Table-IV.

Common pairs of drug interaction. N= 369

No	Serious	n=16	Significant	n=244	Minor	n=109
1	Diclofenac+ Methotrexate	4	Omeprazole+ Losartan	47*	Gabapentin+ Acetamiphen	22**
2	Celecoxib+ Methotrexate	2	Losartan+ Diclofenac	19***	Omeprazole+ Tizanidine	14
3	Fenofibrate+ Omerprazole	2	Diclofenac+ Glimepride	15	Hydrochlorthiazide+ Metformin	11

Most common*,

Second common**,

Third common***