The same as all other testosterones this substance is used well in combination with bulking agents like Dianabol or Anapolon. Even stacking it with Deca Durabolin will be a very good combination. Propionate is also used well with non-aromatising agents like Masteron that stops the estrogen conversion as well as being a anabolic on its own. Masteron is also a short ester and will work well with Propionate when you have to inject it twice or three times a week. Pre contest many athletes take low doses of Propionate in conjunction with Trenbolone, Stanozolol injectable or tabs) and even Anavar. As long as the dose is kept low and the time period is kept short you will not have water retention and the androgenic effect will give you a very hard muscular, chiselled look.
Heavy consumption of the essential amino acid lysine (as indicated in the treatment of cold sores) has allegedly shown false positives in some and was cited by American shotputter C. J. Hunter as the reason for his positive test, though in 2004 he admitted to a federal grand jury that he had injected nandrolone.  A possible cause of incorrect urine test results is the presence of metabolites from other AAS, though modern urinalysis can usually determine the exact steroid used by analyzing the ratio of the two remaining nandrolone metabolites. As a result of the numerous overturned verdicts, the testing procedure was reviewed by UK Sport . On October 5, 2007, three-time Olympic gold medalist for track and field Marion Jones admitted to use of the drug, and was sentenced to six months in jail for lying to a federal grand jury in 2000. 
Injectable steroids are injected into muscle tissue, not into the veins. They are slowly released from the muscles into the rest of the body, and may be detectable for months after last use. Injectable steroids can be oil-based or water-based. Injectable anabolic steroids which are oil-based have longer half-life than water-based steroids. Both steroid types have much longer half-lives than oral anabolic steroids. And this is proving to be a drawback for injectables as they have high probability of being detected in drug screening since their clearance times tend to be longer than orals. Athletes resolve this problem by using injectable testosterone early in the cycle then switch to orals when approaching the end of the cycle and drug testing is imminent.