 [ Symptoms ] i have been on citalopram for 3 years for anxiety it has been working up until a month ago is this normal  i have anxiety attacks 3 years ago i had a melt down been taking citalopram for years and have been fine less than a month ago i am experiencing anxiety again not as bad as 3 years ago but have bouts of anxiety especially at work did my body get used to the antidepressant and has become less effective i love being on this drug no side effects and have been living a full life since taking it could this now be a medical issue such as hormonal issues i will be 42 in august [ Disease ] your body probably just got use to the drug talk to your doctor maybe he can increase your dose or you can talk about other medications