Figure 1From: Nimodipine, a calcium channel blocker, delays the spontaneous LH surge in women with regular menstrual cycles: a prospective pilot studyLH surge of 8 female patients (mean ± SD). The LH surge in the nimodipine cycle was significantly delayed in comparison to observatory cycle 1 (mean 15.5 ± 3.4 days vs 14.0 ± 2.8 days, p = 0.033). **Comparisons of LH surge day between cycles were performed using paired t-tests.Back to article page