Clomid (Clomiphene Citrate ) is used after steroid cycle to help restore natural testosterone production.
Correct start time depends on which steroid you used.
To calculate correct start time of PCT check half life of the steroids you use. For example if you were to use just testosterone cypionate you'd have to wait 12-14 days after last injection until you start PCT.
Now back to Clomid dosage:
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Day 1 – Clomid 150mg
Day 2 - Clomid 100mg
Following 20 days – Clomid 50mg
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Onre more thing, I prefer to take tabs with food.