What is Cardene SR?Cardene SR is used to treat high blood pressure.
What is the most important information I should know about Cardene SR?If you have high blood pressure, you must take Cardene SR regularly for it to be effective. Since blood pressure declines gradually, it may take several weeks before you get the full benefit of Cardene SR. You must continue taking it even if you are feeling well. Cardene SR does not cure high blood pressure; it only keeps it under control.
Make sure to discuss diet and exercise with your doctor and follow his or her recommendations.
Be careful when standing up from a sitting or lying position as Cardene SR may make you dizzy. Use alcohol cautiously with Cardene SR because it may further lower your blood pressure and cause dizziness and drowsiness.
If you are >65 years old, you may experience more side effects with Cardene SR and your doctor may need to start you on a lower dose.
Who should not take Cardene SR?Do not take Cardene SR if you have severe narrowing of the aorta, which causes an obstruction of blood flow from the heart to the body.
Do not take Cardene SR if you are sensitive to or have ever had an allergic reaction to it.
What should I tell my doctor before I take the first dose of Cardene SR?Tell your doctor about all prescription, over-the-counter, and herbal medications you are taking before beginning treatment with Cardene SR, especially if you are taking cimetidine, cyclosporine, or other heart medications. Also, talk to your doctor about your complete medical history, especially if you have chronic heart failure or kidney or liver disease. In addition, tell your doctor if you are pregnant, plan to become pregnant, or are breastfeeding.
What is the usual dosage?The information below is based on the dosage guidelines your doctor uses. Depending on your condition and medical history, your doctor may prescribe a different regimen. Do not change the dosage or stop taking your medication without your doctor's approval.
Adults: The starting dose is usually 30 milligrams (mg), taken two times a day. The usual dose ranges from 30-60 mg, taken two times a day.
How should I take Cardene SR?Take Cardene SR exactly as prescribed, even if your blood pressure is normal. Swallow the capsule whole with a full glass of water. Do not chew, crush, or divide it.
What should I avoid while taking Cardene SR?Avoid driving or engaging in hazardous activities. Cardene SR can cause your blood pressure to become too low, making you feel lightheaded or faint.
Avoid drinking grapefruit juice or anything that contains grapefruit because it may lead to dangerous side effects.
What are possible food and drug interactions associated with Cardene SR?If Cardene SR is taken with certain other medications, the effects of either could be increased, decreased, or altered. It is especially important to check with your doctor before combining Cardene SR with the following: amiodarone, cimetidine, cyclosporine, digoxin, phenytoin, and propranolol.
What are the possible side effects of Cardene SR?Side effects cannot be anticipated. If any develop or change in intensity, tell your doctor as soon as possible. Only your doctor can determine if it is safe for you to continue taking this drug.
Side effects may include: dizziness, flushing, rash, headache, abnormal dreams, increased chest pain (angina), indigestion, constipation, nausea, pounding or rapid heartbeat, insomnia, nervousness or tremor, swelling of feet, weakness, dry mouth, frequent urination
Can I receive Cardene SR if I am pregnant or breastfeeding?The effects of Cardene SR during pregnancy and breastfeeding are unknown. Tell your doctor immediately if you are pregnant, plan to become pregnant, or are breastfeeding.
What should I do if I miss a dose of Cardene SR?Take it as soon as you remember. If it is almost time for your next dose, skip the one you missed and go back to your regular schedule. Do not take two doses at once.
How should I store Cardene SR?Store at room temperature, away from light and moisture.