Citalopram: Uses, Dosage, Side Effects, and Practical Tips

Citalopram is a commonly prescribed antidepressant that falls into the SSRI class. Doctors use it to treat depression and sometimes anxiety. It works by increasing serotonin levels in the brain, which can lift mood and reduce worry. Most people start feeling better within two to four weeks, though full benefit can take up to eight weeks.

Typical starting dose for adults is 10 to 20 mg once daily. Your doctor may raise the dose gradually to a usual range of 20 to 40 mg per day based on how you respond and tolerate it. Older adults or people with certain medical conditions may be started on lower doses to reduce side effect risk.

Common side effects include nausea, dry mouth, sleep changes, tiredness, and sexual side effects like reduced libido or delayed orgasm. Most side effects are mild and improve in a few weeks. If you experience severe symptoms such as chest pain, fainting, fast heartbeat, or signs of an allergic reaction, seek emergency care.

Stopping citalopram suddenly can cause withdrawal symptoms such as dizziness, irritability, flu-like feelings, and electric shock sensations. Always talk to your doctor before stopping or changing the dose. They will usually recommend a gradual taper to avoid withdrawal.

Citalopram interacts with several medicines and supplements. Avoid combining it with MAOI antidepressants, certain migraine drugs (triptans), and high doses of St. John's wort because of serotonin syndrome risk. Also be careful with blood thinners like warfarin and drugs that affect heart rhythm. Tell your provider about all prescription drugs, over-the-counter meds, and herbal products you use.

Routine monitoring may include periodic checks of mood, side effects, and sometimes an ECG if you have heart problems or take higher doses. Your doctor may check sodium levels in older adults, since hyponatremia is a rare but possible side effect.

If you are pregnant, planning pregnancy, or breastfeeding, discuss risks and benefits with your doctor. Some studies have linked SSRI exposure in pregnancy to small risks, but untreated depression also carries dangers for both parent and baby. A shared decision works best.

Practical tips: take citalopram at the same time each day, with or without food. Don't drink alcohol to try to boost mood — it can make side effects worse. Give a new dose at least 24 hours before driving until you know how it affects you. Use a pill organizer if you take multiple medications.

Questions to ask your doctor: How long should I stay on citalopram? What side effects should I report right away? Are there safer alternatives given my health history? When can I expect to feel better? Keep a simple symptom diary to track progress and side effects between visits.

How long to expect treatment?

Most people stay on citalopram for at least six to twelve months after improvement. Longer treatment may be needed for recurrent depression.

Final quick tips

Talk openly with your prescriber, follow the plan, and don't stop suddenly. If unsure, ask your pharmacist for a plain explanation and next steps.