August 13, 2022

Dosage, Side Effects, Uses & More

Like most medications, furosemide oral tablets can cause mild or severe side effects. The lists below describe some of the more common side effects that furosemide oral tablets can cause. These lists do not include all possible side effects.

Keep in mind that the side effects of a medicine can depend on:

  • your age
  • other health problems you have
  • other medicines you are taking

Your doctor or pharmacist can tell you more about the potential side effects of furosemide oral tablets. They can also suggest ways to help reduce side effects.

Mild side effects

Here is a short list of some of the mild side effects that furosemide oral tablets can cause. To learn about other mild side effects, talk to your doctor or pharmacist, or read furosemide oral tablets. prescribing information.

Mild side effects of furosemide oral tablets that have been reported include:

Mild side effects of many medications may disappear within days or weeks. But if they become bothersome, talk to your doctor or pharmacist.

Serious side effects

Serious side effects from furosemide oral tablets can occur, but they are not common. If you have serious side effects with furosemide oral tablets, call your doctor right away. But if you think you have a medical emergency, call 911 or your local emergency number.

Serious side effects of furosemide oral tablets that have been reported include:

*For more information on this side effect, see the “Side Effects Focus” section below.

Focus on side effects

Learn more about some of the side effects furosemide oral tablets can cause.

Tinnitus and hearing loss

Studies show that furosemide may increase the risk of certain hearing problems. In fact, it can cause tinnitus (ringing in the ears) and hearing loss.

These side effects can be temporary or permanent.

Your risk of hearing problems with furosemide may be higher If you:

  • have severe kidney problems
  • take a higher dose of furosemide
  • take the injectable form of furosemide rather than oral tablets
  • also take other medicines that have this side effect

What might help

If you have hearing problems after starting furosemide, call your doctor right away. They can check your hearing. They may also order certain tests to make sure furosemide is not building up in your body.

Your doctor may adjust your dose of furosemide or switch you to another medicine if needed. In some cases, this medicine may not be right for you. Ask your doctor for more information about this side effect.

Orthostatic hypotension

Furosemide can cause a blood pressure condition called orthostatic hypotension. With this condition, your blood pressure drops when you change positions, such as when you stand up. This can be dangerous as it can make you dizzy or cause you to fall.

In severe cases, orthostatic hypotension can cause you to pass out. It can also cause heart problems and other serious problems.

Older people have a higher risk of orthostatic hypotension. The risk of this condition may also be higher if you are taking other medications that have this side effect. The risk of orthostatic hypotension is also increased if you are dehydrated (have low fluid levels) or have an electrolyte imbalance.

What might help

When you first start taking furosemide, be careful when changing positions until you get used to the effects of the drug. Your doctor will check your electrolyte levels and order other blood tests to see how furosemide is affecting you.

Discuss all your medications and your medical history with your doctor. They can tell you if you have an increased risk of orthostatic hypotension.

If you have orthostatic hypotension with furosemide, ask your doctor what you can do to manage it. In some cases, furosemide may not be the right option for you. If so, your doctor will discuss other medications that may be more effective for you.

Severe skin reaction

Furosemide can cause a serious skin reaction. These may include:

  • blisters
  • peeling skin
  • eruption
  • urticaria
  • itch

In some cases, the drug can cause a serious skin reaction called Stevens-Johnson syndrome.

Keep in mind that a skin reaction may occur with an allergic reaction to furosemide. For more on allergic reactions, see the section below. If you are allergic to sulfa drugs, you may also be allergic to furosemide. In this case, your risk of a serious skin reaction may be increased with this drug.

What might help

If you are allergic to sulfa drugs or have had an allergic reaction to any medication in the past, tell your doctor. They will recommend if you should take furosemide.

If you develop a rash after starting or at any time while taking furosemide, call your doctor right away. They can check the cause of your rash and recommend ways to treat it.

If your rash is life-threatening, call 911 or your local emergency number immediately.

Allergic reaction

Some people may have an allergic reaction to furosemide oral tablets.

Symptoms of a mild allergic reaction may include:

  • itchy skin
  • itching
  • rinsing (temporary warmth, redness or deepening of skin color)

A more serious allergic reaction is rare but possible. Symptoms of a severe allergic reaction can include swelling under the skin, usually on the eyelids, lips, hands or feet. They can also include swelling of the tongue, mouth, or throat, which can lead to difficulty breathing.

Call your doctor right away if you have an allergic reaction to furosemide oral tablets. But if you think you have a medical emergency, call 911 or your local emergency number.


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