15.3 Alcohol Use Disorder Drugs

4 min readjune 18, 2024

is a complex condition affecting brain chemistry and behavior. Chronic exposure leads to , , and , causing physical and psychological symptoms that can be challenging to overcome.

Treatment for alcohol addiction involves medications like , naltrexone, and . These drugs work by discouraging alcohol use, reducing cravings, and modulating neurotransmitters. Combining pharmacological approaches with behavioral therapies and support systems offers the best chance for recovery.

Alcohol Use Disorder

Biological mechanisms of alcohol addiction

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  • Neurotransmitter imbalances lead to changes in brain function
    • Increased release in the reward pathway reinforces alcohol-seeking behavior ()
    • Decreased activity reduces inhibition and increases impulsivity ()
    • Increased activity contributes to alcohol (hyperexcitability)
  • occur with chronic alcohol exposure
    • Brain structure and function are altered, leading to tolerance and dependence
      • Tolerance develops, requiring higher doses to achieve desired effects
      • Dependence occurs, causing withdrawal symptoms when alcohol use is stopped (, )

Signs and symptoms of alcohol addiction

  • Behavioral changes indicate problematic alcohol use
    • Drinking larger amounts or for longer than intended ()
    • Unsuccessful attempts to cut down or control alcohol use despite negative consequences
    • Neglecting responsibilities due to alcohol use (work, school, relationships)
  • Physical symptoms reveal the body's adaptation to alcohol
    • Tolerance necessitates increased amounts of alcohol to achieve desired effects
    • Withdrawal occurs when alcohol use is stopped, causing tremors, sweating, nausea, and anxiety
  • Psychological symptoms reflect the mental impact of addiction
    • Craving or strong desire to drink alcohol persists despite adverse outcomes
    • Continued alcohol use despite negative consequences (legal issues, health problems)

Pharmacology of alcohol addiction treatments

  • Disulfiram discourages alcohol use through aversive therapy
    • Inhibits , causing accumulation and unpleasant symptoms when alcohol is consumed (flushing, nausea, headache)
  • Naltrexone reduces craving and relapse risk by targeting opioid receptors
    • blocks the rewarding effects of alcohol ()
  • Acamprosate helps maintain by modulating neurotransmitter activity
    • Modulates GABA and glutamate activity to reduce alcohol withdrawal symptoms and promote abstinence ()

Side effects of addiction medications

  • Disulfiram may cause adverse reactions
    • Headache, drowsiness, metallic taste, skin rash are common side effects
    • Interactions with alcohol, , and require caution
  • Naltrexone may lead to gastrointestinal distress
    • Nausea, vomiting, dizziness, headache are potential side effects
    • Interactions with opioids and should be avoided
  • Acamprosate has a relatively mild side effect profile
    • Diarrhea, nausea, abdominal pain may occur
    • Minimal drug interactions make it a safer choice for some patients

Nursing considerations for addiction treatments

  • Assess for contraindications and precautions before administering medications
    • Pregnancy, liver disease, kidney disease may preclude certain treatments
  • Monitor for side effects and adverse reactions during therapy
    • Provide supportive care and symptom management as needed
  • Encourage adherence to medication regimen for optimal outcomes
    • Educate on the importance of consistent use and proper administration
  • Promote lifestyle changes and support systems to enhance recovery
    • Refer to counseling and support groups for comprehensive care

Patient education for addiction medications

  • Explain the purpose and mechanism of action of the prescribed medication
    • Disulfiram: Discourages alcohol use through aversive effects
    • Naltrexone: Reduces craving and relapse risk by blocking rewarding effects
    • Acamprosate: Helps maintain abstinence by modulating neurotransmitter activity
  • Discuss potential side effects and how to manage them
    • Provide strategies for coping with common adverse reactions (rest, hydration)
  • Emphasize the importance of avoiding alcohol while taking the medication
    • Highlight the risks of combining alcohol with addiction treatments ()
  • Provide instructions on proper dosing and administration
    • Ensure patient understanding of medication schedule and any special instructions
  • Encourage open communication with healthcare providers about treatment progress and concerns
    • Regularly assess patient response to therapy and adjust as needed
  • Offer resources for additional support, such as counseling and support groups
    • Recognize the value of comprehensive care in addiction recovery

Effectiveness of pharmacological approaches

  • Disulfiram is most effective in highly motivated individuals
    • Requires close monitoring due to potential adverse reactions ()
  • Naltrexone reduces craving and relapse risk, particularly when combined with behavioral therapies
    • and enhance outcomes
  • Acamprosate helps maintain abstinence and reduce withdrawal symptoms
    • Most effective when initiated early in the treatment process (first 7 days of abstinence)
  • Combination therapy using multiple medications with different mechanisms of action may improve treatment outcomes
    • Tailoring medication choice to individual patient needs and characteristics is crucial (genetics, comorbidities)

Comprehensive Approach to Alcohol Use Disorder Treatment

  • is often the first step in treating severe cases of
    • Medically supervised withdrawal management to ensure safety and comfort
  • Abstinence is the primary goal of alcohol use disorder treatment
    • Complete cessation of alcohol consumption to prevent further health complications
  • strategies are crucial for long-term recovery
    • Identifying triggers, developing coping skills, and ongoing support to maintain sobriety

Key Terms to Review (48)

Abstinence: Abstinence refers to the voluntary avoidance or complete cessation of a particular behavior or substance, especially in the context of addiction recovery and substance abuse treatment. It is a central concept in the management of Alcohol Use Disorder (AUD) and other drug-related disorders.
Acamprosate: Acamprosate is a medication primarily used in the treatment of alcohol use disorder. It works by modulating the neurotransmitter systems in the brain to help reduce the symptoms of alcohol withdrawal and cravings, thereby supporting abstinence from alcohol consumption.
Acetaldehyde: Acetaldehyde is a colorless, flammable liquid that is an important intermediate in the metabolism of ethanol. It is produced as a byproduct when the body breaks down and metabolizes alcohol, and it plays a key role in the development of alcohol use disorder.
Alcohol: Alcohol is a central nervous system depressant that is commonly consumed in beverages. It can lead to dependency and various health issues when used excessively.
Alcohol Use Disorder: Alcohol use disorder (AUD) is a chronic and relapsing condition characterized by the compulsive use of alcohol, loss of control over alcohol intake, and the development of negative emotional states when not using alcohol. It is a serious mental health condition that can have significant impacts on an individual's physical, mental, and social well-being.
Alcoholism: Alcoholism, also known as alcohol use disorder, is a chronic and progressive condition characterized by a compulsive and uncontrolled consumption of alcoholic beverages, despite the negative consequences it has on an individual's physical, mental, and social well-being. It is a complex disorder that involves a combination of genetic, environmental, and psychological factors.
Aldehyde Dehydrogenase: Aldehyde dehydrogenase (ALDH) is a family of enzymes that catalyze the oxidation of aldehydes to carboxylic acids. This enzyme plays a crucial role in the metabolism of alcohol, converting the toxic acetaldehyde intermediate into the less harmful acetic acid. Understanding the function of ALDH is essential in the context of alcohol use disorder drugs.
Antabuse: Antabuse, also known as disulfiram, is a medication used to treat chronic alcoholism by producing an acute sensitivity to ethanol. It works by inhibiting the enzyme acetaldehyde dehydrogenase, leading to unpleasant effects when alcohol is consumed.
Asian people: Asian people are individuals originating from the continent of Asia, encompassing diverse ethnicities and cultures. In medical contexts, understanding genetic, dietary, and cultural differences is crucial for effective treatment.
Ativan: Ativan, also known as lorazepam, is a benzodiazepine medication commonly used to treat anxiety disorders and seizure emergencies. It has sedative, anxiolytic, and anticonvulsant properties.
Binge Drinking: Binge drinking is a pattern of excessive alcohol consumption that involves drinking a large quantity of alcohol in a short period of time, typically defined as consuming four or more drinks for women and five or more drinks for men within a two-hour timeframe. This behavior is associated with increased risks of alcohol-related problems, including intoxication, injury, and the development of alcohol use disorder.
Chlordiazepoxide: Chlordiazepoxide is a benzodiazepine used primarily for the treatment of anxiety disorders and alcohol withdrawal symptoms. It works by enhancing the activity of GABA, a neurotransmitter that inhibits brain activity.
Clinical Institute Withdrawal Assessment for Alcohol-Revised (CIWA-Ar): The Clinical Institute Withdrawal Assessment for Alcohol-Revised (CIWA-Ar) is a tool used by healthcare professionals to assess and manage alcohol withdrawal symptoms. It helps determine the severity of withdrawal and guides treatment decisions.
Cognitive-behavioral therapy (CBT): Cognitive-behavioral therapy (CBT) is a form of psychotherapy that focuses on modifying an individual's thought patterns and behaviors to improve their emotional and mental well-being. It is a widely used approach in the treatment of various mental health conditions, including alcohol use disorder.
Delirium tremens: Delirium tremens (DTs) is a severe form of alcohol withdrawal that can cause sudden and severe mental or nervous system changes. It typically occurs 48-96 hours after the last drink in individuals with chronic alcoholism.
Dependence: Dependence refers to a state of physiological or psychological reliance on a substance, where the individual experiences withdrawal symptoms upon discontinuation of use. This term is particularly relevant in the context of central nervous system (CNS) stimulants, opioid use disorder drugs, and alcohol use disorder drugs, as these substances can lead to the development of dependence in individuals who use them regularly.
Detoxification: Detoxification is the physiological or medicinal removal of toxic substances from the body. It is a crucial process that helps the body eliminate harmful compounds and maintain homeostasis, especially in the context of substance use disorders and alcohol use disorder.
Disulfiram: Disulfiram is a medication used to support the treatment of chronic alcoholism by producing an acute sensitivity to ethanol. It works by inhibiting the enzyme acetaldehyde dehydrogenase, leading to unpleasant effects when alcohol is consumed.
Disulfiram Reaction: The disulfiram reaction is a severe adverse reaction that can occur when someone who has consumed alcohol recently takes the medication disulfiram, a drug used to treat alcohol use disorder. This reaction is characterized by a range of unpleasant physical symptoms that serve as a deterrent to further alcohol consumption.
Dopamine: Dopamine is a neurotransmitter that plays a crucial role in the brain's reward and pleasure centers, as well as in the regulation of various physiological processes. It is involved in a wide range of functions, from motor control and cognition to emotional and behavioral responses, making it a key player in understanding and treating numerous nervous system disorders.
Downregulated: Downregulated refers to the process by which a cell decreases the quantity of a cellular component, such as a protein or RNA, in response to an external variable. This often occurs as a way for cells to adapt to persistent exposure to certain substances.
Ethanol: Ethanol is a type of alcohol found in alcoholic beverages and used in medical and industrial applications. In the context of pharmacology, it is relevant due to its effects on the central nervous system and potential for abuse.
First-generation antipsychotics: First-generation antipsychotics, also known as typical antipsychotics, are a class of drugs used primarily to manage psychosis, particularly in schizophrenia. They work mainly by blocking dopamine receptors in the brain.
GABA: GABA (Gamma-Aminobutyric Acid) is the primary inhibitory neurotransmitter in the central nervous system. It plays a crucial role in regulating neuronal excitability and has been associated with various neurological and psychiatric disorders, including Parkinson's disease, epilepsy, mood disorders, and alcohol use disorder.
GABA structural analogs: GABA structural analogs are compounds that mimic the structure of gamma-aminobutyric acid (GABA), a neurotransmitter. These analogs are used to modulate neural activity and are often employed in the treatment of neurological conditions such as multiple sclerosis.
Glutamate: Glutamate is the principal excitatory neurotransmitter in the mammalian central nervous system, playing a crucial role in various neurological processes and disorders affecting the brain and nervous system.
Haldol: Haldol (haloperidol) is a first-generation antipsychotic medication primarily used to treat schizophrenia and acute psychotic states. It works by blocking dopamine receptors in the brain.
Haloperidol: Haloperidol is a first-generation antipsychotic used primarily to treat schizophrenia and acute psychosis. It works by blocking dopamine receptors in the brain.
Hepatotoxicity: Hepatotoxicity is the occurrence of liver damage due to exposure to certain substances, including drugs. It can lead to serious health complications and requires careful monitoring.
Hepatotoxicity: Hepatotoxicity refers to the potential for certain drugs, chemicals, or other substances to cause liver damage or dysfunction. It is a critical consideration in the development and use of various medications and treatments.
Librium: Librium (chlordiazepoxide) is a benzodiazepine used primarily for the management of alcohol withdrawal symptoms. It works by calming the central nervous system to reduce anxiety and prevent seizures during detoxification.
Lorazepam: Lorazepam is a benzodiazepine used primarily for its anxiolytic, sedative, and anticonvulsant effects. It is commonly prescribed for anxiety disorders, epilepsy, and as an adjunct in acute alcohol withdrawal.
Metronidazole: Metronidazole is a nitroimidazole antibiotic and antiparasitic medication used to treat a variety of infections, including sexually transmitted infections, parasitic infections, and alcohol use disorder. It works by disrupting the DNA of anaerobic bacteria and protozoa, leading to their death or inhibition of growth.
Motivational Interviewing: Motivational Interviewing is a collaborative, person-centered counseling style that is designed to elicit and strengthen an individual's own motivation for change. It is a goal-oriented approach that focuses on exploring and resolving ambivalence to facilitate behavioral modifications, particularly in the context of healthcare and addiction treatment.
Mu-opioid Receptors: Mu-opioid receptors are a class of opioid receptors found primarily in the central nervous system and gastrointestinal tract. They are the primary target for most clinically used opioid analgesics, such as morphine, and are responsible for the euphoric and analgesic effects of these drugs.
Neuroadaptations: Neuroadaptations refer to the changes that occur in the brain's structure, function, and neurochemistry in response to repeated exposure to drugs or alcohol. These adaptations are a key feature in the development and maintenance of substance use disorders, as they contribute to the transition from casual use to compulsive, uncontrolled use.
Neurotransmitter Imbalances: Neurotransmitter imbalances refer to the disruption in the delicate balance of chemical messengers in the brain that facilitate communication between neurons. These imbalances can contribute to the development and progression of various neurological and psychiatric disorders, including Alcohol Use Disorder.
NMDA Receptors: NMDA (N-methyl-D-aspartate) receptors are a type of ionotropic glutamate receptor that play a crucial role in synaptic transmission and neuroplasticity in the central nervous system. These receptors are particularly important in the context of Alzheimer's disease and alcohol use disorder.
Nucleus Accumbens: The nucleus accumbens is a collection of neurons located in the basal forebrain, which is considered part of the ventral striatum. It plays a crucial role in the brain's reward and motivation systems, influencing behaviors related to drug addiction, alcoholism, and other compulsive disorders.
Opioid Receptor Antagonist: An opioid receptor antagonist is a type of medication that blocks the effects of opioid drugs by binding to and inhibiting opioid receptors in the body, preventing the activation of these receptors by opioid agonists. This action can be used to reverse the effects of opioid overdose and treat opioid use disorder.
Prefrontal Cortex: The prefrontal cortex is the anterior part of the frontal lobe of the brain, involved in a wide range of cognitive functions including decision-making, problem-solving, and impulse control. It plays a crucial role in the context of CNS stimulants, nonstimulants, and alcohol use disorder drugs.
Relapse Prevention: Relapse prevention refers to the strategies and techniques used to help individuals with substance use disorders maintain long-term recovery and prevent a return to problematic substance use. It is a crucial component in the management of various substance use disorders, including opioid, alcohol, and nicotine use disorders.
Seizures: Seizures are sudden, uncontrolled electrical disturbances in the brain that can cause various physical and mental symptoms. They are a key concern in the context of Alcohol Use Disorder Drugs and Xanthines, Leukotriene Modifiers, and Mast Cell Stabilizers, as these substances can potentially trigger or exacerbate seizure activity.
Thioridazine: Thioridazine is an antipsychotic medication primarily used in the treatment of schizophrenia. As a member of the phenothiazine class of drugs, it works by blocking dopamine receptors in the brain, which can help alleviate the positive symptoms of schizophrenia such as hallucinations and delusions.
Tolerance: Tolerance refers to the diminished response to a drug or substance that occurs with repeated exposure, requiring higher doses to achieve the same effect. This phenomenon is observed across various drug classes and substance use disorders, and is a key factor in the development and progression of addiction.
Tremors: Tremors refer to the involuntary, rhythmic shaking or quivering of a body part, often the hands, head, or limbs. This neurological symptom can be associated with various medical conditions and can have different underlying causes.
Warfarin: Warfarin is an anticoagulant medication used to prevent and treat blood clots. It works by inhibiting the production of certain clotting factors, thereby reducing the body's ability to form blood clots. Warfarin is a crucial drug in the context of pharmacology, interdisciplinary teams, nursing practice, drug administration, anticoagulant therapy, and hormonal therapy.
Withdrawal Symptoms: Withdrawal symptoms refer to the physical and psychological disturbances experienced when an individual abruptly stops or reduces the use of a substance they have become dependent on. These symptoms can range from mild discomfort to severe, life-threatening conditions, and they are a hallmark of substance use disorders.
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