We are independent & ad-supported. We may earn a commission for purchases made through our links.
Advertiser Disclosure
Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.
How We Make Money
We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently of our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

What are the Common Hydrochlorothiazide Side Effects?

By H. Lo
Updated: Mar 03, 2024

There are several common side effects of hydrochlorothiazide, a type of drug also called a thiazide diuretic, or water pill. These side effects include blurred vision, dizziness and lightheadedness. In addition, other common hydrochlorothiazide side effects are constipation, diarrhea and nausea. All medications come with potential side effects, some mild and some severe. These common hydrochlorothiazide side effects are generally considered non-serious, but they can persist or get worse over time.

Severe hydrochlorothiazide side effects can and do occur, though they are less common. An allergic reaction is an example of a serious side effect and requires immediate medical attention. Signs of an allergic reaction include hives, breathing or swallowing difficulties and swelling of the face or throat. Other severe hydrochlorothiazide side effects that a patient might experience include muscle pain, skin rash and weakness.

In some instances, hydrochlorothiazide can also have an effect on or lead to other medical conditions such as gout, heart rhythm disorders and kidney disease. This can be due to the drug causing increased or decreased levels of substances in the body associated with these medical conditions. For example, hydrochlorothiazide can cause increased blood uric acid levels, which can then lead to gout.

Not only can hydrochlorothiazide affect medical conditions, but it can also interfere with medications as well. Digoxin, lithium and non-steroidal anti-inflammatory drugs (NSAIDs) are just some of the drugs that might interfere with hydrochlorothiazide. For example, one of the ailments that hydrochlorothiazide is used to treat is high blood pressure. The use of NSAIDs in conjunction with hydrochlorothiazide might reduce the latter drug’s effects on the medical condition.

In addition to high blood pressure, hydrochlorothiazide is also used to treat other medical conditions, one of them being fluid retention. In combating fluid retention, the drug enables the body to get rid of extra salt and water. This causes the patient to urinate frequently. Dehydration can occur as a result of frequent urination. A patient should seek a doctor if he or she suffers serious side effects associated with dehydration, such as dizziness, dry mouth and nausea.

Since hydrochlorothiazide causes frequent urination, it is advised that the medication be taken in the morning or afternoon to avoid sleep disturbances during the night. The medication comes in both tablet and liquid form and is taken by mouth. The exact dosage prescribed depends on the patient’s condition, although it is usually one or two doses a day.

The Health Board is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Discussion Comments
The Health Board, in your inbox

Our latest articles, guides, and more, delivered daily.

The Health Board, in your inbox

Our latest articles, guides, and more, delivered daily.