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Ctd O 12.5/20 — Uses, Dosage & Benefits

Ctd O 12.5/20 is used for CTD-O 12.5/20 Tablet is used in the treatment of high blood pressure..

Medically reviewed by Dr. Balaji Krishnan, MBBS · Updated June 2026

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Active Ingredient / Composition

Olmesartan (20mg) + Chlorthalidone (12.5mg)

What is Ctd O 12.5/20 used for?

CTD-O 12.5/20 Tablet is used in the treatment of high blood pressure.

How Ctd O 12.5/20 Works

CTD-O 12.5/20 Tablet is a combination of two medicines: Olmesartan and chlorthalidone which lower blood pressure effectively. Olmesartan is an angiotensin receptor blocker (ARB). It works by blocking the hormone angiotensin thereby relaxing blood vessels. This allows the blood to flow more smoothly and the heart to pump more efficiently. Chlorthalidone is a diuretic that removes extra water and certain electrolytes from the body. Over time it also relaxes blood vessels and improves blood flow.

Dosage & Directions

Take this medicine in the dose and duration as advised by your doctor. Swallow it as a whole. Do not chew, crush or break it. CTD-O 12.5/20 Tablet is to be taken with food.

Always follow your doctor's prescription. Do not self-medicate.

Pregnancy

CTD-O 12.5/20 Tablet is unsafe to use during pregnancy.<br>There is positive evidence of human fetal risk, but the benefits from use in pregnant women may be acceptable despite the risk, for example in life-threatening situations. Please consult your doctor.

Alcohol Interaction

Taking Chlorthalidone with alcohol may have additive effects in lowering your blood pressure. You may experience headache, dizziness, lightheadedness, fainting, and/or changes in pulse or heart rate.

Ctd O 12.5/20 — Quick Facts

Composition: Olmesartan (20mg) + Chlorthalidone (12.5mg)
Prescription: Required (Rx)
Price: ₹176

Ctd O 12.5/20 — Usage FAQs

How should I take this medicine?

Follow the dosage prescribed by your doctor. Do not alter the dose without medical advice.

Can I take this medicine without a prescription?

Prescription-required medicines need a valid Rx. OTC medicines can be purchased directly.

What if I miss a dose?

Take the missed dose as soon as you remember, unless it is close to your next scheduled dose. Do not double the dose.

How long does it take to show effect?

The time to show effect varies by medicine and condition. Consult your doctor for specific timelines.

Ctd O 12.5/20 — Uses, Dosage & Benefits

Active Ingredient / Composition

What is Ctd O 12.5/20 used for?

How Ctd O 12.5/20 Works

Dosage & Directions

Pregnancy

Alcohol Interaction

Ctd O 12.5/20 — Quick Facts

Ctd O 12.5/20 — Usage FAQs

More from PingMeDoc™

Safety disclaimer

Ctd O 12.5/20 — Uses, Dosage & Benefits

Active Ingredient / Composition

What is Ctd O 12.5/20 used for?

How Ctd O 12.5/20 Works

Dosage & Directions

Pregnancy

Alcohol Interaction

Ctd O 12.5/20 — Quick Facts

Ctd O 12.5/20 — Usage FAQs

More from PingMeDoc™

Safety disclaimer