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Cardizem® CD Capsules and Cardizem® Tablets
Consumer Medicine Information (CMI) summary
The full CMI on the next page has more details. If you are worried about using this medicine, speak to your doctor or pharmacist.
1. Why am I using Cardizem?
Cardizem CD capsules or Cardizem tablets both contain an active ingredient diltiazem hydrochloride. Cardizem tablets are used to prevent angina. Cardizem CD capsules are used to prevent angina or to treat hypertension (high blood pressure). For more information, see Section 1. Why am I using Cardizem? in the full CMI.
2. What should I know before I use Cardizem?
Do not use if you have ever had an allergic reaction to Cardizem CD capsules or Cardizem tablets or any of the ingredients listed at the end of the CMI. Talk to your doctor if you have any other medical conditions, take any other medicines, or are pregnant or plan to become pregnant or are breastfeeding. For more information, see Section 2. What should I know before I use Cardizem? in the full CMI.
3. What if I am taking other medicines?
Some medicines may interfere with Cardizem and affect how it works. A list of these medicines is in Section 3. What if I am taking other medicines? in the full CMI.
4. How do I use Cardizem?
- Cardizem CD capsules can be taken once a day, preferably at the same time every day.
- Cardizem tablets can be taken three or four times a day.
- Swallow the capsules or the tablets with a glass of water. Do not chew them.
- Your doctor will tell you how often and how much Cardizem CD or Cardizem tablets to take. More instructions can be found in Section 4. How do I use Cardizem? in the full CMI.
5. What should I know while using Cardizem?
Things you should do
- Remind any doctor, dentist or pharmacist you visit that you are using Cardizem CD or Cardizem tablets.
- If you are taking these medicines for angina, tell your doctor if you continue to have angina attacks or if they become more frequent.
- Take these medicines exactly as your doctor has prescribed. Things you should not do
- Do not use these medicines to treat any other complaints unless your doctor says to.
- If you are taking these medicines for angina, do not suddenly stop taking your medicine since this can cause severe angina for a day or two.
- Do not use during pregnancy. Driving or using machines
- Be careful driving or operating machinery until you know how these medicines affect you. Looking after your medicine
- Keep these medicines in a cool, dry place where it stays below 25°C. For more information, see Section 5. What should I know while using Cardizem? in the full CMI.
6. Are there any side effects?
All medicines can have side effects. Sometimes they are serious, but most of the time they are not. Tell your doctor or pharmacist as soon as possible if you do not feel well while you are using these medicines. Some of the serious side effects are heat beating irregularly, slowly or very quickly; continuously lightheaded or dizzy; feeling pain, which may be severe, in your left arm and chest. For more information, including what to do if you have any side effects, see Section 6. Are there any side effects? in the full CMI.
Cardizem® CD Capsules and Cardizem® Tablets
Active ingredient: Diltiazem hydrochloride
Consumer Medicine Information (CMI)
This leaflet provides important information about using Cardizem CD capsules and Cardizem tablets. You should also speak to your doctor or pharmacist if you would like further information or if you have any concerns or questions about using Cardizem CD capsules or Cardizem tablets. Where to find information in this leaflet:
- Why am I using Cardizem?
- What should I know before I use Cardizem?
- What if I am taking other medicines?
- How do I use Cardizem?
- What should I know while using Cardizem?
- Are there any side effects?
- Product details
1. Why am I using Cardizem?
You have been prescribed either Cardizem CD capsules or Cardizem tablets. These medicines both contain an active ingredient called diltiazem hydrochloride. The difference between these is that Cardizem CD is designed to release the active ingredient slowly so that it works over 24 hours and can be taken once a day (CD stands for "controlled delivery"). Cardizem tablets release the active ingredient faster and so must be taken more often (3-4 times a day, as your doctor has instructed). These medicines belong to a group of medicines called calcium channel blockers or calcium antagonists. They work by opening up blood vessels, which lowers blood pressure and lets more blood and oxygen reach the heart. They do not change the amount of calcium in your blood or bones. Cardizem tablets are used to prevent angina. Cardizem CD capsules are used to prevent angina or to treat hypertension (high blood pressure). Angina is a pain or uncomfortable sensation in the chest, often spreading to the arms or neck and sometimes to the shoulders and back. The pain of angina is due to a shortage of oxygen to the heart. High blood pressure can have many different causes, including kidney disease, hardening of the arteries and some hormone imbalances. However, the vast majority of people with high blood pressure have no identifiable cause for it. If left untreated, high blood pressure can lead to serious health problems such as a stroke or heart attack. Your doctor may have prescribed these medicines for another reason. Ask your doctor if you have any questions about why these medicines have been prescribed for you. There is no evidence that these medicines are addictive. These medicines are available only with a doctor's prescription.
2. What should I know before I use
Cardizem?
Warnings
Do not use either Cardizem CD capsules or Cardizem
tablets if:
- you are allergic to diltiazem hydrochloride, or any of the ingredients listed at the end of this leaflet. Symptoms of an allergic reaction to these medicines may include: o asthma, wheezing or shortness of breath o swelling of the face, lips or tongue, which may cause difficulty in swallowing or breathing o hives, itching or skin rash o fainting Always check the ingredients to make sure you can use these medicines.
- you have certain types of abnormal heart rhythm
- you have hypotension (low blood pressure)
- you have had a heart attack or have other heart- related complications
- you have pulmonary congestion (fluid on the lungs)
- you are currently taking any of the following medications: o dantrolene (muscle relaxant) o ivabradine (for heart failure/angina)
- the packaging is torn or shows signs of tampering or if tablets or capsules do not look right
- the expiry date (EXP) printed on the pack has passed If you take these medicines after the expiry date has passed, it may not work as well.
Check with your doctor if you:
- are not sure whether you should start taking these medicines
- take any medicines for any other condition
- have allergies to: o any other medicines o any other substances, such as foods, preservatives or dyes
- have or have had any medical conditions, especially the following: o abnormal heart beat rhythm o hypotension (low blood pressure) o heart attack or other heart-related complications o impaired renal (kidney) or hepatic (liver) function o diabetes o asthma
Do not take a double dose to make up for the dose you missed.
- If you have trouble remembering to take your medicine, ask your pharmacist for some hints.
If you take too many Cardizem CD capsules or
Cardizem tablets
If you think that you or anyone else may have taken too many Cardizem CD capsules or Cardizem tablets, you may need urgent medical attention. You should immediately:
- phone the Poisons Information Centre (by calling 13 11 26) , or (New Zealand 0800 POISON or 0800 764 766) or
- contact your doctor, or
- go to the Emergency Department at your nearest hospital. You should do this even if there are no signs of discomfort or poisoning. If you take too much of these medicines, you may:
- feel continuously light-headed or dizzy
- notice your heart beating very slowly
- feel pain, which could be severe, in your left arm and chest. If any of these occur, you should get medical attention immediately.
5. What should I know while using
Cardizem?
Things you should do
Take these medicines exactly as your doctor has prescribed. If you do not follow your doctor's instructions, you may not get relief from your attacks of angina, or your blood pressure may not be as well controlled as it could be. If you are taking these medicines for angina, tell your doctor if you continue to have angina attacks or if they become more frequent. Tell your doctor dentist or pharmacist that you are taking Cardizem CD capsules or Cardizem tablets if you are about to be started on any new medicine.
Things to be careful of
Be careful not to overdo physical activities when you first start using these medicines. You may feel better when you start taking these medicines, but you will need time to improve your physical fitness. Drinking grapefruit juice may increase the effects of Cardizem and Cardizem CD. Get up slowly when getting out of bed or standing up if you feel light-headed, dizzy or faint. If this is a problem and it gets worse or continues, talk to your doctor.
Things you should not do
- Do not use these medicines to treat any other complaints unless your doctor says to.
- Do not give these medicines to anyone else, even if they have the same condition as you.
- As mentioned previously, if you are taking these medicines for angina, do not suddenly stop taking your medicine since this can cause severe angina for a day or two.
Driving or using machines
Be careful before you drive or use any machines or tools until you know how these medicines affect you. These medicines may cause dizziness and fainting in some patients, especially when you first start to use them. Make sure you know how you react to these medicines before you drive a car, operate machinery, or do anything else that could be dangerous if this happens to you.
Looking after your medicine
- Keep these medicines in their packaging until it is time to take them. If you take the medicine out of its container it may not keep well.
- Store below 25 °C. Store it in a cool dry place away from moisture, heat or sunlight; for example, do not store it:
- in the bathroom or near a sink, or
- in the car or on window sills. A locked cupboard at least one-and-a half metres above the ground is a good place to store medicines. Keep it where young children cannot reach it.
Getting rid of any unwanted medicine
If you no longer need to use this medicine or it is out of date, take it to any pharmacy for safe disposal. Do not use this medicine after the expiry date.
6. Are there any side effects?
These medicines help most people with angina, and Cardizem CD will help control most people's blood pressure, but they may have unwanted effects in a few people. All medicines can have side effects. If you do experience any side effects, most of them are minor and temporary. However, some side effects may need medical attention. See the information below and, if you need to, ask your doctor or pharmacist if you have any further questions about side effects.
Less serious side effects
Less serious side effects What to do Skin-related
- small round, raised itchy areas on the skin
- rash or an itchy, burning or prickly sensation
- increased sensitivity to the sun General
- swelling or flushing (feeling hot suddenly)
- headache
- dizziness
- loss of appetite
- dry mouth
- weight increase
- weakness or tiredness
- trouble sleeping Ear-related
- ringing or other persistent noise in the ears Gut-related
- nausea, vomiting, constipation, diarrhoea, indigestion, gastric pain Nervous system-related
- confusion, hallucinations, abnormal dreams, mental depression or mood changes
- nervousness, tremor
- loss of memory
- unusual movements or uncontrollable movements Speak to your doctor if you have any of these less serious side effects and they worry you.
Serious side effects
Serious side effects What to do General
- you have difficulty breathing, wheezing or coughing
- you have blisters and bleeding in the lips, eyes, mouth, nose or genitals Skin Related
- you have skin reactions such as red, painful or itchy spots, blisters or peeling of the skin Cardiovascular Related
- you notice your heart beating irregularly, slowly or very quickly
- you feel pain, which may be severe, in your left arm and chest
- you feel continuously light headed or dizzy Call your doctor straight away, or go straight to the Emergency Department at your nearest hospital if you notice any of these serious side effects. Tell your doctor or pharmacist if you notice anything else that may be making you feel unwell. Other side effects not listed here may occur in some people.
Reporting side effects
After you have received medical advice for any side effects you experience, you can report side effects as follows: Australia: Therapeutic Goods Administration online at www.tga.gov.au/reporting-problems New Zealand: Medsafe online at: https://www.medsafe.govt.nz/safety/report-a- problem.asp By reporting side effects, you can help provide more information on the safety of this medicine. Always make sure you speak to your doctor or pharmacist before you decide to stop taking any of your medicines.
7. Product details
This medicine is only available with a doctor's prescription. What Cardizem contains: Cardizem CD 180 and 240 mg capsules Active ingredient (main ingredient) Diltiazem hydrochloride 180 mg or 240 mg Other ingredients (inactive ingredients) fumaric acid, purified talc, non- pareil seeds (sucrose), colloidal anhydrous silica, white beeswax, ethylcellulose, castor oil, stearic acid, methacrylic
