What is the correct tylenol (acetaminophen) dose for a 13pd two month old who just got first set of shots?

Here's a chart. To help you now and later as your little one grows. It also depends on what form of Acetaminophen liquid you have. You can look it up here! http://www.Completechildrenshealth.Com/files/acetaminophen_dosagechart.Pdf.
None. Tyelenol dose depends on which one you have. Tyelenol is getting rid of the concentrated form. 80mg/0.8ml and is replacing it with 160mg/5ml . So check which you have and then ask your doctor the dose. But as for tyelenol for immunizations, it is not recommended as it can affect immune response to the vaccine.