Some side effects of divalproex ER, while occurring infrequently, are potentially serious and should be reported immediately to your healthcare provider. These include, but are not limited to:
There are other possible divalproex ER side effects that occur less frequently. These side effects occur in less than 5 percent of people. For these side effects, however, it is difficult to tell whether they are actually caused by divalproex ER or other factors.
Some of these less common but possible divalproex ER side effects include: