As with any medicine, there are possible side effects with candesartan. However, not everyone who takes candesartan will experience side effects. In fact, most people tolerate candesartan well. When candesartan side effects do occur, they are often minor and either require no treatment or can easily be treated by you or your healthcare provider. Serious side effects are less common.
The most common candesartan side effects include:
Upper respiratory infection, such as the common cold or flu
High potassium levels in the blood (in people with congestive heart failure).
(Click Side Effects of Candesartan to learn about the specific side effects of Atacand, including serious side effects to look out for. You can also read about other possible side effects by going to: