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Table 6 Most frequent reasons for using the NGS mention for 18 therapeutic classes

From: Factors influencing the use of the “not for generic substitution” mention for prescriptions in primary care: a survey with general practitioners

Drug

Most frequent reasons for using the NGSa mention

Patient request

Benign adverse drug reaction

Severe adverse drug reaction

Biological or clinical inequivalence to the brand-name drug

Class with increased risk (inter-individual variations, interactions, narrow therapeutic range …)

Compliance with specialist prescription

Antiplatelet agents - n, %

64(27.6)

11 (4.7)

8 (3.4)

28 (12.1)

41 (17.7)

80 (34.5)

Thyroid hormones - n, %

29 (11.3)

7 (2.7)

3 (1.2)

105 (41.0)

73 (28.5)

39 (15.2)

Antiepileptic drugs - n, %

41 (16.7)

2 (0.8)

3 (1.2)

55 (22.4)

91 (37.0)

54 (22.0)

Antiacids - n, %

112 (55.2)

31 (15.3)

3 (1.5)

47 (23.2)

6 (3.0)

4 (2.0)

Antispasmodic drugs - n, %

106 (76.8)

14 (10.1)

1 (0.7)

14 (10.1)

2 (1.4)

1 (0.7)

Step I analgesics - n, %

107 (77.0)

14 (10.1)

1 (0.7)

9 (6.5)

6 (4.3)

2 (1.4)

Step II/III analgesics - n, %

104 (60.8)

30 (17.5)

3 (1.8)

24 (14.0)

7 (4.1)

3 (1.8)

Anti-inflammatory drugs - n, %

89 (56.0)

34 (21.4)

8 (5.0)

17 (10.7)

10 (6.3)

1 (0.6)

Antibiotics - n, %

86 (50.3)

45 (26.3)

6 (3.5)

24 (14.0)

8 (4.7)

1 (0.6)

Antidepressants - n, %

110 (54.2)

28 (13.8)

2 (1.0)

33 (16.3)

17 (8.4)

13 (6.4)

Hypnotics/Benzodiazepines - n, %

143 (72.6)

15 (7.6)

1 (0.5)

23 (11.7)

10 (5.1)

5 (2.5)

Neuroleptics - n, %

94 (51.6)

20 (11.0)

2 (1.1)

18 (9.9)

26 (14.3)

22 (12.1)

Statins - n, %

105 (55.6)

42 (22.2)

8 (4.2)

16 (8.5)

10 (5.3)

8 (4.2)

Oral anti-diabetic drugs - n, %

83 (43.2)

55 (28.6)

2 (1.0)

30 (15.6)

14 (7.3)

8 (4.2)

Diuretics - n, %

102 (59.6)

22 (12.9)

2 (1.2)

20 (11.7)

14 (8.2)

11 (6.4)

Beta blockers - n, %

94 (49.7)

25 (13.2)

3 (1.6)

29 (15.3)

19 (10.1)

19 (10.1)

Angiotensin-converting-enzyme inhibitors/ Angiotensin II receptor blockers - n, %

100 (51.0)

35 (17.9)

1 (0.5)

25 (12.8)

13 (6.6)

22 (11.2)

Oral contraceptives - n, %

110 (68.3)

19 (11.8)

2 (1.2)

16 (9.9)

12 (7.5)

2 (1.2)

  1. aNGS Not for Generic Substitution