Zaleplon Side Effects

It is possible that some side effects of zaleplon may not have been reported. These can be reported to the FDA here. Always consult a healthcare professional for medical advice.

For the Consumer

Applies to zaleplon: oral capsule

As well as its needed effects, zaleplon may cause unwanted side effects that require medical attention.

If any of the following side effects occur while taking zaleplon, check with your doctor immediately:

Less common
  • Anxiety
  • blurred or double vision
  • not feeling like oneself
Rare
  • Nosebleed
  • seeing, hearing, smelling, or feeling things that are not there

If any of the following symptoms of overdose occur while taking zaleplon, get emergency help immediately:

Symptoms of overdose
  • Confusion
  • clumsiness or unsteadiness, severe
  • dizziness or fainting
  • drowsiness, severe
  • weak muscle tone
  • troubled breathing
  • unusual dullness or feeling sluggish

Some zaleplon side effects may not need any medical attention. As your body gets used to the medicine these side effects may disappear. Your health care professional may be able to help you prevent or reduce these side effects, but do check with them if any of the following side effects continue, or if you are concerned about them:

More common
  • Dizziness
  • headache
  • muscle pain
  • nausea
Less common
  • Abdominal pain
  • burning, prickling, or tingling sensation
  • constipation
  • cough
  • difficulty concentrating
  • drowsiness
  • dryness of mouth
  • excess muscle tone
  • eye pain
  • fever
  • heartburn, indigestion, or acid stomach
  • itching
  • itching or burning eyes
  • joint stiffness and/or pain
  • memory loss
  • menstrual pain
  • mental depression
  • nervousness
  • sensitive hearing
  • severe headache
  • shortness of breath
  • skin rash
  • tightness in chest
  • trembling or shaking
  • troubled breathing
  • unusual weakness or tiredness
  • wheezing

After you stop taking this drug, it is possible that you may still experience side effects that need medical attention. If you notice any of the following side effects check with your doctor immediately:

  • Abdominal and muscle cramps
  • convulsions (seizures)
  • increased sweating
  • sadness
  • trembling or shaking
  • vomiting

For Healthcare Professionals

Applies to zaleplon: oral capsule

General

General side effects including headache (28% to 38%), asthenia (5% to 8%), fever (2%), malaise (less than 1% to 2%), and photosensitivity (less than 1% to 1%) have been reported.

Nervous system

Nervous system side effects including dizziness (7% to 8%), somnolence (5%), amnesia (2% to 4%), anxiety (less than 1% to 3%), paresthesia (3%), depersonalization (less than 1% to 2%), tremor (2%), hypesthesia (less than 1% to 2%), hallucinations (less than 1% to 1%), and vertigo (less than 1% to 1%) have been reported.

Gastrointestinal

Gastrointestinal side effects including nausea (7% to 8%), dyspepsia (4% to 7%), abdominal pain (5% to 6%), anorexia (<1% to 2%), and colitis (1%) have been reported.

Musculoskeletal

Musculoskeletal side effects including myalgia (5% to 7%) have been reported.

Ocular

Ocular side effects including eye pain (4%) and abnormal vision (<1 to 2%) have been reported.

Genitourinary

Genitourinary side effects including dysmenorrhea (2% to 4%) have been reported.

Other

Other side effects including hyperacusis (2%), parosmia (<1% to 2%), and ear pain (<1% to 1%) have been reported.

Respiratory

Respiratory side effects including epistaxis (<1% to 1%) have been reported.

Metabolic

Metabolic side effects including peripheral edema (<1% to 1%) have been reported.

Psychiatric

Postmarketing reports: Nightmares

Disclaimer: Every effort has been made to ensure that the information provided is accurate, up-to-date and complete, but no guarantee is made to that effect. In addition, the drug information contained herein may be time sensitive and should not be utilized as a reference resource beyond the date hereof. This material does not endorse drugs, diagnose patients, or recommend therapy. This information is a reference resource designed as supplement to, and not a substitute for, the expertise, skill , knowledge, and judgement of healthcare practitioners in patient care. The absence of a warning for a given drug or combination thereof in no way should be construed to indicate safety, effectiveness, or appropriateness for any given patient. Drugs.com does not assume any responsibility for any aspect of healthcare administered with the aid of materials provided. 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 substances you are taking, check with your doctor, nurse, or pharmacist.

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