is ambien a prescription medicine is zolpidem a prescription drug

Is ambien a prescription medicine, is zolpidem a prescription drug is ambien a prescription medicine ==> is ambien a prescription medicine is ambien a prescription medicine is zolpidem a prescription drug is ambien a prescription drug or over the counter is ambien still prescribed is ambien a prescription drug what is ambien called in uk is ambien prescription only is ambien over the counter or prescription