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Table 2 Concomitant medications used during the study

From: Betaine anhydrous in homocystinuria: results from the RoCH registry

Concomitant medications

CBS deficiency, %

MTHFR deficiency, %

Cbl metabolism defects, %

Vit B6 responders

Vit B6 non-responders

Carnitine

11.1

12.24

33.33

80

Oral Vit B12

88.69

61.22

57.14

35.56

SC Vit B12

4.76

11.11

IM Vit B12

24.49

38.10

93.33

Folinic acid

12.24

76.19

71.11

Vit B6

100

91.84

33.33

26.67

Folic acid

100

83.67

38.10

46.67

L-methionine

4.08

28.57

31.11

Other forms of betaine

22.45

23.81

22.22

Methionine restricted diet

87.76

28.57

35.56

MTHF

19.05

Riboflavine

28.57

  1. Cbl cobalamin, IM intramuscular, MTHF methylenetetrahydrofolate, MTHFR 5,10 methylenetetrahydrofolate reductase; SC, subcutaneous, Vit vitamin