In a pilot clinical trial on 52 patients, 75 mu g Quinagolide given once pe
r day was administered for the treatment of cyclical mastodynia. Linear ana
logue charts were used for the assessment of response. Decrease in breast p
ain, heaviness, tenderness and serum prolactin level on the one hand, and i
ncreases in the serum estradiol and progesterone levels on the other hand w
ere noted after 3 and 6 months administration, and were statistically signi
ficant. Statistical analysis was performed by Paired t-test or Wilcoxon tes
t, One-Way Anova Repeated Measures and Wilcoxon test and analysis of Covari
ance model. The beneficial effect of Quinagolide also lasted after the cess
ation of treatment. Fourteen patients dropped out during treatment. Adverse
effects like nausea, low blood pressure, dizziness and constipation were r
arely reported.