Azelnidipine 16 mg is an oral medicine belonging to the category of calcium channel blockers used to treat high blood pressure and chest pain.

More Common  

1. Headache 
2. Dizziness 
3. Constipation 
4. Skin rash 
5. Decreased blood pressure 
6. Nausea 

Less Common 

1. Lightheadedness 
2. Palpitations 
3. Oedema (accumulation of water in the tissues) 

Azelnidipine works by helping the blood vessels relax and widen, which makes it easier for blood to flow and lowers blood pressure. It blocks three types of calcium channels—L-type, T-type, and N-type that normally tighten blood vessels and make the heart work harder. By easing these signals, Azelnidipine opens the pathways and lightens the heart’s load.

Pregnancy

Pregnant women are not recommended to take Azelnidipine, as there are no human studies supporting its safety during pregnancy. In case of an emergency, consult a doctor before using it.

Breastfeeding

Azelnidipine can pass into breast milk, so it’s used with caution during breastfeeding. Other safer options are usually tried first. If azelnidipine is needed, the baby should be watched closely for any changes like diarrhea or sleepiness. Always talk to your doctor before using it.

Kidney and Liver Problems

Patients suffering from kidney and liver problems are more prone to kidney and liver damage, as the medicine is converted into a less toxic form in the liver and excreted through the kidney. They may cause interactions and cause severe toxicity, so consult a doctor before using them.

Azelnidipine is generally safe with food, and it is recommended to avoid alcohol and smoking with azelnidipine, as they can alter the drug’s effect and may cause severe drowsiness and sedation because of their direct action on the brain.

Avoid taking Azelnidipine 16 mg with the following medicines, as it may increase or decrease the desired effect, or in worse cases, it could be fatal:

IUPAC (International Union of Pure and Applied Chemistry)/ Chemical name

3-O-(1-benzhydrylazetidin-3-yl) 5-O-propan-2-yl 2-amino-6-methyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate 

Daily dose

Take azelnidipine exactly as your doctor recommends. The dose may change based on your condition and how well you respond. Do not take more than prescribed without consulting your doctor.

Missed Dose

If you forget to take your medicine, take the medication as soon as you remember. If it’s nearly time for your next dose, skip the missed one and continue with your regular schedule. Always consult the doctor before making any changes to your dosage.

Overdose

It is not recommended to take more than 16 mg of Azelnidipine per day, as it may cause severe adverse effects like extreme drowsiness, confusion, low blood pressure, unconsciousness, high fever, severe diarrhea, and heart weakness. 

1. Store the medicine at room temperature 
2. Keep away from sunlight and moisture 
3. Keep out of reach of children 

1. Take Azelnidipine exactly as prescribed by your doctor, at the same time each day. 
2. Do not stop taking Azelnidipine without your doctor’s approval, even if you feel better. 
3. If you forget to take Azelnidipine, take it as soon as you remember. If it’s almost time for your next dose, skip the missed dose. 

Azelnidipine is a medicine used to treat high blood pressure and chest pain due to poor blood flow to the heart. It helps by relaxing blood vessels and improving circulation, which eases the heart’s workload. Common side effects include headaches, dizziness, swollen ankles, and sometimes tummy discomfort or skin rashes. People with serious liver problems, very low blood pressure, heart issues, or women who are pregnant or breastfeeding, should inform their doctor before using it. Drinking grapefruit juice with this medication makes it stronger and increases side effects, so it’s best skipped. Always store azelnidipine in a cool, dry place away from sunlight, and keep it in its original packaging. Taking more than 4 mg daily can cause overdosing effects like severe hypotension, dizziness, fainting, and potentially life-threatening cardiovascular collapse.

What is the mechanism of action of azelnidipine tablets?

Azelnidipine works by helping the blood vessels relax and widen, which makes it easier for blood to flow and lowers blood pressure. It blocks three types of calcium channels—L-type, T-type, and N-type that normally tighten blood vessels and make the heart work harder. By easing these signals, azelnidipine opens the pathways and lightens the heart’s load.

What are the uses of azelnidipine tablets? 

Azelnidipine is a medicine used to treat high blood pressure and chest pain due to poor blood flow to the heart. It helps by relaxing blood vessels and improving circulation, which eases the heart’s workload.

What are the side effects of an azelnidipine tablet? 

Common side effects of Azelnidipine use include headaches, dizziness, swollen ankles, and sometimes tummy discomfort or skin rashes.

1. Tewari J, Qidwai KA, Roy S, Rana A, Kumar S, Sonkar SK, Tewari A, Atam V. Azelnidipine and its role in decreasing urinary albumin creatinine ratio in people with type 2 diabetes and hypertension: a systematic review and meta-analysis. J Diabetes Metab Disord. 2024 Dec 16;24(1):7. Available from. 
2. National Center for Biotechnology Information. PubChem Compound Summary for CID 65981, Azelnidipine. Bethesda (MD): National Library of Medicine (US). Available from.. 
3. Wishart DS, Knox C, Guo AC, et al. DrugBank: Azelnidipine (DB09230) [Internet]. Edmonton (CA): University of Alberta; 2008– [cited 2026 Feb 3]. Available from.