Don't miss the dose. I have another option for you. What you do, is take a can of heated beans and put some water in your mouth. "Puke" it up in the toilet or somewhere random, put a thermometer in a cup of warm tea and take a picture of it to send to a close family member and finally use just a bit of makeup to make yourself look flushed and pale. I've done this many a time to get out of things.
The last thing you want to do is miss that dose, trust me.