Sometimes the side effects take some time to go away, if they are slightly tolerable, then see how it goes, it is best to report anything to the prescribing physician. In the US pharmacies include a safety data sheet to help inform you of side effects and what is temporary, always best to check with your doc, when in doubt, even some pharmacists can be of help.
Lots of luck

In giving advice seek to help, not please your friend
SOLON