Cartia XT (diltiazem)

What is the brand name for this medicine?
CARTIA XT

What is this medicine used for?
It is used for those who have hypertension (high blood pressure), and is sometime used to treat angina (chest pains).

How does this medicine work?
It blocks the passage of calcium across cell membranes, causing a decrease in blood vessel constriction (narrowing) and of heart muscle contraction, resulting in a lowering of blood pressure, and in relief from gripping chest pains.

How is this medicine taken?
DILTIAZEM extended-release dosage forms are normally taken once daily and may be taken with or without food.

What if I miss a dose?
Take your next dose as soon as you remember. If it is time for your next dose, skip the missed dose and go back to your regular schedule. Do not double doses.

How is this medicine stored?
Store at room temperature in a tightly closed container. Keep away from heat and light.

Are there side effects?
Possibilities include headache, dizziness or lightheadedness, water retention, nausea, and abdominal discomfort. There may also be some flushing and weakness.
If you experience other side effects that are bothersome to you, notify your doctor or pharmacist.

Are there precautions with this medicine?
This medication should probably not be used if you have any history of liver disease or of congestive heart failure. Patients are also cautioned not to open, crush, or chew the extended-release forms.

Can I take this medicine if I’m pregnant or breast-feeding?
If you suspect that you may be pregnant, talk to your doctor. There are no clear answers, but animal studies suggest caution during pregnancy, and use should only be when risks are outweighed by possible benefits. For nursing mothers, diltiazem has been shown to be excreted in breast milk, so caution is recommended.

Can I take this medicine with other medicines?
The effects of beta blockers (also for blood pressure) may be increased by diltiazem. Also, use of diltiazem at the same time as fentanyl (for chronic severe pain) may cause severe drop in blood pressure, so caution is advised. It is also possible that carbamazepine (a seizure medication) and some acid blockers may increase blood levels of diltiazem.