Serax Side Effects Center

Last updated on RxList: 6/7/2022
Serax Side Effects Center

What Is Serax?

Serax (oxazepam) is a benzodiazepine used to treat anxiety disorders or alcohol withdrawal symptoms. Serax may also be used for sleep (insomnia). Serax is available in generic form.

What Are Side Effects of Serax?

Common side effects of Serax include:

  • drowsiness,
  • dizziness,
  • blurred vision,
  • headache,
  • amnesia or forgetfulness,
  • trouble concentrating,
  • slurred speech,
  • swelling,
  • skin rash,
  • nausea,
  • vomiting,
  • constipation,
  • irregular menstrual periods, or
  • loss of interest in sex.

Tell your doctor if you have unlikely but serious side effects of Serax including:

  • mental/mood changes,
  • clumsiness,
  • trouble walking,
  • tremor,
  • trouble urinating, or
  • sleep disturbances.

Dosage for Serax

Dose of Serax depends on the condition that is being treated. The recommended dose for alcohol withdrawal treatment is 15-30 mg three to four times daily. The recommended dose for anxiety treatment ranges from 10-30 mg three or four times daily.

What Drugs, Substances, or Supplements Interact with Serax?

Serax may interact with other medications including barbiturates, MAO inhibitors, medicines to treat psychiatric disorders, narcotic medications, and antidepressants. Tell your doctor all medications you are taking.

Serax During Pregnancy or Breastfeeding

Serax is not recommended for use during pregnancy due to the potential for birth defects. If you become pregnant or think you may be pregnant, inform your doctor immediately. This drug passes into breast milk and may have undesirable effects on a nursing infant. Consult your doctor before breastfeeding. Serax may be habit-forming. You may also have seizures or withdrawal symptoms (tremor, sweating, trouble sleeping, muscle cramps, stomach pain, vomiting, diarrhea, confusion, unusual thoughts or behavior, and seizure/convulsions) when you stop using Serax. Do not stop using this medication without first talking to your doctor.

Additional Information

Our Serax Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.

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.


Panic attacks are repeated attacks of fear that can last for several minutes. See Answer
Serax Consumer Information

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

Oxazepam can slow or stop your breathing, especially if you have recently used an opioid medication or alcohol. A person caring for you should seek emergency medical attention if you have slow breathing with long pauses, blue colored lips, or if you are hard to wake up.

Call your doctor at once if you have:

  • severe drowsiness;
  • a light-headed feeling, like you might pass out;
  • unusual changes in mood or behavior;
  • confusion, anger, paranoia, problems with memory or concentration;
  • tremors, slurred speech, problems with balance or muscle movement;
  • a seizure;
  • trouble breathing; or
  • upper stomach pain, dark urine, jaundice (yellowing of the skin or eyes).

Drowsiness or dizziness may last longer in older adults. Use caution to avoid falling or accidental injury.

Common side effects may include:

  • drowsiness;
  • dizziness, spinning sensation; or
  • headache.

After you stop using oxazepam, get medical help right away if you have symptoms such as: unusual muscle movements, being more active or talkative, sudden and severe changes in mood or behavior, confusion, hallucinations, seizures, suicidal thoughts or actions.

Some withdrawal symptoms may last up to 12 months or longer after stopping this medicine suddenly. Tell your doctor if you have ongoing anxiety, depression, problems with memory or thinking, trouble sleeping, ringing in your ears, a burning or prickly feeling, or a crawling sensation under your skin.

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.


Anxiety Disorder Pictures: Symptoms, Panic Attacks, and More with Pictures See Slideshow
Serax Professional Information


The necessity for discontinuation of therapy due to undesirable effects has been rare. Transient, mild drowsiness is commonly seen In the first few days of therapy. If it persists, the dosage should be reduced. In few instances, dizziness, vertigo, headache, and rarely syncope have occurred either alone or together with drowsiness. Mild paradoxical reactions. i.e.., excitement, stimulation of affect, have been reported in psychiatric patients; these reactions may be secondary to relief of anxiety and usually appear in the first two weeks of therapy.

Other side effects occurring during oxazepam therapy include rare instances of nausea, lethargy, edema, slurred speech, tremor, altered libido, and minor diffuse skin rashes—morbilliform, urticarial, and maculopapular. Such side effects have been Infrequent and are generally controlled with reduction of dosage. A case of an extensive fixed drug eruption also has been reported.

Although rare, leukopenia and hepatic dysfunction including Jaundice have been reported during therapy. Periodic blood counts and liver-function tests are advisable.

Ataxia with oxazepam has been reported in rare instances and does not appear to be specifically related to dose or age.

Although the following side reactions have not as yet been reported with oxazepam, they have occurred with related compounds (chlordiazepoxide and diazepam): paradoxical excitation with severe rage reactions, hallucinations, menstrual irregularities, change In EEG pattern, blood dyscrasias including agranulocytosis, blurred vision, diplopia, incontinence, stupor, disorientation, fever, and euphoria.

Transient amnesia or memory impairment has been reported in association with the use of benzodiazepines.

Read the entire FDA prescribing information for Serax (Oxazepam Tablets)

© Serax Patient Information is supplied by Cerner Multum, Inc. and Serax Consumer information is supplied by First Databank, Inc., used under license and subject to their respective copyrights.

Health Solutions From Our Sponsors