I've been on celexa now for about 3 weeks and about 2 days ago I've been experiencing some may joint pain as though I'm about to catch the flu but there's been no sore throat or coughing. The manufacturer's product labeling should always be consulted for a list of side effects most frequently appearing in patients during clinical studies. Taking Celexa with other drugs that make you sleepy or slow your breathing can cause dangerous side effects or death. Ask your doctor before taking a sleeping pill, narcotic pain medicine, prescription cough medicine, a muscle relaxer, or medicine for anxiety, depression, or seizures. Common Side Effects of Celexa (Citalopram Hydrobromide) Drug home drugs a-z list celexa (citalopram hydrobromide) side effects drug center dry mouth;; cold symptoms such as stuffy nose, sneezing, sore throat, cough;. Side Effects. Drug information provided by: IBM Micromedex. Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention. Celexa Side Effects As an antidepressant medication, Celexa works because it can increase the levels of serotonin in the brain that is essential for signaling between neurons. The imbalance of serotonin can cause drastic mood swings that are difficult to control, if at all. Mayo clinic, terry white chemists citalopram tablets If you do not have a dose-measuring device, ask your pharmacist for one. Celexa side effects Breath Shortness - Unnatural breathing, using a lot of effort resulting in not enough air taken in by the body. Our Celexa Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication. This is not a complete list of side effects and others may occur. In Summary. Commonly reported side effects of citalopram include: drowsiness, ejaculatory disorder, nausea, insomnia, and diaphoresis. Other side effects include. Celexa is a prescription medicine used to treat depression. It is important to talk with your healthcare provider about the risks of treating depression and also the risks of not treating it.