To the OP: primotesten sounds like it would be Primobolan... read below
Another commonly used steroid is primobolan, chemical name methanolone. It is a highly anabolic and low androgenic drug. It used to be available as an injectable in both acetate and enanthate esters, although only the enanthate ester is produced now from the company schering. Some underground companies have now produced shorter acting esters with methanolone, including acetate. It is available as an oral product as well, usually in 5mg and 25mg tabs, and they are not 17 alpha alkylated so liver toxicity is not an issue. The oral methanolone typically needs a dose of at least 100mg per day to be effective, and this can get expensive, so most people use the injectable. The concentration from the methanolone product by schering, primobolan, comes in 50mg and 100ml per ml ampoules. This steroid will not aromatize to estrogen and will not give big gains, but the gains will be very lean gains. This is one steroid that will not cause very many side effects unless the dosage is very high, and this makes it very popular among people who do not want to use more androgenic drugs. Methanolone is another steroid that is expensive comparitively, so many fakes are made. Some of the fakes are very good and it is very hard to tell them apart from the real product. It is best not to buy primobolan unless you are very sure of your source.
So as can be seen from this 1mil a week doesn't tell us much. Depending on the concentration and ester of your product you would want to be injecting at least 400mg a week. You would also want to run for longer than 6 weeks (I would say 10 weeks if you got the enanth ester which tends to be the most popular). I would also want to add testosterone at 400mg a week.