Barbiturate Side Effects: Short-Term & Long-Term

Updated December 22, 2025

An image of Karena Mathis, author for gratitude lodge
Authored By:

Karena Mathis

Edited By

Amy Leifeste

Medically Reviewed By

Sean O'Neill
MS, LMFT 112879

Explore treatment options today. For general drug info, contact your doctor.

Barbiturate Side Effects: Short-Term & Long-Term

Updated December 22, 2025

Authored By:

Karena Mathis

Edited By

Amy Leifeste

Explore treatment options today. For general drug info, contact your doctor.

The side effects of barbiturates, sedative-hypnotics once indicated for the treatment of anxiety, insomnia, and seizures, can be dangerous. Prolonged use of this class of medication โ€“ now largely supplanted by benzodiazepines โ€“ can trigger significant health risks and potentially worsen symptoms that the drugs are intended to alleviate. This guide addresses issues that include:

  • What are some of the effects of barbiturates?
  • Can the short term effects of barbiturates be dangerous?
  • What are the effects of barbiturates in the long-term?
  • What is barbiturate addiction treatment like?
  • How to connect with addiction treatment in California.

What Do Barbiturates Do?

The core side effects of barbiturates, sedative-hypnotics include relaxation and drowsiness. Barbiturates effects are also anticonvulsant, meaning that they can halt or prevent seizures and convulsions.

Barbiturates impact the brain by enhancing the activity of GABA (gamma-aminobutyric acid), a neurotransmitter or chemical messenger. This increase in GABA levels in the brain leads to a reduction in the activity of brain cells, slowing down neural processes.

Common applications for barbiturates include their use in anesthesia, the treatment of epilepsy, both epileptic and non-epileptic seizures, as well as the management of insomnia and other related conditions.

Common Effects Of Barbiturates

Barbiturates drugs side effects occur as the drug depresses the CNS (central nervous system). Barbiturate side effects can occur immediately and over the long-term.

Short-Term

These are the most common short-term effects of barbiturates:

  • Sedation and relaxation: Barbiturates induce a calming and sedative effect, leading to feelings of relaxation and reduced anxiety.
  • Drowsiness: Many barbiturates can cause drowsiness, making them effective for addressing sleep disorders like insomnia.
  • Anticonvulsant properties: Barbiturates can rapidly halt or prevent seizures and convulsions, making them valuable for treating epilepsy and related conditions.
  • Euphoria: In higher doses, some people may experience feelings of euphoria, which can contribute to their misuse and potential for addiction.
  • Impaired cognitive and motor function: Barbiturates can impair cognitive abilities, including thinking, decision-making, and concentration. Motor skills and coordination may also be affected.
  • Respiratory depression: High doses or misuse of barbiturates can lead to slow and shallow breathing, which can be life-threatening.
  • Physical dependence: Even in the short term, regular use of barbiturates can trigger the development of physical dependence.

Long-Term

Long term effects of barbiturates include:

  • Tolerance: Long-term use often results in tolerance, where individuals require increasingly higher doses to achieve the same effects.
  • Psychological dependence: Regular use can lead to psychological dependence.
  • Withdrawal symptoms: Stopping barbiturate use can cause severe withdrawal, including anxiety, tremors, seizures, and hallucinations.
  • Cognitive impairment: Long-term effects may include cognitive deficits.
  • Liver and kidney damage: Extended use can damage these organs.
  • Risk of overdose: Long-term users may take higher doses, increasing overdose risk.
  • Interactions with other medications: Barbiturates can interact with various drugs and reduce effectiveness or cause adverse reactions.
An image of a woman contemplating long term barbiturate side effects

Barbiturate Adverse Effects

While barbiturates have legitimate medical uses, their misuse or prolonged use is associated with a range of negative effects and health risks. Here are some of the adverse outcomes provoked by barbiturate use:

Dependence And Addiction

One of the most prominent risks is the development of physical and psychological dependence on barbiturates.

Withdrawal Symptoms

Quitting after dependence can cause severe withdrawal symptoms like anxiety, tremors, hallucinations, and seizures.

Overdose

Symptoms may include extreme drowsiness, confusion, slowed breathing, or loss of consciousness. Severe cases can be fatal.

Tolerance

Higher doses may be required over time, increasing overdose risk.

Cognitive Impairment

Use may impair memory, focus, and decision-making.

Respiratory Depression

Misuse can significantly slow or stop breathing.

Liver And Kidney Damage

Prolonged use can harm major organs.

Mood Changes

Misuse can worsen depression, irritability, and mood swings.

Interactions With Other Substances

Mixing with alcohol or other drugs can be dangerous.

Risk Of Accidents

Sedative effects increase risk of falls, injuries, or accidents.

Legal And Social Consequences

Misuse can lead to legal trouble and personal relationship issues.

an image of Gratitude Lodge's rehab

Barbiturate Addiction Treatment At Gratitude Lodge

If you have developed an addiction to barbiturates, the condition is treatable. Begin your recovery at Gratitude Lodge in Newport Beach or Long Beach.

For those who are dependent on barbiturates, supervised medical detox at our pet-friendly treatment centers provides access to medications alongside continuous clinical and emotional care. Detox acts as a bridge to ongoing inpatient treatment.

All Gratitude Lodge treatment programs combine holistic and science-backed barbiturate addiction treatments that include:

  • MAT (medication-assisted treatment)
  • Psychotherapy (CBT and DBT)
  • Group therapy
  • Family therapy
  • Individual therapy
  • Holistic therapy
  • Aftercare and support

When you are ready to move beyond barbiturate addiction, call 844-576-0144.

Sources

  1. https://www.fda.gov/drugs/postmarket-drug-safety-information-patients-and-providers/sleep-disorder-sedative-hypnotic-drug-information
  2. https://pubmed.ncbi.nlm.nih.gov/10349206

Want to learn more?

Table of Contents

Browse Topics

an image of people learning about addiction

Not finding what youโ€™re
looking for?

Check out our addiction recovery blog to learn more about substance use disorders and how to get effective treatment.

FEATURED BLOGS

Begin your journey
to recovery.

Get evidence-based treatment in a peaceful location, with a
team of dedicated, expert staff.ย 

Related Pages

Insurance Verification Form