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Know the basics|Know the precautions & warnings|Know the side effects|Know the interactions|Understand the dosage

Telmisartan is a generic drug used to treat high blood pressure (hypertension). It is part of the class of drugs known as angiotensin receptor blockers (ARBs), which work by relaxing blood vessels so blood can flow more easily.


Know the basics

What is telmisartan used for?

  • Lowering blood pressure
  • Preventing complications of hypertension
  • Reducing cardiovascular risk (e.g. stroke)

How should I take telmisartan?

Take this medication by mouth with or without food as directed by your doctor, usually once daily.

The dosage is based on your medical condition and response to treatment.

Use this medication regularly to get the most benefit from it. To help you remember, take it at the same time each day. It is important to continue taking this medication even if you feel well. Most people with high blood pressure do not feel sick. For the treatment of high blood pressure, it may take up to 4 weeks before you get the full benefit of this drug.

Tell your doctor if your condition does not improve or if it worsens (such as your blood pressure readings remain high or increase).

How do I store telmisartan?

This drug is best stored at room temperature away from direct light and moisture. To prevent drug damage, you should not store telmisartan in the bathroom or the freezer. There may be different brands of telmisartan that may have different storage needs. It is important to always check the product package for instructions on storage, or ask your pharmacist. For safety, you should keep all medicines away from children and pets.

You should not flush this product down the toilet or pour them into a drain unless instructed to do so. It is important to properly discard this product when it is expired or no longer needed. Consult your pharmacist for more details about how to safely discard your product.

Know the precautions & warnings

What should I know before using telmisartan?

In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make.

Tell your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals.

Is it safe to take telmisartan during pregnancy or breast-feeding?

Telmisartan is a pregnancy category D drug. There is evidence that it can cause harm to the fetus and should only be given if the benefit greatly outweighs the risks. In animal studies, telmisartan appears in breastmilk and may cause hypotension in breastfed infants.

Therefore, it is best to avoid breastfeeding while taking this medication. Please always consult with your doctor to weigh the potential benefits and risks before taking this medication.

Know the side effects

What are the side effects of telmisartan?

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

In rare cases, telmisartan can cause a condition that results in the breakdown of skeletal muscle tissue (rhabdomyolysis), leading to kidney failure. Call your doctor right away if you have muscle pain, tenderness, or weakness especially if you also have fever, nausea or vomiting, and dark colored urine.

Call your doctor at once if you have any other serious side effects, such as:

  • feeling like you might pass out;
  • painful or difficult urination;
  • chest pain;
  • feeling short of breath, even with mild exertion;
  • swelling in your hands or feet; or
  • high potassium (slow heart rate, weak pulse, muscle weakness, tingly feeling).

Less serious side effects may include:

  • stuffy nose, sinus pain, cough;
  • back pain;
  • stomach pain, diarrhea;
  • headache, dizziness;
  • tired feeling;
  • weakness; or
  • mild skin rash.

Not everyone experiences these side effects. There may be some side effects not listed above. If you have any concerns about a side-effect, please consult your doctor or pharmacist.

Know the interactions

What drugs may interact with telmisartan?

Telmisartan may interact with other drugs that you are currently taking, which can change how your drug works or increase your risk for serious side effects. To avoid any potential drug interactions, you should keep a list of all the drugs you are using (including prescription drugs, nonprescription drugs and herbal products) and share it with your doctor and pharmacist. For your safety, do not start, stop, or change the dosage of any drugs without your doctor’s approval.

Using this medicine with any of the following medicines is not recommended. Your doctor may decide not to treat you with this medication or change some of the other medicines you take.

  • Aliskiren

Using this medicine with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.

  • Benazepril
  • Captopril
  • Enalapril
  • Enalaprilat
  • Fosinopril
  • Lisinopril
  • Moexipril
  • Perindopril Erbumine
  • Quinapril
  • Ramipril
  • Topotecan
  • Trandolapril
  • Trimethoprim

Using this medicine with any of the following medicines may cause an increased risk of certain side effects, but using both drugs may be the best treatment for you. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.

  • Aceclofenac
  • Acemetacin
  • Amtolmetin Guacil
  • Aspirin
  • Bromfenac
  • Bufexamac
  • Celecoxib
  • Choline Salicylate
  • Clonixin
  • Dexibuprofen
  • Dexketoprofen
  • Diclofenac
  • Diflunisal
  • Digoxin
  • Dipyrone
  • Etoricoxib
  • Fenoprofen
  • Ibuprofen
  • Indomethacin
  • Ketoprofen
  • Ketorolac
  • Lithium
  • Lornoxicam
  • Loxoprofen
  • Mefenamic Acid
  • Meloxicam
  • Morniflumate
  • Naproxen
  • Nimesulide
  • Oxaprozin
  • Oxyphenbutazone
  • Parecoxib
  • Phenylbutazone
  • Piroxicam
  • Pranoprofen
  • Proglumetacin
  • Propyphenazone
  • Proquazone
  • Rofecoxib
  • Salicylic Acid
  • Salsalate
  • Sodium Salicylate
  • Sulindac
  • Tenoxicam
  • Tiaprofenic Acid
  • Tolfenamic Acid
  • Tolmetin
  • Valdecoxib

Does food or alcohol interact with telmisartan?

Telmisartan may interact with food or alcohol by altering the way the drug works or increase the risk for serious side effects. Please discuss with your doctor or pharmacist any potential food or alcohol interactions before using this drug.

What health conditions may interact with telmisartan?

Telmisartan may interact with your health condition. This interaction may worsen your health condition or alter the way the drug works. It is important to always let your doctor and pharmacist know all the health conditions you currently have, especially:

  • Congestive heart failure
  • Diabetic patients who are also taking aliskiren
  • Electrolyte imbalances
  • Fluid imbalances (caused by dehydration, vomiting, or diarrhea)
  • Kidney disease
  • Liver disease

Understand the dosage

The information provided is not a substitute for any medical advice. You should ALWAYS consult with your doctor or pharmacist before using this medication.

What is the dose of telmisartan for an adult?

Usual Adult Dose for Hypertension:

Initial dose: 40 mg orally once a day with or without food, assuming adequate intravascular volume

Maintenance dose: 20 mg to 80 mg orally once a day

Usual Adult Dose for Cardiovascular Risk Reduction:

Cardiovascular risk reduction in patients unable to take ACE inhibitors: 80 mg orally once a day with or without food

It is unknown whether doses lower than 80 mg are effective in reducing the risk of cardiovascular morbidity or mortality.

When initiating telmisartan for cardiovascular risk reduction, monitoring of blood pressure is recommended, and appropriate adjustment of medications that lower blood pressure may be necessary.

What is the dose of telmisartan for a child?

The dosage has not been established in pediatric patients. It may be unsafe for your child. It is always important to fully understand the safety of the drug before using. Please consult with your doctor or pharmacist for more information.

How is telmisartan available?

Telmisartan is available in the following dosage forms and strengths:

Tablet 20 mg; 40 mg; 80 mg

What should I do in case of an emergency or overdose?

In case of an emergency or an overdose, call your local emergency services or go to your nearest emergency room.

Symptoms of overdose may include:

  • dizziness
  • fainting
  • fast or slow heartbeat

What should I do if I miss a dose?

If you miss a dose of telmisartan, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and take your regular dose as scheduled. Do not take a double dose.

Hello Health Group does not provide medical advice, diagnosis or treatment.


Telmisartan https://www.mims.com/philippines/drug/info/telmisartan?mtype=generic Accessed May 25, 2021

Micardis https://www.mims.com/philippines/drug/info/micardis Accessed May 25, 2021

Telmisartan (Oral Route) https://www.mayoclinic.org/drugs-supplements/telmisartan-oral-route/side-effects/drg-20067196?p=1 Accessed May 25, 2021

Telmisartan https://pubchem.ncbi.nlm.nih.gov/compound/Telmisartan Accessed May 25, 2021

Telmisartan https://www.nps.org.au/australian-prescriber/articles/telmisartan Accessed May 25, 2021

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Written by Stephanie Nicole Nera, RPh, PharmD Updated May 25