Taking ativan for anxiety or mental disorders can be a helpful short-term solution, but it's important to be aware of the risks involved. The effects of ativan typically take a few minutes to kick in, but the drug can have long-term side effects. Here are some things to keep in mind when taking ativan online: Ativan is a medication that can have both short- and long-term side effects. Short-term side effects of ativan include drowsiness, dizziness, and difficulty concentrating. Long-term side effects of ativan can include addiction and potentially fatal heart problems. It's important to be aware of these risks when taking ativan online, especially if you're using the drug for mental health reasons. If you're considering taking ativan 2mg online, talk to your doctor first to see if it's safe for you.