Barbiturate (Oral Route, Parenteral Route, Rectal Route)

Side Effects

Drug information provided by: Merative, Micromedex®

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur:

Rare

1. Bleeding sores on lips
2. chest pain
3. fever
4. muscle or joint pain
5. red, thickened, or scaly skin
6. skin rash or hives
7. sores, ulcers, or white spots in mouth (painful)
8. sore throat and/or fever
9. swelling of eyelids, face, or lips
10. wheezing or tightness in chest

Check with your doctor as soon as possible if any of the following side effects occur:

Less common

1. Confusion
2. mental depression
3. unusual excitement

Rare

1. Hallucinations (seeing, hearing, or feeling things that are not there)
2. unusual bleeding or bruising
3. unusual tiredness or weakness

With long-term or chronic use

1. Bone pain, tenderness, or aching
2. loss of appetite
3. muscle weakness
4. weight loss (unusual)
5. yellow eyes or skin

Symptoms of overdose

1. Confusion (severe)
2. decrease in or loss of reflexes
3. drowsiness (severe)
4. fever
5. irritability (continuing)
6. low body temperature
7. poor judgment
8. shortness of breath or slow or troubled breathing
9. slow heartbeat
10. slurred speech
11. staggering
12. trouble in sleeping
13. unusual movements of the eyes
14. weakness (severe)

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

More common

1. Clumsiness or unsteadiness
2. dizziness or lightheadedness
3. drowsiness
4. "hangover" effect

Less common

1. Anxiety or nervousness
2. constipation
3. feeling faint
4. headache
5. irritability
6. nausea or vomiting
7. nightmares or trouble in sleeping

Confusion, mental depression, and unusual excitement may be more likely to occur in very ill patients.

After you stop using this medicine, your body may need time to adjust. If you took this medicine in high doses or for a long time, this may take up to about 15 days. During this period of time check with your doctor if any of the following side effects occur (usually occur within 8 to 16 hours after medicine is stopped):

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

• Precautions

Portions of this document last updated: May 01, 2024

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