Just how long can you detect drugs in blood?
Unfortunately, this cannot be determined exactly. There are only recommended levels for rough consideration. If you want to be safe, you should assume a definitely longer verifiability.
The degradation of illegal substances works differently for each human being and depends upon many factors – amongst which are body height and weight, the general constitution, recent health-status etc. Particularly the process of degradation of substances very much depends on whether the substance is only used occasionally or regularly. The table gives you but reference points, you should only refer to it with caution. Above all, whenever you ask yourself, ‚should I drive a car‘, you should always plan in longer periods of time. Only then is it guaranteed that neither other traffic participants nor your driving licence are threatened.