Drugs that put you to sleep before they cause your death are, understandably, those most preferred.
However, the time spent asleep before death can vary greatly. The longer the time, the greater the likelihood of being disturbed (and resuscitated). To reduce the risk of this, drugs that bring about sleep, loss of consciousness, and death shortly after are the priority.
This is one clear advantage of the barbiturate,
Nembutal, is that sleep will occur within minutes of consumption of the drug and alcohol. Death usually follows within the hour. Other drugs discussed in this book, however, have a much longer ‘window period’. For example, the window period for the propoxyphene/oxazepam combination may be a matter of hours. Because of this, carefuly planning may be needed to reduce the chance of discovery during the time between the drugs have been taken and death has been realised.
The possibility of unwanted intervention is why it is wise to take lethal drugs in the evening. If a deeply-unconscious person is ever found before death, this can present a significant