Citalopram (Celexa) is used to treat mental depression. Citalopram is classified as Selective serotonin re-uptake inhibitors (SSRI), an antidepressant medication that regulates level of serotonin, a neurotransmitters chemical within the brain. Neurotransmitters form the communication system of the brain. Their imbalance is believed to be responsible for depression. Celexa regulates level of serotonin in brain that helps maintain mental balance.

Citalopram can be taken by mouth in form of a tablet or liquid solution. Usually, it could be taken once a day and may be taken with or without food. When you are taking Citalopram, it is strongly recommended that you understand and follow the directions on your prescription label carefully. You should not increase or decrease the dose or take it more often than prescribed by your doctor. Citalopram must be taken regularly for 1 to 4 weeks before it shows full effect. Do not start or stop taking Citalopram without consulting your doctor and Continue to take it even if you feel well. The doctor may decrease your dose gradually.

Patients who take Celexa should be monitored daily during the first few months after starting this medicine and after any change in the dose of this medicine for side effects and alter the doses if necessary. The reason is that antidepressant medicines like Celexa are likely to have side effects including increase in the risk of suicidal thoughts and behaviors of patients who have severe depression or certain other mental or mood disorders. The side effects may also include worsening of their condition, thoughts of hurting themselves or any other sudden or unusual changes in mood or behavior. Inform your doctor if you have any unusual problems while taking Celexa. In addition, drug interactions can result in unwanted side effects or prevent a medicine from doing its job. It is recommended that you speak to your doctor about the possible side effects of using Celexa for your condition

In case of overdose, the victim may show symptoms like tiredness, weakness, sedation, dizziness, tremor, nausea, and deep sleep or loss of consciousness. If overdose is suspected, you need to call your local poison control center at 1-800-222-1222. If the victim is unconscious or not breathing, you need to call local emergency services at 911.