Isradipine is a calcium channel blocker tablet which is used for high blood pressure. It works by affecting the movement of calcium in the blood vessel cells, relaxing the blood vessels so that blood can flow more easily. While many people do not experience any side effects or complications, there are some side effects that may occur and precautions that need to be taken when using isradipine.
This medication needs to be taken according to the prescribed dosage schedule even if the patient feels well. The tablet should be swallowed whole and not crushed, dissolved, or divided. Isradipine does not cure high blood pressure, and some patients will need to take medication for controlling blood pressure for a long time or the rest of their lives. Untreated high blood pressure can cause serious medical problems, including heart failure or stroke.
The most common side effects of isradipine include headache, dizziness, tiredness, minor swelling of the feet and calves, nausea or vomiting, and diarrhea. This medication may on rare occasions cause serious side effects, and people who show signs of an allergic reaction, such as hives, swelling, and trouble breathing, should seek immediate medical attention. Other symptoms that can indicate a more serious problem include a pounding or irregular heartbeat, bloating or swelling of the abdominal area, significant swelling of the limbs, chest pain, or fainting. If experiencing these or any severe, persistent, or concerning symptoms, patients should speak to a doctor.
There are a number of medications that interact with isradipine, so patients should be sure to tell the prescribing doctor about all medications taken including vitamins, over the counter drugs, and supplements. In particular, the used of other blood pressure medicine or heart medication, diuretics or water pills, and medication for glaucoma should be reported. Consuming grapefruit or grapefruit juice may cause problems when taking isradipine, and some patients will be advised to follow a low-sodium diet, avoid alcohol, or avoid consuming salt substitutes containing potassium.
Pregnant or nursing women should speak to their doctors about the potential risks of taking isradipine, since it is not fully known if it affects unborn or nursing babies. People who have ever had heart, liver, kidney, or gastrointestinal problems should make sure the prescribing doctor knows about this history. While taking this medication, patients will need to have regular medical check ups to ensure that it is working correctly and is not causing any problems.
