Citalopram is the most commonly prescribed antidepressant that works as a selective serotonin reuptake inhibitor (SSRI). The medication comes in 10mg, 20mg, and 40mg tablets, along with liquid drops. Doctors often prescribe citalopram for mental health issues. It stands out from older antidepressants because it affects serotonin. To get the best results, doctors start with a low dose and increase it over time. Patients naturally have questions when they start taking new medications. They want to know how the drug works, when they'll see results, and what side effects to expect. These concerns matter even more with citalopram because its antidepressant effects usually take one to four weeks to show results. This article explains how the drug works, recommended dosages, and interactions with other medications.

What is Citalopram?

Citalopram belongs to the selective serotonin reuptake inhibitor (SSRI) class of antidepressants. The FDA approved this medication in 1998. The drug exists as a fine white to off-white powder that's not much of either soluble in water but dissolves readily in ethanol. The WHO lists it among essential medicines to treat depressive disorders.

How Does Citalopram Work?

The medication boosts serotonin levels in the brain by blocking its reabsorption into presynaptic neurons. This blockage leads to higher serotonin concentration in the synaptic cleft and helps maintain mental balance. The drug differs from older antidepressants because it barely affects norepinephrine and dopamine neuronal reuptake.

Uses of Citalopram

Doctors prescribe it mainly for adult depression. The drug has several other uses:

• Obsessive-compulsive disorder

• Panic disorder

• Generalised anxiety disorder

• Social anxiety disorder

• Premenstrual dysphoric disorder

• Post-traumatic stress disorder.

How & When to Take Citalopram?

• People take citalopram once daily with or without food but should stick to the same schedule. 

• The morning dose works better if you have trouble sleeping. 

• Users should mix liquid drops with water before drinking. 

• Doctors suggest continuing treatment for 6 months to a year after symptoms improve.

Side Effects of Citalopram

Common side effects:

• Dry mouth

• Sweating

• Sleep issues

• Feeling sleepy or weak

• Headaches

• Nausea

• Sexual problems like delayed ejaculation.

Dosage for Citalopram

For adult:

Starting dose: 20mg once daily

Doctors may increase to 40mg after one week. 

A maximum daily dose of 20mg applies to patients over 60, those with liver issues, and poor CYP2C19 metabolisers.

Can I Take Citalopram Daily?

Yes, you need to take citalopram consistently each day. The medication can be taken with or without food at the same time daily. People who experience sleep difficulties should consider morning doses.

Precautions 

• Your doctor's regular check-ups are essential during the treatment.

• If you have heart rhythm disorders, liver disease, or seizures inform your doctor before starting this medicine.

• Take only the dosages as changing them without guidance might cause side effects.

• Avoid alcohol while taking this medicine.

• Tell your doctor about all ongoing medicines and herbal supplements as citalopram might interact with many drugs.

• If you are experiencing mood changes, increased anxiety, or palpitations while taking medicine contact your doctor.

What If You Missed a Dose?

Take the medication when you remember, unless your next dose is due soon. You should never double your dose to catch up.

What If You Overdose?

Doses above 600mg can trigger seizures in all but one of these cases. The symptoms include vomiting, shaking, a fast heartbeat, and seizures. You need immediate emergency medical attention.

Caution With Other Drugs: Interactions

Citalopram interacts with numerous drugs. Key interactions are:

Bromopride

• Methylene Blue

• MAO inhibitors

• NSAID

• Pimozide 

• Serotonin-affecting medications

• Terfenadine

• Thioridazine. 

Citalopram vs Escitalopram

Patients often ask about the differences between citalopram and its newer version, escitalopram. The composition of escitalopram includes only the active S-enantiomer of citalopram. 

Research shows escitalopram's superior effectiveness. Patients who take escitalopram demonstrate higher response rates and better improvement in depression scales than those using citalopram. Severely depressed patients show even more noticeable benefits.

Both medications share common side effects like dry mouth, headache, nausea, insomnia, and sexual problems. Citalopram poses a higher risk of QT prolongation, which affects heart rhythm.

These medications work well against depression, and your doctor will consider these differences when recommending the best option for your case.

FAQs

1. What is citalopram used for?

   Doctors use citalopram to treat depression. Doctors prescribe it to help with panic attacks. The medicine helps patients with obsessive-compulsive disorder, alcoholism, premenstrual dysphoric disorder, social anxiety disorder, and post-traumatic stress disorder.

2. How long does citalopram take to work?

   You need patience with citalopram. Some improvements show up after 1-2 weeks. Most benefits appear between 4-6 weeks after starting treatment. The medicine needs at least 6 weeks to work effectively, so don't skip your medicine.

3. What are the common side effects of citalopram?

   Common side effects are:

   • Tiredness

   • Nervousness

   • Dry mouth 

   • Sweating

   • Nausea

   • Headaches 

   • Sleep problems

   • Delayed ejaculation.

4. Is citalopram safe for long-term use?

   Studies show that citalopram stays safe when used long-term. Clinical studies show its safety matches that of other SSRIs during extended treatment. 

5. Can citalopram cause weight gain?

   Weight changes differ from person to person. Some patients lose weight at first because citalopram reduces appetite. Appetite often returns later, which might lead to modest weight gain. The good news is that citalopram's weight changes stay minor usually just a few pounds.

6. What happens if I miss a dose of citalopram?

   You should take the dose as soon as you remember it. However, skip the missed dose if it is almost time for your next one. Don't try to make up for it by taking two doses. If you often forget doses, an alarm might help remind you. Your pharmacist can suggest other ways to help you remember.

7. Can I stop citalopram suddenly?

   You should never stop without talking to your doctor first because withdrawal symptoms can occur. These symptoms might include dizziness, numbness in hands or feet, sleep problems, anxiety, headaches, and shaking. Your doctor will usually reduce your dose gradually to help you avoid these effects.

8. Does citalopram affect sleep or appetite?

   The medication often makes people drowsy and can affect their judgment or movement. Many patients experience sleep problems, such as difficulty falling or staying asleep. Your appetite might decrease when you first start taking it. Doctors need to watch children's height and weight because their growth rate might change.

9. Can citalopram be taken with other antidepressants?

   You need to be careful about mixing citalopram with other medications. Some antidepressants can interact with citalopram and might cause dangerous spikes in blood pressure. Make sure your doctor knows about all the medicines you take.

10. When should I contact a doctor while taking citalopram?

    Get medical help if you notice:

    • Irregular heartbeat

    • Shortness of breath

    • Dizziness

    • Fainting

    • Rash

    • Trouble breathing

    • Unusual bleeding.