Formula-pattern is a pattern differentiation and treatment system constructed to study the correspondent and multilateral relations between formula and pattern

and study the medicinal and dosage of formula to treat common diseases and miscellaneous diseases. In formula-pattern system

formula is a means of pattern differentiation and treatment and pattern is a basis for medication. The fixability of formula-pattern in classical formulae is fundamental

and the variability of formula-pattern in classical formulae is the ultimate purpose of treatment. Formula-pattern in classical formulae can only be grasped by paying attention to its fixability and variability. Dosage of formula-pattern in classical formulae can only be used to guide clinical treatment of exogenous diseases and miscellaneous diseases by thoroughly researching the formula-pattern theory from the perspective of medicinal and symptom.