a good pct should last at least 3 weeks
below are some examples for a moderate cycle, none are set in stone
adjust as needed for lighter / heavier cycles and personal preference
clomid only:
300mg day 1, 100mg 10 days, 50mg 10 days
nolva only:
100mg day 1, 60mg 10 days, 40mg 10 days
clomid and nolva both:
300mg clomid + 40mg nolva day 1, 50mg clomid + 20mg nolva 20 days