Comparison of Single and Multiple-dose Methotrexate Therapy for Ectopic Pregnancy

In the single dose regimen, 50 mg/m2 intramuscular methotrexate was given on day one and hCG level was measured on days four and seven. If the hCG level did not decrease by 15% between day four and seven, a second dose of methotrexate was injected on day seven, hCG level was measured weekly until a level of 15 mlU/ml or less was achieved

In the multiple dose regimen, 1 mg/kg/day intramuscular methotrexate was given on days one, three, five and seven and 0.1 mg/kg/day intramuscular Citrovoram factor was administered on days two, four, six and eight until serum hCG level decreased 15% in 48 hours or four doses of methotrexate was given weekly until serum hCG level of 15 mlU/ml or less was obtained