fentanyl history of prescription

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
fentanyl history of prescription	0.8	0.7	7333	52	32
fentanyl	1.7	0.3	5255	65	8
history	1.09	1	1974	27	7
of	1.78	0.9	9217	17	2
prescription	0.51	1	7695	26	12

Keyword	CPC	PCC	Volume	Score
fentanyl history of prescription	1.4	0.1	4426	82
fentanyl history of discovery	0.25	0.9	5010	46
the origins of fentanyl	1.32	0.3	7734	11
fentanyl history of synthesis	1.98	0.6	2272	22
when was fentanyl first developed	0.2	0.3	6705	61
fentanyl history of regulation	1.47	0.6	2707	88
when was fentanyl introduced to the us	1.32	0.7	6655	97
fentanyl definition and history	0.58	0.5	1680	39
fentanyl history of effects	0.65	1	3074	100
when did fentanyl become widespread	0.3	0.8	4408	91
when was fentanyl first discovered	0.68	0.4	1687	86
who was fentanyl created by	0.86	0.3	1432	100
how was fentanyl invented	0.72	0.3	9765	4
when did hospitals start using fentanyl	1.32	0.7	1737	73
how long has fentanyl been around for	1.42	0.2	4236	14
what is fentanyl the drug origin	0.67	1	7453	15
where did fentanyl originated	0.37	0.8	1076	78
why was fentanyl originally created	1.47	0.6	9545	5
how long has fentanyl existed	1.8	0.1	431	34
what was fentanyl first used for	1.22	0.5	7881	67
when did fda approve fentanyl	0.1	0.8	902	37