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Lithostat Side Effects

Generic name: acetohydroxamic acid

Note: This document contains side effect information about acetohydroxamic acid. Some dosage forms listed on this page may not apply to the brand name Lithostat.

Applies to acetohydroxamic acid: oral tablet.


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.

Get emergency medical help if you have any of these signs of an allergic reaction while taking acetohydroxamic acid (the active ingredient contained in Lithostat) hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have:

Common side effects may include:

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects.

For Healthcare Professionals

Applies to acetohydroxamic acid: oral tablet.


Very common (10% or more): Nausea (25%), vomiting (25), anorexia (25%)[Ref]


Very common (10% or more): Depression (20%), anxiety (20%), nervousness (20%), trembling (20%)[Ref]


Very common (10% or more): Hemolytic anemia (15%)[Ref]

Nervous system

Very common (10% or more): Headache (30%)

Frequency not reported: Trembling[Ref]


Frequency not reported: Macular skin rash, alopecia[Ref]


Very rare (less than 0.01%): Deep vein thrombosis

Frequency not reported: Phlebitis, palpitations[Ref]


Very common (10% or more): Malaise (25%)[Ref]


1. (2001) "Product Information. Lithostat (acetohydroxamic acid)." Mission Pharmacal Company

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Some side effects may not be reported. You may report them to the FDA.