Hemagarbha Pottali

 Table 1: Indication of Hemagarbha Pottali by different Acharya

Pharmacokinetic study

Hemagarbha Pottali is administered by rubbing Pottali over the stone with adraka swarasa, performing into fine, homogenous suspension of nanoparticles, enhancing quick absorption. Sublingual administration leads to bypassing first-pass metabolism increases the bioavailability of the drug. Gingerols from ginger juice used as anupana act as a bioenhancer [17]and facilitate drug entry into the superior vena cava via sublingual veins, bypassing hepatic metabolism. 

Pharmacodynamic study

Parada(Mercury) shows Rasayana, Yogvahi, Agni dipaka, Jantughna properties, whereas Gandhaka(Sulphur) shows Dipana, pachana, vishahara properties. Kajjali, prepared from these, increases the efficacy and potency of the medicine[18]. It subsides the Hriday Ashrita vatadushti, thereby strengthening the cardiac muscle. Tamra Bhasma exhibits lekhana Karshana sthaulyahar, medohar properties[19], and thus can be used in hypercholesterolemia and dyslipidaemia. It acts as a metabolic catalyst, improving oxygen utilisation and clearing atherosclerotic micro- channels. Copper deficiencies lead to hypercholesterolemia, which results in CVD. Copper plays a crucial role in lipid metabolism[20]. Swarna is stated as ‘dushtagrahanyadinuta’, which means it can be used in chronic gastritis, ulcerative colitis, etc. It is also stated as ‘yakshonmadaprashamanam’, meaning all types of rajyakshma, unmada[21]. This shows its action on the respiratory system as well as the nervous system. Swarna, being a rasayana dravya, reduces dhatukshaya and increases metabolism.

Hemagarbha Pottali as in emergency care

Hemagarbha Pottali is an ancient precursor to the modern drug delivery system. It is traditionally called ‘Sarvaroga hara’[22] and specifically targets the pranavaha srotas and rasavaha srotas, acting on the respiratory and circulatory systems, respectively. The sublingual or oral route of administration of Hemagarbha Pottali can be justified for emergency management[23]. This ensures rapid bioavailability, making it a translational adjunct in managing chronic disorders. The sublingual route facilitates easy drug delivery, particularly in unconscious patients. The high concentration of gingerols in adraka swarasa causes local vasodilation, increasing the mucosal permeability of Hemagarbha Pottali.

Hemagarbha Pottali is effective in the vegavastha and avegavastha of post-COVID-19 Lung fibrosis in 125 mg per day muhurmuhu doses as an adjuvant[24]. It has a beneficial effect on symptoms such as breathlessness, cough, fever, and chronic illness. It reduces signs, such as an increased respiratory rate and crepitus. It can also be used as an alternative to modern antibiotics, as it is effective against multidrug-resistant bacterial strains[25]

Discussion:

Hemagarbha Pottali is a highly potent revolutionary drug of Ayurvedic emergency care. It represents an ancient pinnacle of nanomedicine. The nano-structural form of Hemagarbha Pottali allows for potential crossing of blood brain barrier (BBB), leading to high therapeutic efficacy in emergency cases such as coma, syncope. Its efficacy can be decoded through three primary physiological vectors, such as the sublingual mucosal shunt, Sarvarogahara, specifically cardiopulmonary resuscitation and cellular catalyst optimising oxygen utilisation at the tissue level. In case of emergency, Hemagarbha Pottali act on the cardiovascular system, supporting heart rate and blood pressure, the respiratory system by stimulating the drive to breathe in gasping stages and the nervous system by restoring consciousness by improving cerebral blood flow. The lipophilic nature of Sulphur enables it to achieve a targeted rapid release mechanism through the Gandhaka drava paka method.

Though Pottali Kalpana is a concise and potent medicament in the Indian system of medicines, the commercial availability of this type of medicines are negligible. Few Pottali kalpa are available in the market. Despite being the most convenient dosage form, only a few vaidyas are practising Pottali kalpa as the choice of drug. Despite low commercial availability, Hemagarbha Pottali remains a ‘golden milestone’ in ayurvedic critical care. It shows 3P benefits as potency, portability, and persistency. The nanoparticle size structure of Pottali, with a high surface area to volume ratio, ensures therapeutic effect at minimal doses. It's solid, impervious to moisture and oxidation, nature require no specialised storage, making it ideal for first aid. The akshaya nature of Pottali ensures the infinite shelf life, remaining active for decades.

Conclusion:

Hemagarbha Pottali represents a sophisticated Ayurvedic drug delivery system designed for the rapid onset of therapeutic action in life-threatening emergencies. Its wide range of therapeutics, including cardiovascular, respiratory, hepatic diseases, and cancer, makes it the drug of choice in emergencies. Its unique method of preparation creates a lipophilic nanoparticle-sized matrix suitable for emergency sublingual absorption, even in unconscious patients. Despite higher efficacy, potency, and persistence, future research in clinical trials, physicochemical profiling, and toxicological safety is needed to facilitate its integration into emergency care.

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