As much as it was noticed, a dosage of 50 to around 100 mg a day (which means one or maximum 2 tablet daily) is going to be just enough to be effective and in the same time, the dosage is low enough to stay away from side effects. There were studies done proving that a dosage of 150 mg of Clomid (Clomiphene) can increase the total user’s testosterone levels by 150%!
However, there are people going to doses as high or 200 mg or maybe even 300 mg a day (6 pills!) but that’s just increasing the side effects risks extremely much and there’s a high chance that the effectiveness won’t be higher. I wouldn’t recommend to get your doses higher than 150 mg a day. Usually, such a dose is lasting approximately one to about two weeks. Then next 2 weeks you use 100 mg a day and the last 2 weeks you use 50 mg a day. All in all, a full PCT is lasting anywhere between 4 to 6 weeks.
Dosage greatly depends on what exactly you are searching for, what was your steroid cycle, your personal tolerance and others. Clomid (Clomiphene Citrate) has a half life of approximately 5 to 7 days! By stopping the product, it would be in your system for quite some weeks.