Day 1-10: 100mg/day
Day 11-21: 50mg/day
Take the whole dose each morning (half-life is long enough).
Don't bother with 300mg the first day as some people suggest - the sides are too much for too little benefit.
Also run nolva with it at 40mg/day for 2 weeks and then 20mg/day for 2 weeks.
Then wait another 4 weeks and get your levels checked. If they're good, you're ready to cycle again
(You may also need HCG for this PCT especially if you were using a high dose of prop).