Keep in mind that using enanthate this way will cause a significant build up of testosterone in the bloodstream that will not cease to increase until four or five weeks of injections. This is due to the fact that taking a four hundred milligram injection, and another four days later, still has at least 200mg working from the previous dose. The third injection then adds another four hundred and the first is still not entirely used up. You may realistically have over a gram or so in the bloodstream before you know it. Just be careful, and keep this in mind when figuring out your dosages.
Far more than the other testosterone esters, for the possible exception of Sustanon, users of testosterone propionate will often complain of injection site irratation and swelling 2 . Some individuals find that the reaction that they experience with the ester is so bad in fact that they will have to cease administration of the compound. As well, due to the frequent injections of the compound and the possibility of injection site irritation, it is advisible that users rotate injection sites as frequently as possible so that no complications arise.