Home / Cardiovascular / Diltiazem
Home / Cardiovascular / Diltiazem


Diltiazem belongs to the class of calcium channel blocker, it helps to treat high blood pressure, certain heart rhythm disorders, and angina.

Diltiazem 120mg

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Diltiazem 60mg

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Diltiazem 90mg

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What are Diltiazem uses? 

This medicine is mainly a calcium channel blocker that helps in preventing chest pain or angina. Diltiazem HCL is very effective in increasing your ability to exercise as well as decrease how often you suffer from angina attacks.  

Cartia XT is known to work by relaxing blood vessels in your body as well as heart, while it lowers your heart rate. In this way, the blood flows easily and your heart has to work less hard in order to pump the blood.   

This medication is also helpful in treating hypertension i.e. high blood pressure as well as certain heart rhythm disorders. Diltiazem generic drug is available in the brand name of Cartia XT and Cardizem.  

This medicine is very effective in reducing conduction in the atrioventricular node that is also helpful for heart control patients with atrial fibrillation.   

What is the dosage of this Diltiazem Blood Pressure Medicine? 

You need to take Cartia medication exactly in the same manner as directed by your doctor. It is very important for you to strictly follow the prescription label. There are chances that your doctor might change your dose. You should not use this medicine in larger or smaller amounts or for a longer time than recommended by your doctor.  

Take this drug by mouth mainly before the meals and at bedtime as prescribed by your doctor, generally three to four times a day.  

You should not crush, break, open or chew an extended-release diltiazem tablet or capsule. Just swallow it whole.  

In order to make swallowing easier make sure that you ask your doctor or pharmacist if you can open a Diltiazem Cardizem capsule as well as sprinkle the medicine into a spoonful of applesauce. Without chewing, you need to swallow it right away. Remember that you should not save the mixture for later use.  

If you want to get the most benefit from Cartia medication, make sure that you take it on a regular basis. Before you run out of the medicine completely, assure that you get a prescription refilled.  

This drug is available in different strengths like Diltiazem 30mg, 60mg, 90mg, 120mg, 150mg and 180mg so the dosage of this medicine completely depends upon your medical condition, response to the treatment as well as other medication that you might be taking.  

Remember that you should never stop the intake of this drug suddenly because it can cause serious side effects. It is important for you to take this medicine even if you start feeling well in case you are taking Diltiazem HCL for treating high blood pressure because high blood pressure has no symptoms.    

Therefore, it is important for you to take blood pressure medicine for the rest of your life. Make sure that you get your blood pressure checked more often and also get your blood tests frequently.

You need to use the medicine at the same time each day so that you remember taking it regularly. In order to prevent angina effectively, it is important for you to take this medicine on a regular basis.  

You should not use this medicine in order to treat angina at the time it occurs. At this time, you can use other medicines like sublingual nitroglycerin as prescribed by your doctor in order to relieve an angina attack.   

Make sure that you use this drug at room temperature right away from direct heat, light as well as moisture.   

What if you miss a dose of cartia? 

The moment you remember, make sure that you take the missed dose. But if you see that it’s time for your next dose then make sure that you skip the missed dose. Just to make up the missed dose, you should never take the extra medicine.    

What all you need to avoid while you are taking this drug? 

Grapefruit, as well as grapefruit juice, is known to interact with this drug due to which it can cause serious side effects. Before using any grapefruit products, it is important for you to discuss with your doctor first.  

Diltiazem medication is known to impair the thinking or reactions so if you are driving or doing anything that demands alertness then you need to be very careful.  

While taking this medicine it is important for you to avoid the intake of alcohol. It is also necessary for you to avoid the intake of herbal supplements that contains St. John’s wort while you are taking diltiazem.  

Can you take this medicine during pregnancy? 

During pregnancy, make sure that you use Diltiazem only when you require it clearly. With your doctor, you can discuss about all the risks as well as benefits.  

Can a breastfeeding mother take this medicine? 

Since this drug passes into the breast milk due to which a nursing infant can suffer from some undesirable effects. So before breast-feeding, make sure that you consult your doctor once.  

Precautions you need to take while taking Diltiazem HCL 

Before you start taking this medicine, make sure that you inform your doctor or pharmacist if you are allergic to this drug or even if you are suffering from any other kinds of allergies. Since this medicine comes with certain inactive ingredients so there are chances that it can cause certain allergic reactions or other problems.  

If you have any kind of doubts or questions, you can talk to your doctor well in advance. You need to inform your doctor about your medical history before you start taking this drug mainly if you have suffered from certain types of heart rhythm problems (like sick sinus syndrome or atrioventricular block), heart failure, liver disease and kidney disease.  

This drug is known to make you feel dizzy and if you are taking alcohol or marijuana then you are going to feel more dizzy. So make sure that you do not drive, use machinery or do anything else that demands alertness until and unless you think that you can perform it safely.  

Remember that avoiding alcoholic beverages is very important for you. You also need to inform your doctor well in advance before going for any kind of surgery that you are using this drug.   

Older adults who are using Diltiazem medication have more chance to experience the side effects of this medicine like constipation, swelling in ankles or feet as well as dizziness.  

What are the side effects of this drug? 

Remember that your doctor has prescribed this medication because he or she thinks that the benefit of this medicine is more as compared to the risk side effects of this drug. Many people who are using this drug did not come across any serious side effects.  

Some of the common side effects of this drug include:

  • Rash
  • Dizziness & weakness
  • Nausea
  • Swelling
  • Headache

If you come across any allergic reaction to this medicine like swelling of your face, throat, lips & tongue, hives and difficulty in breathing then it is important for you to contact your doctor immediately.  

Get the emergency medical help immediately if you suffer from:

  • Shortness of breath even while doing the mild activity, rapid weight gain and swelling
  • Slow heartbeats
  • A light-headed feeling like you will pass away right now
  • Signs of skin reaction such as skin pain which is followed by purple or red skin rash which spreads in your upper body or face, fever, burning in your eyes, blisters & peeling, sore throat and swelling in your face or tongue
  • Pounding heartbeats or fluttering in your chest
  • Upper stomach pain, jaundice, clay-coloured stools, nausea, loss of appetite, tired feeling as well as dark urine

Therefore, this is not the complete list of side effects so if you come across any other problems make sure that you contact your doctor immediately. 

Diltiazem Interactions 

Drug interactions can completely change how your medicines work or can also increase the risk of severe side effects. Make the list of all products that you are using such as prescription drug, non-prescription drugs as well as herbal products and share this list with your doctor. You should never start, stop or change the dosage of any medicine without the permission of your doctor. 

There are total 598 drugs that are known to interact with this medicine

82 major drug interactions

463 moderate drug interactions

53 minor drug interactions 

Some of the drug names that interact with Diltiazem tablets include Amlodipine, Lasix, verapamil,loratadine, simvastatin, lidocaine, metoprolol and etc.  

How does this drug work? 

This medicine is known to work by relaxing the blood vessels in your body & heart and also lowers your heart rate.   

Cartia Warnings 

If you have very low blood pressure then you should strictly not take this medicine or even if you have a build-up of fluid in your lungs. 


We only ship medications which are approved by FDA, Also please consult your doctor to make a full decision on what medication to take.

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