The quadrants (padachatushutaya) proposed for treatment (prerequisites for treatment) is physician (bhishak/vaidya), drugs and medicaments (dravya), paramedical staff (paricharaka) and patient (rogi), each one of them to have four distinct qualities.

DOCTOR — MEDICINES — NURSE — PATIENT

Four qualities Physician
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1. An expert
2. Academically qualified
3. Experienced
4. Hygienic

Four qualities of Drugs
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1. Capable for use in various pharmaceutical modes and dosage forms
2. Broad spectrum
3. Readily available
4. Applicable to patient

Four qualities of Nurse
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1. Loving
2. Hygienic
3. Skilled
4. Intelligent

Four qualities of Patient
1. Rich enough to afford the treatments
2. Obedient to physician
3. Communicative
4. Courageous

Co ordination of all the limbs is inevitable cure of elements. Each of the four limbs possesses four specific qualities. Among the four factors, doctor is the utmost importance since he is the person who navigates the remaining three factors.