All medications

Citalopram

Mental health

Also known as Celexa

Citalopram is an SSRI antidepressant. It works by raising serotonin, a brain chemical tied to mood, and like all SSRIs it needs patience: expect two to six weeks before you feel the full benefit, often with side effects arriving first. One thing specific to citalopram: at higher amounts it can affect your heart rhythm, which is why your doctor is careful about the amount and about mixing it with certain other medicines.

How to take it

When

Once a day, morning or evening — pick the time that suits you and stick with it.

Food

With or without food, whichever is easier on your stomach.

Avoid

St. John's wort and other serotonin boosters. Ask before regular ibuprofen or naproxen use — SSRIs can raise bleeding risk.

Good to know

Watch for new or worsening depression or suicidal thoughts, especially under 25 — tell someone and call your doctor right away. Don't stop suddenly; your doctor will taper you off.

Missed a dose?

Take it when you remember, unless it's almost time for your next dose — then just skip it. Never double up.

Common side effects

  • Nausea early on, which usually settles down
  • Feeling sleepy or, for some people, having trouble sleeping
  • Dry mouth
  • More sweating than usual
  • Sexual side effects — common with SSRIs and worth mentioning to your doctor

Call a doctor if

Educational only. This summary is drawn from public FDA labeling and MedlinePlus and simplified for readability. Your prescription label and your pharmacist always come first — doses and instructions vary from person to person.