Brand Name ratio-Diltiazem CD Common Name diltiazem
The content of this page:
How does this medication work? What will it do for me?
Diltiazem belongs to a family of medications known as calcium channel blockers. It is used alone or with other medications to treat high blood pressure and angina (chest pain). It works by relaxing blood vessels and by reducing the workload of the heart. The injectable form of this medication is sometimes used in the hospital to bring abnormal heart rhythms under control.
How should I use this medication?
The recommended dose of diltiazem can range from 30 mg to 360 mg daily. The dose for the tablet form of diltiazem is usually taken 3 or 4 times a day. The dose for the capsule form of diltiazem is usually taken once daily. Swallow the capsules whole with fluids. Do not chew, or crush , or open the capsules.
The starting dose of diltiazem to treat angina is usually 120 mg to 180 mg daily. Depending on how well the medication is tolerated and how effective it is at this dose, your doctor may gradually increase the dose every 1 to 2 weeks to a maximum of 360 mg daily.
The starting dose to treat high blood pressure is usually 180 mg to 240 mg daily. It may take 2 to 4 weeks to reach a maximum benefit with any one dose, therefore dose increases should not be done more often than every 2 weeks, to a maximum of 360 mg daily.
Many things can affect the dose of medication that a person needs, such as body weight, other medical conditions, and other medications. If your doctor has recommended a dose different from the ones listed here, do not change the way that you are taking the medication without consulting your doctor.
It is important to take this medication exactly as prescribed by your doctor. If you miss a dose, take it as soon as possible and continue on with your regular schedule. If it is almost time for your next dose, skip the missed dose and continue on with your regular dosing schedule. Do not take a double dose to make up for a missed one. If you are not sure what to do after missing a dose, contact your doctor or pharmacist for advice.
Store this medication at room temperature, protect it from light and moisture, and keep it out of the sight and reach of children.
What form(s) does this medication come in?
ratio-Diltiazem CD is no longer being manufactured for sale in Canada. For brands that may still be available, search under diltiazem. This article is being kept available for reference purposes only. If you are using this medication, speak with your doctor or pharmacist for information about your treatment options.
Who should NOT take this medication?
Do not take diltiazem if you:
- are allergic to diltiazem or any ingredients of the medication
- are or may become pregnant
- have certain types of heart rhythm problems in the absence of a pacemaker
- have very low blood pressure
- have weakened pumping action of the heart (called left ventricular failure)
What side effects are possible with this medication?
- dizziness or lightheadedness
- tiredness or weakness
Although most of the side effects listed below don't happen very often, they could lead to serious problems if you do not check with your doctor or seek medical attention.
Check with your doctor as soon as possible if any of the following side effects occur:
- abdominal pain
- breathing difficulty, coughing, or wheezing
- irregular or fast, pounding heartbeat
- skin rash
- slow heartbeat (less than 50 beats per minute)
- swelling of ankles, feet, or lower legs
Are there any other precautions or warnings for this medication?
Blood pressure: Diltiazem may lower blood pressure too much in certain cases. If you experience lightheadedness, weakness, or dizziness, talk to your doctor.
Congestive heart failure: If you have congestive heart failure, discuss with your doctor how this medication may affect your medical condition, how your medical condition may affect the dosing and effectiveness of this medication, and whether any special monitoring is needed.
Diabetes: Diltiazem may cause an increase in blood sugar levels and glucose tolerance may change. People with diabetes may find it necessary to monitor their blood sugar more frequently while using this medication.
If you have diabetes or are at risk for developing diabetes, discuss with your doctor how this medication may affect your medical condition, how your medical condition may affect the dosing and effectiveness of this medication, and whether any special monitoring is needed.
Heart rhythm problems: In people with certain types of heart rhythm problems (sick sinus syndrome, second- and third-degree atrio-ventricular block) who do not have pacemakers, diltiazem may cause abnormally slow heart rates. People with certain types of heart rhythm problems should not take diltiazem. If you have a heart rhythm problem, your doctor should closely monitor your condition while you are taking diltiazem. Talk to your doctor if you have any concerns.
Kidney function: The kidneys are partially responsible for removing diltiazem from the body. As a result, kidney disease or reduced kidney function may cause this medication to build up in the body, causing side effects. If you have reduced kidney function or kidney disease, discuss with your doctor how this medication may affect your medical condition, how your medical condition may affect the dosing and effectiveness of this medication, and whether any special monitoring is needed.
Liver function: Liver disease or reduced liver function may cause this medication to build up in the body, causing side effects. If you have liver problems, discuss with your doctor how this medication may affect your medical condition, how your medical condition may affect the dosing and effectiveness of this medication, and whether any special monitoring is needed. Your doctor may want to test your liver function regularly with blood tests while you are taking this medication.
Rarely, diltiazem may cause liver damage. If you experience symptoms of liver problems such as fatigue, feeling unwell, loss of appetite, nausea, yellowing of the skin or whites of the eyes, dark urine, pale stools, abdominal pain or swelling, and itchy skin, contact your doctor immediately.
Pregnancy: Women who are or may become pregnant should not take diltiazem. If you become pregnant while taking this medication, contact your doctor immediately.
Breast-feeding: Diltiazem passes into breast milk. If you are a breast-feeding mother and are taking diltiazem, it may affect your baby. Talk to your doctor about whether you should continue breast-feeding.
Children: The safety and effectiveness of diltiazem for use by children have not been established.
What other drugs could interact with this medication?
There may be an interaction between diltiazem and any of the following:
- stop taking one of the medications,
- change one of the medications to another,
- change how you are taking one or both of the medications, or
- leave everything as is.
Medications other than those listed above may interact with this medication. Tell your doctor or prescriber about all prescription, over-the-counter (non-prescription), and herbal medications that you are taking. Also tell them about any supplements you take. Since caffeine, alcohol, the nicotine from cigarettes, or street drugs can affect the action of many medications, you should let your prescriber know if you use them.
All material copyright MediResource Inc. 1996 – 2018. Terms and conditions of use. The contents herein are for informational purposes only. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Source: www.medbroadcast.com/drug/getdrug/ratio-Diltiazem-CD