Table 4. Barriers to Prescribing Pharmacotherapies for Substance Dependences.

Barriers	Tobacco Number (%) of Family Physicians	Alcohol Number (%) of Family Physicians	Opioid Number (%) of Family Physicians
Lack of knowledge about pharmacotherapies	28 (24)	105 (88)	97 (82)
Lack of reimbursement by government to patients for cost of pharmacotherapies	N/A	60 (50)	51 (43)
Lack of patient compliance	76 (64)	56 (47)	70 (59)
Lack of effectiveness of existing pharmacotherapies	40 (34)	29 (24)	27 (23)
Concerns about risks and side effects of existing pharmacotherapies	65 (55)	42 (35)	62 (52)
No barriers	9 (8)	0 (0)	2 (2)
Other barriers	11(9)	7 (6)	18 (21)