Table 3.

Lexical patterns to extract DDIs.

Id	Pattern
P1	DRUG MODAL? ADV? INTERACTsyn WITH WORD0..5 (OF)? DRUG
P2	DRUG MODAL? ADV? INCREASEsyn WORD0..5 (OF)? DRUG
P3	DRUG MODAL? ADV? DECREASEsyn WORD0..5 (OF)? DRUG
P4	DRUG MODAL? ADV? ALTERsyn WORD0..5 (OF)? DRUG
P5	DRUG MODAL? BE ADV? INCREASEsyn WORD0..5 (BY)? DRUG
P6	DRUG MODAL? BE ADV? DECREASEsyn WORD0..5 (BY)? DRUG
P7	DRUG MODAL? BE ADV? ALTERsyn WORD0..5 (BY)? DRUG
P8	COADMINISTRATION OF DRUG (WITH|AND|PLUS) DRUG MODAL? ADV? [INCREASEsyn|DECREASEsyn|INTERACTsyn|ALTERsyn]
P9	COADMINISTRATION OF DRUG (WITH|AND|PLUS) DRUG MODAL? BE? ADV? RESULTsyn (TO|WITH|IN) [INCREASEsyn|DECREASEsyn|INTERACTsyn|ALTERsyn]
P10	CAUTION MODAL? ADV? BE? USED WHEN DRUG WORD? (WITH|AND|PLUS) DRUG BE? ADMINISTEREDsyn CONCURRENTLY?
P11	PATIENTS TREATED (WITH)? DRUG (WITH|AND|PLUS) DRUG (CONCURRENTLY)? MODAL BE OBSERVEDsyn
P12	INTERACTION (OF|BETWEEN) DRUG (AND|WITH|PLUS) DRUG MODAL? (BE)? WORD0..3 (OBSERVEDsyn|INCREASEsyn|DECREASEsyn|ALTERsyn)