Do not start treatment with citalopram capsules because the only available dose strength is 30 mg. Use another dosage form of citalopram (eg, solution or tablets) for starting treatment and adjusting doses other than 30 mg once a day. Celexa (citalopram) is an antidepressant in a group of drugs called selective serotonin reuptake inhibitors (SSRIs). Includes Celexa side effects, interactions and indications. Celexa (citalopram) is prescribed to treat major depressive disorder in adults. Learn about its dosages, form, strengths, how to take, and more. Medscape - Depression-specific dosing for Celexa (citalopram), frequency-based adverse effects, comprehensive interactions, contraindications, pregnancy & lactation schedules, and cost. Detailed dosage guidelines and administration information for Celexa (citalopram hydrobromide). Includes dose adjustments, warnings and precautions. For depression, the typical starting dosage of Celexa in adults is 20 mg taken once per day. Your doctor will monitor you to assess how well the drug is reducing your symptoms. They may change. The recommended Celexa dosage is 20 mg once a day to start. After at least 1 week, your healthcare provider may raise your dose to up to 40 mg per day based on your response. Find patient medical information for Citalopram (Celexa) on WebMD including its uses, side effects and safety, interactions, pictures, warnings, and user ratings This article describes the dosages of Celexa, as well as its strengths and how to take it. To learn more about Celexa, see this in-depth article. The Celexa dosage for adults is typically 20 mg daily. Your prescriber give you a smaller dose at the start and work up to a maximum daily dose of 40 mg. Take the missed dose of this medication as soon as you remember. If your next dose is approaching, skip the missed one and resume your regular dosing regimen.