Hi, Yes, sleeplessness and leg pain can be withdrawal symptoms of Celexa (citalopram), a medication used to treat depression and anxiety. Celexa belongs to a class of medications called selective serotonin reuptake inhibitors (SSRIs), which work by increasing the levels of serotonin in the brain. When someone stops taking an SSRI suddenly or reduces their dose too quickly, it can cause withdrawal symptoms. Common symptoms of SSRI withdrawal include insomnia, irritability, anxiety, dizziness, and flu-like symptoms. In some cases, people may also experience sensations in their legs, such as tingling, numbness, or pain. It is important to note that withdrawal symptoms can vary from person to person and can depend on factors such as the dosage of the medication and how long it was taken. If you are experiencing withdrawal symptoms after stopping Celexa, it is important to talk to your healthcare provider. They may be able to recommend a slower tapering schedule or other treatments to help manage your symptoms. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Priyanka, General & Family Physician