Table 2. Use of medications and occurrences of adverse events by study participants (n=67). Ribeirão Preto, SP, Brasil, 2016.

Parameter	N (%)*
Previously used drugs metabolized by CYP2C9	66 (98.5%)
Ibuprofen	32 (17.2%)
Acetylsalicylic Acid	54 (29%)
Diclofenac	55 (29.6%)
Celecoxib	12 (6.5%)
Rosuvastatin	12 (6.5%)
Prasugrel	1 (0.5%)
Phenytoin	1 (0.5%)
Irbesartan	0 (0%)
Losartan	17 (9.1%)
Warfarin	2 (1.1%)
Number of medications already used
= 1	10 (15.2%)
2 - 4	50 (75.8%)
>4	6 (9%)
Occurrence of adverse events	19 (27.5%)
Nausea	1 (5.3%)
Headache	1 (5.3%)
Vertigo	1 (5.3%)
Decreased urinary output	1 (5.3%)
Pain in the legs	1 (5.3%)
Paresthesia	2 (10.4%)
Stomach pain	8 (42.1%)
Allergic reactions	4 (21%)
Medications related to the occurrence of adverse events
Aspirin	9 (42.8%)
Diclofenac	8 (38.1%)
Losartan	2 (9.5%)
Rosuvastatin	1 (4.8%)
Celecoxib	1 (4.8%)

^*n (%) = Values in number of observations or percentage frequency