buy ambien online Overnight Delivery payapl is a prescription medication used to treat insomnia. It is available in two forms: pill form and liquid form. Liquid ambien can be taken with or without food. Pills can be swallowed, chewed, or injected. Ambien is usually effective within 30 minutes and lasts for up to 12 hours. It is important to note that ambien should not be used if you are pregnant or breastfeeding because it can cause birth defects.