Introduction
Walk into any Ayurvedic pharmacy and you will encounter two types of medicines that stand out. The first is a thick, sweet, jam-like preparation stored in glass jars — this is Avaleha, a medicated confection. The second is a dark, aromatic liquid stored in sealed bottles — this is Arishta or Asava, a fermented preparation. Together, these two dosage forms represent some of the most sophisticated pharmaceutical preparations in the Ayurvedic pharmacopoeia.
Avaleha Kalpana (medicated confections) and Arishta-Asava Kalpana (fermented preparations) are two of the most important secondary dosage forms in Ayurveda. They are called “secondary” because they are prepared from primary herbal preparations (decoctions, powders, and juices) and combine them with additional ingredients to create more palatable, stable, and effective medicines.
Think of it like cooking. A primary preparation is like a basic ingredient — flour, sugar, or spice. A secondary preparation is like a finished dish — bread, candy, or sauce. The primary ingredients are transformed through specific processes into something greater than the sum of their parts.
For the student, understanding these dosage forms is essential because they are the most commonly prescribed formulations in clinical practice. For the patient, knowing how your medicines are made helps you understand why they taste the way they do and how to store them properly. For the practitioner, mastery of these dosage forms is essential for effective prescribing.
Avaleha: The Art of Medicated Confections
Avaleha is a semi-solid preparation made by cooking a herbal decoction or fresh juice with sugar, jaggery, or honey to a specific consistency, and then adding powdered herbs and spices. The consistency is similar to jam or thick honey. Think of it as a medicinal jam — sweet, palatable, and nourishing.
The preparation method is precise. First, a decoction (Kwatha) of the specified herbs is prepared according to the standard method. The decoction is combined with jaggery or sugar in the specified ratio and cooked over a moderate fire until the mixture reaches the desired consistency — typically one-thread or two-thread consistency, meaning that when a drop is placed between the thumb and finger and the fingers are separated, it forms one or two threads.
The powdered herbal ingredients are added when the mixture has cooled slightly but is still warm enough to incorporate them evenly. The aromatic ingredients — camphor, cardamom, cinnamon — are added last, when the mixture has cooled further, to preserve their volatile oils. The finished Avaleha is stored in glass or ceramic jars and has a standard shelf life of twelve to sixteen months.
Chyawanprash is the most famous example of Avaleha. Its primary ingredient is Amalaki (Emblica officinalis), along with over forty other herbs, processed with ghee, sesame oil, honey, jaggery, and spices. Chyawanprash is a Rasayana (rejuvenative) that nourishes all seven Dhatus, strengthens the immune system, improves digestion, and promotes longevity. The dose is 6-12 grams daily, taken on an empty stomach or with warm milk.
Dashamoola Avaleha processes the ten roots (Dashamoola) with jaggery and spices. It is indicated for Vata disorders, respiratory conditions, and as a general nourishing tonic. Bilwadi Avaleha, made from Aegle marmelos (Bilva) and other herbs, is indicated for digestive disorders, especially diarrhea and malabsorption.
The general dose of Avaleha is 6 to 12 grams (approximately one teaspoon) once or twice daily. It is typically taken on an empty stomach in the morning, or with warm milk or water. Avalehas are usually taken for prolonged periods — one to six months or longer — for their Rasayana and chronic disease management effects.
Arishta and Asava: The Power of Fermentation
Arishta and Asava are self-generated fermented preparations that use the power of natural fermentation to extract, preserve, and enhance the therapeutic properties of herbs. Arishta is made from a decoction (Kwatha) of herbs, while Asava is made from an infusion (Phanta) or fresh juice.
The fermentation process involves several steps. First, the base liquid is prepared — a decoction for Arishta, an infusion or juice for Asava. Sugar or jaggery is added as the fermentation substrate. Then, fermentation initiators — traditionally Dhataki flowers (Woodfordia fruticosa) or Bilva flowers — are added. These flowers contain natural yeasts that start the fermentation process. The vessel is sealed with clay and kept in a warm, dark place for one to six months.
During fermentation, the natural yeasts convert the sugar into alcohol, which extracts the alcohol-soluble constituents of the herbs. The alcohol also acts as a preservative, giving Arishtas and Asavas an almost indefinite shelf life when properly stored. Think of fermentation as a natural extraction and preservation system — it pulls out the medicinal compounds and keeps them stable for years.
The key difference between Arishta and Asava is the base liquid. Arishtas use a decoction (herbs boiled in water), while Asavas use an infusion or fresh juice (herbs steeped in cold or hot water without boiling). This difference affects which constituents are extracted and the therapeutic properties of the final product.
The completion of fermentation is assessed by several tests. The flame test — the fermented liquid should burn with a clear blue flame when ignited. The appearance test — the liquid should be clear, not turbid. The sound test — the liquid should make a specific sound when shaken.
Classical Arishta and Asava Formulations
Ashwagandharishta contains Ashwagandha (Withania somnifera) and over thirty other herbs. It is indicated for Vata disorders, anxiety, insomnia, nervous exhaustion, and as a general nervine tonic. The dose is 12-24 ml with equal water after meals.
Arjunarishta contains Terminalia arjuna bark and other cardiotonic herbs. It is indicated for heart conditions, angina, hypertension, and for strengthening the heart muscle. Punarnavasava contains Boerhavia diffusa (Punarnava) and is indicated for edema, kidney disorders, and liver disorders.
Chandanasava contains sandalwood and cooling herbs, indicated for Pitta disorders, urinary tract infections, and burning sensations. Kanakasava contains Datura and other herbs for chronic respiratory conditions and asthma.
The standard dose of Arishtas and Asavas is 12 to 24 ml, taken with an equal quantity of water, once or twice daily after meals. They are generally not given in acute conditions, during pregnancy, or to children under twelve years of age.
Storage and Preservation
Proper storage of Avalehas and Arishtas is essential for maintaining their potency. Avalehas should be stored in airtight containers in a cool, dry place away from direct sunlight. They have a shelf life of about 2 years when properly stored. If the Avaleha becomes dry, hard, or develops an off-odor, it should be discarded.
Arishtas and Asavas should be stored in glass bottles, not metal containers, as the alcohol in the fermentation can react with certain metals. They should be kept in a cool, dark place. Due to the natural alcohol content, they have an almost indefinite shelf life when properly sealed. However, once opened, they should be consumed within 6 months for maximum potency.
For the patient, the practical advice is to follow the storage instructions on the medicine label. Do not store Avalehas in the refrigerator — the moisture can cause mold growth. Do not store Arishtas in plastic containers — the alcohol can leach chemicals from the plastic. Store all Ayurvedic medicines in their original containers with tight-fitting lids.
Patient Counseling
When prescribing Avalehas and Arishtas, the practitioner should explain the correct method of administration. Avalehas should be licked slowly, not swallowed quickly — the therapeutic action occurs through oral mucosal absorption in addition to digestive absorption. Taking Avaleha with warm water or milk enhances its therapeutic effects.
For Arishtas and Asavas, the patient should be instructed to measure the dose carefully using the provided measuring cap. Mixing with equal water is not just for taste — it also dilutes the alcohol content, making it safer for long-term use. The patient should be warned that Arishtas contain natural alcohol and should not be taken before driving.
Contraindications
Avalehas should be used with caution in patients with diabetes (due to their sugar content), obesity (due to their heavy, nourishing qualities), and Kapha disorders. Patients with weak digestion should not take heavy Avalehas on an empty stomach, as this can lead to Ama formation. The practitioner should select Avalehas appropriate to the patient’s dosha and digestive capacity.
Arishtas and Asavas are contraindicated in patients with liver disease, alcohol dependency, pregnancy, and children under twelve years of age. The alcohol content, though natural, can aggravate Pitta conditions and should be used cautiously in patients with hyperacidity or gastritis. In such cases, the Arishta can be boiled for a few minutes to evaporate some of the alcohol before administration.
For the patient, the practical advice is to inform your practitioner about any alcohol sensitivity or liver conditions before taking Arishtas. Modern research has validated the safety of traditional Arishta formulations, showing that the natural fermentation process produces minimal alcohol content that is generally safe for therapeutic use.
Avaleha vs. Modern Dosage Forms
Understanding Avaleha helps appreciate its advantages over modern dosage forms. Unlike tablets and capsules, Avalehas are taken slowly — the patient licks the paste, allowing gradual absorption through the oral mucosa. This slow absorption provides sustained therapeutic action and better patient compliance, especially for chronic conditions.
Arishtas and Asavas, with their natural fermentation, offer advantages over synthetic alcohol-based tinctures. The fermentation process extracts a wider range of active compounds than simple alcohol extraction. The natural preservative action of fermentation eliminates the need for artificial preservatives. And the enhanced bioavailability achieved through fermentation means lower doses are needed for therapeutic effect.
For the patient, the practical advice is to follow your practitioner’s instructions on how to take these medicines. The method of administration matters — licking Avalehas slowly, mixing Arishtas with equal water, and taking medicines at the recommended time all contribute to optimal therapeutic outcomes.
Conclusion
Avaleha and Arishta-Asava Kalpana represent two of the most sophisticated dosage forms in Ayurveda. Avalehas combine nourishment with medicine, providing a pleasant and effective form of therapy for chronic conditions and rejuvenation. Arishtas and Asavas use the power of fermentation to extract and preserve the active principles of herbs, producing stable, self-preserving medicines with enhanced bioavailability. Both forms are essential in the modern practice of Ayurvedic medicine and represent the pharmaceutical genius of the ancient Ayurvedic physicians.