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Table 1 Frequency of prescription of anti-malarial drugs at a private hospital in Ibadan, south-west Nigeria, over a twenty-year period.

From: Potential contribution of prescription practices to the emergence and spread of chloroquine resistance in south-west Nigeria: caution in the use of artemisinin combination therapy

YEAR

CQ

SP

AQ

QN

PY

PG

HAL

ART

1983

N = 303

94.8%

2.3%

2.8%

0

0.3%

0

0

0

1985

N = 306

97.4%

0.7%

1.0%

0

0.3%

0

0

0

1987

N = 304

95.5%

1.9%

0.6%

0

1.0%

1.0%

0

0

1989

N = 320

67.1%

4.1%

24.7%

0.3%

0.9%

1.3%

0

0

1992

N = 322

80.1%

10.2%

0.6%

0.9%

0.3%

1.2%

5.9%

0

1995

N = 314

77.4%

10.2%

4.1%

1.9%

0.6%

1.9%

3.8%

0

1997

N = 321

73.7%

13.4%

2.8%

2.2%

0

1.9%

3.1%

1.6%

  1. CQ = Chloroquine; SP = Sulphadoxine/Pyrimethamine; AQ = Amodiaquine; QN = Quinine; PY = Pyrimethamine; PG = Proguanil; HAL = Halofantrine; ART = Artemether