Anti-depressants often take at least 4-6 weeks before they start to really work, and when you first start them they can cause your depression to get worse or your side effects to go crazy. You need to give it time to get into your body though. All medicines have side effects, and taking them properly is key to your body getting used to it sooner.
started me on citalopram been on them for about four days really struggling to want to take them as dont like how i feel
What is the name of the drug your taking?? And how long have you been taking them??