San Mu Kd 6Bhaiṣajyavastu
Pāli / Sanskrit:Bhaiṣajyavastu
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EXPOSITION OF BHAIṢAJYAVASTU
The Chapter on Medicines and Medical Materials in the Vinaya Piṭaka
Background
Bhaiṣajyavastu is an important chapter belonging to the Vinaya Piṭaka in the Theravāda tradition of the Buddha Dharma. The word "bhaiṣajya" means "medicine" or "remedy," while "vastu" means "topic" or "field." This chapter records detailed rules and guidance concerning the use of medicines, the preparation of medical materials, and the care of health in the monastic community.
The historical context of Bhaiṣajyavastu is connected with the development of the Sangha community in the first centuries after the Buddha’s nirvana. As the number of monks and nuns increased considerably, practical issues such as illness and death needed to be clearly regulated. The Buddha and his disciples established principles to ensure that treating illness would not become a reason for violating the precepts, while at the same time protecting the health and integrity of monks and nuns.
Main Content
Bhaiṣajyavastu regulates in detail four basic kinds of medicine that monks and nuns are allowed to use: ghee, peanut oil, molasses, and honey. These medicines are considered the "four kinds of essence" (chatummaharajanikagilana), permitted medical materials for maintaining basic health.
This chapter details situations of illness in which exceptions from ordinary rules on eating are permitted. For example, a monk with serious illness may receive additional food outside the permitted time, or use special nourishing substances that would not ordinarily be allowed without committing an offense. However, these exceptions must not be abused; they apply only when truly necessary and under the supervision of the community.
The Vinaya Piṭaka also records specific cases concerning the death of monks, determining the cause of death, and how to treat the body. These are practical rules reflecting the Buddha Dharma’s acceptance of the reality of illness, aging, and death, three of the four aspects of suffering (dukkha).
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