Ambien is an effective sleeping pill prescribed for treating insomnia; if you have trouble sleeping, the medicine helps you sleep faster to have a sufficient night's rest. Many people buy Ambien online because of its effects on the user, and it works on the imbalanced brain chemicals of people with insomnia. The medicine has proven to be effective with the most negligible side effects. It is amongst the first-choice medication. It is available as the generic version known as Zolpidem, which is less costly than the brand version.