Table 1 The 48 cardiovascular drugs categorized by type of patent protection and country

Acebutolol

Acetylsalicylic acid (aspirin)

X

X

X

X

16

16

Amiloride

Amlodipine

X

X

X

X

X

63

1

4

7

4

Atenolol

Atorvastatin

X

X

X

X

X

X

X

X

50

4

53

39

39

Benazepril

X

Bisoprolol

Bumetanide

Candesartan

X

X

X

X

X

X

1

4

10

9

Carvedilol

X

X

X

X

X

X

22

29

13

Chlorothiazide

Chlorthalidone

X

X

31

Clopidogrel

X

X

X

X

11

44

44

Enalapril

3

Eplerenone

X

X

X

X

X

X

25

3

25

25

Eprosartan

X

X

X

X

X

X

X

X

7

6

37

42

37

Felodipine

Fluvastatin

X

X

36

Fosinopril

2

Furosemide

Hydrochlorothiazide

X

X

60

Indapamide

X

X

37

Irbesartan

X

X

X

X

23

8

23

Lisinopril

3

Losartan

X

X

2

Lovastatin

X

X

X

13

1

12

12

Metolazone

Metoprolol

Nadolol

Nebivolol

X

X

1

31

4

Nifedipine

Nimodipine

Olmesartan

X

X

X

X

X

X

X

29

8

24

8

8

Perindopril

X

X

X

X

X

X

X

18

37

18

Pitavastatin

X

X

X

X

X

X

X

13

2

17

17

10

Pravastatin

X

X

1

8

Propranolol

X

X

X

X

10

10

Quinapril

X

X

X

1

3

3

Ramipril

X

X

X

X

34

34

35

Rosuvastatin

X

X

X

X

X

6

50

33

Simvastatin

X

X

19

Spironolactone

Telmisartan

X

X

X

X

X

X

X

X

X

49

6

35

17

36

Torasemide

Trandolapril

X

X

X

X

3

2

Triamterene

Valsartan

X

X

X

X

X

X

X

42

7

36

36

Total

18

5

20

18

10

14

2

18

14

9

523

120

536

338

200

All countries

Grand totals

555

127

574

370

219