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.
Until the opening on 2 June 1996, of the first phase of the Belgian high speed line  , Eurostar trains were routed via the Belgian railway line 94 . The Eurostar routes still use the line as a diversion if engineering works are taking place on HSL1, depending where it is. The 06:13 from London St Pancras to Brussels still uses the line as a diversion to bypass the peak time disruptions on HSL1 due to the extra TGV services from Brussels for the commuters. After 2 June 1996, some Eurostars to Brussels were routed via the first phase of the Belgian High Speed line and the Belgian railway line 78 via Mons . Although this line is still as a diversion if HSL1 is doing engineering, also depending where the maintiance is taking place.  Journey times between London and Brussels were improved when an 88-kilometre (55 mi) Belgian high-speed line, HSL 1 , opened on 14 December 1997.   It links with LGV Nord on the border with France, allowing Eurostar trains heading to Brussels to make the transition between the two without having to reduce speed. A further four-minute improvement for London–Brussels trains was achieved in December 2006 with the opening of the 435-metre (1,427 ft) Brussels South Viaduct .  Linking the international platforms of Brussels-South railway station with the high-speed line, the viaduct separates Eurostar (and Thalys) from local services.