Xanax (alprazolam) and Prozac (fluoxetine) both treat anxiety but work differently. Xanax is a fast-acting benzodiazepine that provides quick relief for acute anxiety or panic attacks, though it can cause dependence with long-term use. Prozac, an SSRI antidepressant, takes several weeks to work but offers long-term anxiety control with fewer dependency risks. The best option depends on individual needs, symptoms, and medical history. Doctors often prescribe Prozac for chronic anxiety and Xanax for short-term relief. Always consult a healthcare professional before starting or switching medications.