This medication is an angiotensin II receptor antagonist, prescribed for high blood pressure. It works by blocking the action of certain chemicals that tighten the blood vessels, so blood flows more smoothly. It works by relaxing blood vessels.
Olmesartan lowers blood pressure by lowering a strong chemical in the body.
It comes as a tablet to take by mouth. It is usually taken once a day with or without food. Adults—20 milligrams (mg) once a day. Your doctor may increase your dose to 40 milligrams (mg) once a day if needed. Children (6 to 16 year of age): Oral: Start with 10 mg once daily for patients who weigh 20 to less than 35 kg, or 20 mg for patients who weigh 35 kg or more.
Feeling dizzy. Rise slowly over a few minutes when sitting or lying down. Be careful climbing. Cough. Loose stools (diarrhea). High potassium level. Signs include feeling weak, lightheaded, dizzy, feel like passing out, or have numbness or tingling. Kidney function that gets worse.
Take a missed dose as soon as you think about it. If it is close to the time for your next dose, skip the missed dose and go back to your normal time. Do not take 2 doses at the same time or extra doses. Do not change the dose or stop this drug. Talk with the doctor.
If you have an allergy to olmesartan or any other part of this drug. Tell your doctor if you are allergic to any drugs. Make sure to tell about the allergy and what signs you had. This includes telling about rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs. If you have high blood sugar (diabetes) and are taking aliskiren. If you are pregnant or may be pregnant. If you are breast-feeding.
If you think there was an overdose, call your local poison control center or ER right away. Signs of a very bad reaction to the drug. These include wheezing; chest tightness; fever; itching; bad cough; blue or gray skin color; seizures; or swelling of face, lips, tongue, or throat. Very bad dizziness or passing out. Very bad headache. Signs of high potassium. Cough that does not go away. Too much sweat, fluid loss, throwing up, or loose stools. May lead to low blood pressure. For women, if you get pregnant while taking this drug. Any rash. Side effect or health problem is not better or you are feeling worse.
Sometimes drugs are not safe when you take them with certain other drugs and food. - Taking them together can cause bad side effects. - Be sure to talk to your doctor about all the drugs you take.
Store in a cool, dry place away from the reach of children. - Medicines must not be used past the expiry date.
Category D : There is positive evidence of human fetal risk based on adverse reaction data from investigational or marketing experience or studies in humans, but potential benefits may warrant use of the drug in pregnant women despite potential risks.
Angiotensin II Antagonists
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