Vipāka means the post-digestive effect of food or medicine.
It is the transformed state of rasa (taste) after the action of digestive fire (agni).
It is a crucial factor in pharmacodynamics, especially in Ayurvedic dravyaguna and chikitsa.
Role of Vipāka:
Determines long-term effect of a substance
Influences dosha, dhatu, mala
Plays a part in karma (action) of dravya
Śloka – A.H. Sutrasthāna 1.15:
"विपाकस्त्वन्त्यगं ज्ञानं तत्र रसाद्विभाव्यते।
रसास्तु तदनु क्रियाः कालात् कर्म च सिद्ध्यति॥"
"vipākastvantyagaṁ jñānaṁ tatra rasādvibhāvyate |
rasāstu tadanu kriyāḥ kālāt karma ca siddhyati ||"
There are three primary types of Vipāka based on post-digestive taste and guna-karma:
Derived from: Madhura (sweet) and Amla (sour) rasa
Post-digestive taste: Sweet
Predominant Mahabhutas: Prithvi + Jala
Effects:
Increases Kapha
Decreases Vāta and Pitta
Promotes tissue nourishment (dhatu poshana)
Improves ojas and rejuvenates
Enhances strength, fertility, and longevity
Śloka – A.H. Sutrasthāna 1.15:
"मधुरो बृंहणः स्निग्धः पित्तवातापहः सुखः।
शुक्रः स्तन्यकरो ग्राही शीतलः श्लेष्मलो हितः॥"
"madhuro bṛṁhaṇaḥ snigdhaḥ pittavātāpahaḥ sukhaḥ |
śukraḥ stanyakaro grāhī śītalaḥ śleṣmalo hitaḥ ||"
Clinical Significance:
Good for emaciated, weak, vata-pitta disorders
Useful in rejuvenation (rasayana) therapy
Derived from: Lavana rasa
Post-digestive taste: Sour
Predominant Mahabhutas: Agni + Jala
Effects:
Increases Pitta and Kapha
Decreases Vāta
Stimulates agni, promotes digestion
Causes mild tissue irritation, promotes srotas opening
Śloka – A.H. Sutrasthāna 1.15:
"अम्लो दीपनो लघुश्च पित्तकृच्छ्लेष्मनाशनः।
रोचनो बोधनः स्वेद्यो दाहकृत्क्लेदनो गुरुः॥"
"amlo dīpano laghuśca pittakṛcchleṣmanāśanaḥ |
rocano bodhanaḥ svedyo dāhakṛtkledano guruḥ ||"
Clinical Significance:
Helps in appetite stimulation and agni deepana
Used cautiously in pitta-vitiated conditions
Derived from: Katu (pungent), Tikta (bitter), and Kashaya (astringent) rasa
Post-digestive taste: Pungent
Predominant Mahabhutas: Agni + Vayu
Effects:
Increases Vāta
Decreases Kapha
Causes dryness, lightness, cleansing
Helps in fat reduction, detoxification, and clearing channels
Śloka – A.H. Sutrasthāna 1.15:
"कटुश्चेदनकृद्रूक्षः स्रोतःशुद्धिकरो लघुः।
वह्निदीपनकृच्चोषी कृमिघ्नः कफवातजित्॥"
"kaṭuścedanakṛdrūkṣaḥ srotaḥśuddhikaro laghuḥ |
vahnidīpanakṛccoṣī krimighnaḥ kaphavātajit ||"
Clinical Significance:
Used in kapha-vata disorders, obesity, skin conditions
Must be used with care in vata-predominant individuals
Determines long-term action of dravyas or foods on:
Dosha (increase/decrease)
Dhatu (nourishment or depletion)
Mala (elimination)
Crucial in:
Dravyaguna Vijnana
Rasa-vipaka-karma analysis
Drug formulation
Misjudging vipāka can lead to opposite or delayed therapeutic results