Essential medicines are intended to be available within the context of functioning health systems at all times in adequate amounts, in the appropriate dosage forms, with assured quality and adequate information, and at a price the individual and the community can afford."
Dabere na WHO, ngwaahịa ndị a kwesịrị ịdị "oge niile, na oke ọnụọgụ, n'ụdị usoro ịsụ ọgwụ kwesịrị ekwesị, na ezigbo njirimara na ozi zuru oke, na ọnụahịa onye na obodo nwere ike ịkwụ."