Your doctor will explain how to take Elder Ivermectin 12mg Tablet and how much you need. Read the instructions that come with the medicine to make sure you take it correctly. Generally, it is taken on an empty stomach. You usually need to take it only once to get rid of your infection. However, if you do not feel better after taking it, talk to your doctor. To get the most benefit from the medicine, drink lots of fluids and avoid caffeine when taking this medication.