What Are Barbiturates and How Do They Work?

Barbiturates are medications that act as central nervous system depressants. They help reduce nerve activity, leading to muscle relaxation and potentially lowering heart rate, breathing, and blood pressure. Barbiturates increase the activity of gamma-aminobutyric acid (GABA), a neurotransmitter that calms the brain by producing a sedative effect.

These drugs were originally developed to help people relax and sleep. However, due to their high risk of dependence and side effects, they have been largely replaced by benzodiazepines in both medical and recreational settings. Despite this, benzodiazepines also carry a risk of physical dependence and other adverse effects.

Barbiturates Uses

Barbiturates are sometimes prescribed by doctors to treat various conditions, including:

  • Seizure Disorders (Epilepsy)
  • Increased Pressure in the Skull
  • Severe Skull Trauma

They are also used as anesthetics. Off-label uses include treating:

  • Migraines
  • Jaundice
  • Trauma

Barbiturates Side Effects

Common side effects of barbiturates include:

  • Drowsiness
  • Headache
  • Low Blood Pressure
  • Nausea
  • Sedation
  • Skin Rash

Serious Side Effects of Barbiturates:

  • Slow or difficult breathing
  • Fainting
  • Hallucinations
  • Temporary cessation of breathing

Rare Side Effects of Barbiturates:

  • Agranulocytosis (a severe reduction in white blood cells)
  • Erythroderma (widespread redness of the skin)
  • Liver Injury
  • Megaloblastic Anemia
  • Stevens-Johnson Syndrome (a severe skin reaction)

If you experience any serious symptoms, contact your doctor immediately. If you notice any reactions to barbiturates, avoid further use and consult your healthcare provider.

Important Note:

Your doctor prescribed this medication because they judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not experience serious side effects. If you encounter any severe reactions, seek medical help right away.

How Barbiturates Should Be Taken

Barbiturates are sedative-hypnotics, a type of central nervous system (CNS) depressant used to treat insomnia, seizures, and headaches. They can also be used for preoperative sedation in a hospital setting. Common brand names include Amobarbital, Secobarbital, Butabarbital, Pentobarbital, and Phenobarbital.

Dosages Information for Barbiturates

  • Amobarbital (Amytal): Powder for injection: 500 mg
  • Secobarbital (Seconal): Capsule: 500 mg
  • Butabarbital (Butisol): Tablets: 30 mg and 50 mg; Oral solution: 30 mg/5 mL

Missed Dose

Missing one or two doses typically doesn’t cause harm. However, some medications may not work effectively if doses are skipped. If you miss a dose, take it as soon as possible. Consult your doctor for specific advice.

Overdose

An accidental overdose can lead to serious health issues. If you take more than the prescribed amount, seek medical attention immediately.

Interactions

Barbiturates can interact with various drugs, potentially reducing their effectiveness. Always inform your doctor or pharmacist about any medications you are taking. Some drugs that interact with barbiturates include Atazanavir, Boceprevir, Lurasidone, and Ranolazine.

Storage

  • Store barbiturates at room temperature (68ºF to 77ºF / 20ºC to 25ºC).
  • Keep them away from direct heat, air and light to prevent damage.
  • Ensure the medication is out of reach of children.

Important Notes:

  • Always consult your doctor before starting barbiturates.
  • If you experience any side effects or problems, contact your healthcare provider immediately.
  • When traveling, keep your medications with you to avoid emergencies.
  • Follow your doctor’s prescription and advice for safe and effective use.

Barbiturates Vs Benzodiazepines

Barbiturates Benzodiazepines
Barbiturates are a central nervous depressant. They reduce nerve activity that causes muscle relaxation. They may reduce heart rate, breathing, and blood pressure. Benzodiazepines are a class of drugs which can treat a range of conditions. Doctors often prescribe it to treat anxiety, seizures, and insomnia.
Barbiturates are occasionally used by the doctors for treating the following conditions:

  • Seizure disorder (Epilepsy)
  • Increased pressure in the skull
  • Severe trauma in the skull
Benzodiazepines affect the activity of neurons that cause stress and anxiety reactions. The medication is used for the treatment for:

  • Insomnia
  • Generalized disorder of anxiety
  • Disorder of social anxiety
  • Convulsions, such as epilepsy
  • Disorder of Panic
Some of the common side effects of Barbiturates are:

  • Drowsiness
  • Headache
  • Low Blood Pressure
  • Nausea
Some of the common side effects of Benzodiazepines are:

  • Sedation
  • Dizziness
  • Weakness
  • Unsteadiness

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