acetohydroxamic acid

Pronunciation: a SEET oh HYE drox AM ik AS id

Brand: Lithostat


slide 1 of 1, Lithostat,

250 mg, round, white, imprinted with 500 MPC

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What is the most important information I should know about acetohydroxamic acid?

You should not use acetohydroxamic acid if you have kidney disease, or if you have bladder symptoms that have not been checked by a doctor.

This medicine can harm an unborn baby or cause birth defects. Do not use acetohydroxamic acid if you are pregnant or if you are not using birth control.

What is acetohydroxamic acid?

Acetohydroxamic acid helps prevent a build-up of ammonia in urine that can be caused by a bladder infection. Increased ammonia in urine can cause the growth of kidney stones.

Acetohydroxamic acid is used to keep urine ammonia levels low in people who have a certain type of chronic bladder infection.

Acetohydroxamic acid is not an antibiotic and will not treat the infection itself. This medicine is only part of a treatment program that may also include antibiotics to treat the infection, and surgery to remove kidney stones. Follow your doctor's instructions very closely.

Acetohydroxamic acid may also be used for purposes not listed in this medication guide.

What should I discuss with my health care provider before taking acetohydroxamic acid?

You should not use acetohydroxamic acid if you are allergic to it, or if you have:

  • kidney disease;
  • bladder symptoms that have not been checked by a doctor with lab tests; or
  • if you are pregnant or are not using birth control.

To make sure acetohydroxamic acid is safe for you, tell your doctor if you have:

  • liver disease;
  • hemolytic anemia (a lack of red blood cells); or
  • a weak immune system.

FDA pregnancy category X. This medicine can harm an unborn baby or cause birth defects. Do not use acetohydroxamic acid if you are pregnant. Use effective birth control to prevent pregnancy while taking acetohydroxamic acid. Tell your doctor right away if you become pregnant or if you stop using birth control for any reason during treatment with this medicine.

It is not known whether acetohydroxamic acid passes into breast milk or if it could harm a nursing baby. You should not breast-feed while using this medicine.

How should I take acetohydroxamic acid?


Take acetohydroxamic acid on an empty stomach, at least 1 hour before or 2 hours after a meal.

This medicine is usually taken every 6 to 8 hours. Follow your doctor's instructions.

Do not share this medicine with another person, even if they have the same symptoms you have. Acetohydroxamic acid is for use only in people with a certain type of bladder infection.

While using acetohydroxamic acid, you may need frequent blood and urine tests.

Take this medication for the full prescribed length of time, even if you have no symptoms of a bladder infection. Acetohydroxamic acid is not an antibiotic and will not treat a bacterial infection alone. Take your antibiotic medication as directed.

You may need to use acetohydroxamic acid for several years.


What happens if I miss a dose?


Remember to take acetohydroxamic acid on an empty stomach.

What happens if I overdose?


Overdose symptoms may include general ill feeling, vomiting, and feeling anxious or uneasy.

What should I avoid while taking acetohydroxamic acid?

You may have a skin rash or flushing (warmth, redness, or tingly feeling) if you drink alcohol while taking this medicine.

Ask your doctor before taking any vitamin or mineral supplement that contains iron.

What are the possible side effects of acetohydroxamic acid?


Call your doctor at once if you have:

  • pounding heartbeats or fluttering in your chest;
  • signs of a red blood cell disorder --pale or yellowed skin, dark colored urine, fever, confusion or weakness.

Common side effects may include:

  • headache during the first 2 days of treatment;
  • skin rash, warmth, tingling or redness (especially if you drink alcohol while taking acetohydroxamic acid);
  • upset stomach, nausea, loss of appetite;
  • depressed mood;
  • anxiety, tremors, nervousness; or
  • hair loss.


What other drugs will affect acetohydroxamic acid?


Where can I get more information?

Your pharmacist can provide more information about acetohydroxamic acid.



Copyright 1996-2021 Cerner Multum, Inc. Version: 2.02. Revision date: 9/10/2014.


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