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. Side Effects. See also Warning and Precautions sections. Nausea, dry mouth, loss of appetite, tiredness, drowsiness, sweating, blurred vision, and yawning may occur. If you're thinking of trying celexa / citalopram just how likely are the haunted stories you've heard? The real truth will set you free. Learn the 8 most common side effects you might experience. Suicidality and Antidepressant Drugs. Antidepressants increased the risk compared to placebo of suicidal thinking and behavior (suicidality) in children, adolescents, and young adults in short-term studies of major depressive disorder (MDD) and other psychiatric disorders. Zoloft (sertraline) and Celexa (citalopram hydrobromide) are antidepressants called selective serotonin reuptake inhibitors (SSRIs) prescribed to treat depression. Zoloft is also used to treat obsessive-compulsive disorder (OCD), panic disorder, posttraumatic stress disorder (PTSD), social anxiety disorder, and premenstrual dysphoric disorder. Antidepressant side effects can range from mild discomfort to severe impacts on your daily life. We’ll go over and compare the common side effects associated with different types of antidepressants. Taking citalopram 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. Coping With Side Effects of Depression Treatment. Find out about the side effects of antidepressants and depression treatment. Learn what you can do about them. Antidepressant Warnings: There have been 151 warnings from 11 countries (Australia, Canada, Denmark, Germany, Ireland, Italy, Japan, New Zealand, Russia, United Kingdom and United States) and the European Union warning that antidepressants cause harmful side effects. Patients can try lowering the dose or switch to Wellbutrin, which does not generally cause sexual side effects. 6 Rarely, elderly patients who take citalopram may develop tics, muscle spasms, dyskinesia, parkinsonism, and akathisia, which may occur with anxiety.