Lithostat

Generic Name: acetohydroxamic acid (a SEET oh HYE drox AM ik AS id)
Brand Name: Lithostat

What is Lithostat (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 is the most important information I should know about Lithostat (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.

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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 should I discuss with my health care provider before taking Lithostat (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 Lithostat (acetohydroxamic acid)?

Follow all directions on your prescription label. Your doctor may occasionally change your dose to make sure you get the best results. Do not take this medicine in larger or smaller amounts or for longer than recommended.

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.

Store at room temperature away from moisture and heat. Keep the bottle tightly closed when not in use.

What happens if I miss a dose?

Take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose.

Remember to take acetohydroxamic acid on an empty stomach.

What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

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

What should I avoid while taking Lithostat (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.

Lithostat (acetohydroxamic acid) side effects

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have:

  • pounding heartbeats or fluttering in your chest;

  • signs of a blood clot in your leg--pain, swelling, warmth, or redness in one or both legs; or

  • 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.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

See also: Side effects (in more detail)

What other drugs will affect Lithostat (acetohydroxamic acid)?

Other drugs may interact with acetohydroxamic acid, including prescription and over-the-counter medicines, vitamins, and herbal products. Tell each of your health care providers about all medicines you use now and any medicine you start or stop using.

Where can I get more information?

  • Your pharmacist can provide more information about acetohydroxamic acid.
  • Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.
  • Disclaimer: Every effort has been made to ensure that the information provided by Cerner Multum, Inc. ('Multum') is accurate, up-to-date, and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. Multum information has been compiled for use by healthcare practitioners and consumers in the United States and therefore Multum does not warrant that uses outside of the United States are appropriate, unless specifically indicated otherwise. Multum's drug information does not endorse drugs, diagnose patients or recommend therapy. Multum's drug information is an informational resource designed to assist licensed healthcare practitioners in caring for their patients and/or to serve consumers viewing this service as a supplement to, and not a substitute for, the expertise, skill, knowledge and judgment of healthcare practitioners. The absence of a warning for a given drug or drug combination in no way should be construed to indicate that the drug or drug combination is safe, effective or appropriate for any given patient. Multum does not assume any responsibility for any aspect of healthcare administered with the aid of information Multum provides. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the drugs you are taking, check with your doctor, nurse or pharmacist.

Copyright 1996-2012 Cerner Multum, Inc. Version: 2.02. Revision Date: 2014-09-10, 12:59:17 PM.

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