Dynacirc Side Effects
Water retention, fatigue, and headaches are the most common side effects that have been reported with Dynacirc. Side effects that are rare (occurring in less than 1 percent of people) include insomnia, impotence, and constipation. There are also several less common side effects of Dynacirc that are potentially serious and that may require prompt medical attention, including depression, chest pain, and arrhythmia.
As with any medicine, side effects are possible with Dynacirc® (isradipine); however, not everyone who takes the drug will experience side effects. In fact, most people tolerate it quite well. If side effects do occur, in most cases, they are minor and either require no treatment or can be easily treated by you or your healthcare provider.
(This article covers many, but not all, of the possible side effects with Dynacirc. Your healthcare provider can discuss a more complete list of Dynacirc side effects with you.)
Dynacirc has been studied thoroughly in clinical trials, in which a group of people taking the drug have side effects documented and compared to another group not taking the medicine. This way, it is possible to see what side effects occur, how often they appear, and how they compare to the group not taking the medicine.
In these studies, the most common Dynacirc side effects included:
- Headaches -- in up to 22 percent of people
- Swelling or water retention (edema) -- up to 8.7 percent
- Fatigue -- up to 8.5 percent
- Dizziness -- up to 8 percent
- Feelings of a forcefully or rapidly beating heart (palpitations) -- up to 5.1 percent
- Flushing (redness of the skin, especially the face) -- up to 5.1 percent
- Nausea -- up to 5.1 percent.
Other common side effects, occurring in 1 to 5 percent of people, included:
- Chest pain
- Difficulty breathing
- Fast heart rate
- Frequent urination