The Difference Between Single- and Double-Malt Scotch. To understand the difference between a single-malt scotch and a double-malt scotch, some whiskey terms must be explained. However, the simple explanation is that a single-malt scotch comes from only one distillery and often refers to scotch that comes from one batch.
Ecstasy is a water soluble drug. Which meens it can stay in your system through urine and blood for anywhere up to 2-4 days. Depending on the water level in your system. Howev â¦ er through a hair strand test ecstasy is still shown up to 6 months. Cocaine and MDMA both stay in the system for about 3 to 7 days.   If you are referring to the effects, you would start to feel the cocaine shortly after ingesting the pill, and as you are coming down from the cocaine, you would likely begin to feel the MDMA. 1 person found this useful. Answered.
Heroin doesnât stay in the body long.The half life for heroin is only 3-8 minutes and it clears most systems in the body within a couple of days, even with heavy use.owever, heroin drug detection times can depend on a number of factors â how the drug was taken, how often a person takes the drug, and the personâs body time and metabolism. We review drug testing for heroin here, and invite your question about heroin in the system at the end.