Cardizem LA Warnings and Precautions
Make sure to let your healthcare provider know about all existing medical conditions you have and any other medications you are taking before starting Cardizem LA. Warnings and precautions also include the safety of taking Cardizem LA if you have an arrhythmia, congestive heart failure, or kidney disease, and the risk of low blood pressure and increased liver enzymes in some people.
You should talk with your healthcare provider prior to taking Cardizem LA® (diltiazem hydrochloride) if you have:
- Heart disease, including congestive heart failure
- An irregular heart rhythm (arrhythmia) that slows down the heart rate, including sick sinus syndrome
- Liver disease, including liver failure or cirrhosis
- Kidney disease
- Low blood pressure
- Any allergies, including allergies to food, dyes, or preservatives.
Also, let your healthcare provider know if you are:
- Pregnant or thinking of becoming pregnant
Make sure to tell your healthcare provider about all other medicines you are taking, including prescription and non-prescription medicines, vitamins, and herbal supplements.
Warnings and precautions to be aware of prior to taking Cardizem LA include the following:
- The medication can decrease the heart rate. This can be a problem in people with certain types of arrhythmias or people taking other medications that can slow down the heart rate.
- Cardizem LA should be used with caution in people with congestive heart failure (CHF). The drug can cause fluid retention (edema), which can be especially dangerous in people with CHF.
- The medication can lower your blood pressure, so be sure to let your healthcare provider know if you have signs of low blood pressure during treatment, including dizziness, lightheadedness, or fainting.
- Cardizem LA can increase liver enzymes (found using a simple blood test), which may be a sign of liver damage.
- Cardizem LA is metabolized and removed from the body using the liver and kidneys. Therefore, if you have liver or kidney disease, the drug may build up in your body. Your healthcare provider should monitor you more closely and may need to decrease your Cardizem LA dosage.
- Cardizem LA can interact with a number of medicines (see Cardizem LA Drug Interactions).
- Cardizem LA is considered a pregnancy Category C medication. This means that it may not be safe to use during pregnancy. Talk to your healthcare provider about the risks and benefits of using the drug when pregnant (see Cardizem LA and Pregnancy).
- The medication passes through breast milk. Therefore, if you are breastfeeding or plan to start, discuss this with your healthcare provider prior to using Cardizem LA (see Cardizem LA and Breastfeeding).