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Ethchlorvynol Side Effects

Applies to ethchlorvynol: oral capsule liquid filled

In addition to its needed effects, some unwanted effects may be caused by ethchlorvynol. In the event that any of these side effects do occur, they may require medical attention.

Severity: Moderate

If any of the following side effects occur while taking ethchlorvynol, check with your doctor or nurse as soon as possible:

Less common:
  • Skin rash or hives
  • dizziness or faintness
  • unusual excitement, nervousness, or restlessness
  • Darkening of urine, itching, pale stools, yellow eyes or skin
  • unusual bleeding or bruising
Symptoms of overdose:
  • confusion (continuing)
  • decrease in or other change in vision
  • double vision
  • fever, chills, or sore throat
  • low body temperature
  • numbness, tingling, pain, or weakness in hands or feet
  • overactive reflexes
  • pale skin
  • shakiness and unsteady walk, clumsiness, unsteadiness, trembling, or other problems with muscle control or coordination
  • shortness of breath or slow or troubled breathing
  • slow heartbeat
  • slurred speech
  • trembling
  • unusual bleeding or bruising
  • unusual movements of the eyes
  • unusual tiredness or weakness (severe)

Minor Side Effects

Some of the side effects that can occur with ethchlorvynol may not need medical attention. As your body adjusts to the medicine during treatment these side effects may go away. Your health care professional may also be able to tell you about ways to reduce or prevent some of these side effects. If any of the following side effects continue, are bothersome or if you have any questions about them, check with your health care professional:

More common:
  • Blurred vision
  • dizziness or light-headedness
  • low blood pressure
  • indigestion
  • nausea or vomiting
  • numbness of face
  • stomach pain
  • unpleasant aftertaste
  • unusual tiredness or weakness
Less common:
  • Clumsiness or unsteadiness
  • confusion
  • drowsiness (daytime)

Side Effects: Post Treatment

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:

  • Confusion as to time, place, or person
  • convulsions (seizures)
  • dizziness
  • hallucinations (seeing, hearing, or feeling things that are not there)
  • loss of appetite
  • memory loss
  • muscle twitching
  • nausea or vomiting
  • restlessness, nervousness, or irritability
  • slurred speech
  • sweating
  • trembling
  • trouble in sleeping
  • weakness
  • weight loss, unexplained

Not all side effects for ethchlorvynol may be reported. You should always consult a doctor or healthcare professional for medical advice. Side effects can be reported to the FDA here.

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. 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.