Learn the common signs of mental illness in adults and adolescents.
Learn more about common mental health conditions that affect millions
Find Your Local NAMI
Call the NAMI Helpline at
Or in a crisis, text "NAMI" to 741741
Brand name: Celexa®
Generic name: citalopram (sye TAL oh pram)
All FDA black box warnings are at the end of this fact sheet. Please review before taking this medication.
Citalopram is an antidepressant medication that works in the brain. It is approved for the treatment of major depressive disorder (MDD).
Symptoms of depression include:
Citalopram may also be helpful when prescribed “off-label” for obsessive-compulsive disorder, panic disorder, social phobia (also known as social anxiety disorder), posttraumatic stress disorder, eating disorders, premenstrual dysphoric disorder, and alcohol dependence. “Off-label” means that it hasn’t been approved by the Food and Drug Administration for this condition. Your mental health provider should justify his or her thinking in recommending an “off-label” treatment. They should be clear about the limits of the research around that medication and if there are any other options.
Do not stop taking citalopram even when you feel better. With input from you, your health care provider will assess how long you will need to take the medicine.
Missing doses of citalopram may increase your risk for relapse in your symptoms.
Stopping citalopram abruptly may result in one or more of the following withdrawal symptoms: irritability, nausea, feeling dizzy, vomiting, nightmares, headache, and/or paresthesias (prickling, tingling sensation on the skin).
Depression is also a part of bipolar illness. People with bipolar disorder who take antidepressants may be at risk for "switching" from depression into mania. Symptoms of mania include "high" or irritable mood, very high self-esteem, decreased need for sleep, pressure to keep talking, racing thoughts, being easily distracted, frequently involved in activities with a large risk for bad consequences (for example, excessive buying sprees).
Medical attention should be sought if serotonin syndrome is suspected. Please refer to serious side effects for signs/symptoms.
If you are planning on becoming pregnant, notify your healthcare provider to best manage your medications. People living with MDD who wish to become pregnant face important decisions. Untreated MDD has risks to the fetus, as well as the mother. It is important to discuss the risks and benefits of treatment with your doctor and caregivers. For women who take antidepressant medications during weeks 13 through the end of their pregnancy (second and third trimesters), there is a risk that the baby can be born before it is fully developed (before 37 weeks).
For mothers who have taken SSRIs during their pregnancy, there appears to be less than a 1% chance of infants developing persistent pulmonary hypertension. This is a potentially fatal condition that is associated with use of the antidepressant in the second half of pregnancy. However, women who discontinued antidepressant therapy were five times more likely to have a depression relapse than those who continued their antidepressant. If you are pregnant, please discuss the risks and benefits of antidepressant use with your healthcare provider.
Caution is advised with breastfeeding since citalopram does pass into breast milk.
Citalopram is usually taken one time per day with or without food.
Typically patients begin at a low dose of medicine and the dose is increased slowly over several weeks.
The dose usually ranges from 20 mg to 40 mg once daily. For patients older than 60 years, the maximum recommended dose is 20 mg once daily. Only your healthcare provider can determine the correct dose for you.
The liquid should be measured with a dosing spoon or oral syringe which you can get from your pharmacy.
Consider using a calendar, pillbox, alarm clock, or cell phone alert to help you remember to take your medication. You may also ask a family member or a friend to remind you or check in with you to be sure you are taking your medication.
If you miss a dose of citalopram, take it as soon as you remember, unless it is closer to the time of your next dose. Discuss this with your healthcare provider. Do not double your next dose or take more than what is prescribed.
Avoid drinking alcohol or using illegal drugs while you are taking antidepressant medications. They may decrease the benefits (e.g., worsen your condition) and increase adverse effects (e.g., sedation) of the medication.
If an overdose occurs, call your doctor or 911. You may need urgent medical care. You may also contact the poison control center at 1-800-222-1222.
A specific treatment to reverse the effects of citalopram does not exist.
Common side effects
Headache, nausea, diarrhea, dry mouth, increased sweating, feeling nervous, restless, fatigued, sleepy or having trouble sleeping (insomnia)
These will often improve over the first week or two as you continue to take the medication.
Sexual side effects, such as problems with orgasm or ejaculatory delay often do not diminish over time.
Rare/serious side effects
Increased bleeding (e.g., gums may bleed more easily), low sodium blood levels (symptoms of low sodium levels may include headache, weakness, difficulty concentrating and remembering), teeth grinding, angle closure glaucoma (symptoms of angle closure glaucoma may include eye pain, changes in vision, swelling or redness in or around eye), seizure
Serotonin syndrome (symptoms may include shivering, diarrhea, confusion, severe muscle tightness, fever, seizures, and death)
Risk of abnormal heart rhythms with citalopram
August 2011: Citalopram at doses greater than 40 mg per day could potentially cause a dangerous abnormality in the electrical activity of the heart. Citalopram use is discouraged in patients with congenital long QT syndrome. Patients with low levels of potassium and magnesium in the blood are also at increased risk. If you are currently taking citalopram at a dose greater than 40 mg per days, talk to your healthcare professional. Seek immediate care if you experience an irregular heartbeat, shortness of breath, dizziness, or fainting while taking citalopram. If you are taking citalopram, your healthcare professional may occasionally order an electrocardiogram (ECG, EKG) to monitor your heart rate and rhythm. Your healthcare provider may also order tests to check levels of potassium and magnesium in your blood.
To date, there are no known problems associated with long term use of citalopram. It is a safe and effective medication when used as directed.
Citalopram should not be taken with or within 2 weeks of taking monoamine oxidase inhibitors (MAOIs). These include phenelzine (Nardil®), tranylcypromine (Parnate®), isocarboxazid (Marplan®), rasagiline (Azilect®), and selegiline (Emsam®).
Although rare, there is an increased risk of serotonin syndrome when citalopram is used with other medications that increase serotonin, such as other antidepressants, migraine medications called “triptans” (e.g., Imitrex®), some pain medications (e.g., tramadol (Ultram®), the antibiotic linezolid (Zyvox®), and amphetamines.
Citalopram may increase the effects of other medications that can cause bleeding (e.g., ibuprofen (Advil®, Motrin®), warfarin (Coumadin®) and aspirin).
Increased risk of QT prolongation when used with:
Sleep, energy, or appetite may show some improvement within the first 1-2 weeks. Improvement in these physical symptoms can be an important early signal that the medication is working. Depressed mood and lack of interest in activities may need up to 6-8 weeks to fully improve.
Suicidal thoughts or actions in children and adults
Depression and certain other psychiatric disorders are themselves associated with increases in the risk of suicide. Patients with major depressive disorder (MDD), both adult and pediatric, may experience worsening of their depression and/or the emergence of suicidal ideation and behavior (suicidality) or unusual changes in behavior, whether or not they are taking antidepressant medications. This risk may persist until significant remission occurs.
In short-term studies, antidepressants increased the risk of suicidality in children, adolescents, and young adults when compared to placebo. Short-term studies did not show an increase in the risk of suicidality with antidepressants compared to placebo in adults beyond age 24. Adults age 65 and older taking antidepressants have a decreased risk of suicidality. Patients, their families, and caregivers should be alert to the emergence of anxiety, restlessness, irritability, aggressiveness and insomnia. If these symptoms emerge, they should be reported to the patient’s prescriber or healthcare professional. All patients being treated with antidepressants for any indication should watch for and notify their healthcare provider for worsening symptoms, suicidality and unusual changes in behavior, especially during the first few months of treatment.
©2019 The College of Psychiatric and Neurologic Pharmacists (CPNP) and the National Alliance on Mental Illness (NAMI). CPNP and NAMI make this document available under the Creative Commons Attribution-No Derivatives 4.0 International License. Last Updated: January 2016.
This information is being provided as a community outreach effort of the College of Psychiatric and Neurologic Pharmacists. This information is for educational and informational purposes only and is not medical advice. This information contains a summary of important points and is not an exhaustive review of information about the medication. Always seek the advice of a physician or other qualified medical professional with any questions you may have regarding medications or medical conditions. Never delay seeking professional medical advice or disregard medical professional advice as a result of any information provided herein. The College of Psychiatric and Neurologic Pharmacists disclaims any and all liability alleged as a result of the information provided herein.
Call the NAMI Helpline at
text "NAMI" to 741741