Short & Long-Term Effects of Diazepam Abuse

Diazepam is a prescription medication in the benzodiazepine class that’s commonly used to treat anxiety, muscle spasms, seizures, and symptoms of alcohol withdrawal. It works by calming your central nervous system and brain activity, helping you feel more relaxed.1

When you use diazepam as prescribed, it can be effective and helpful. But if you misuse it or take it for longer than recommended, it can lead to dependence and the effects of Valium addiction. Over time, this can affect both your physical and mental health.1

If you or a loved one are struggling with diazepam addiction and need help, contact our Kansas City addiction treatment center today. 

Short-Term Effects of Diazepam

Diazepam (Valium), like many prescription medications, can cause side effects, even when you take it as directed. Because it affects your central nervous system, some of the short-term effects of diazepam relate to how your body and brain respond to its calming properties.1

Common side effects of diazepam may include1:

• Drowsiness or fatigue
• Dizziness or lightheadedness
• Confusion or trouble concentrating
• Loss of coordination or unsteadiness
• Slurred speech
• Headache
• Nausea
• Depression

These diazepam side effects can become more severe if you misuse diazepam, such as taking higher doses, using it more frequently than prescribed, or combining it with other substances. Effects of diazepam abuse may include1,2:

• Memory problems or blackouts
• Slowed breathing
• Impaired judgment and risky behavior
• Increased tolerance and physical dependence
• Withdrawal symptoms when stopping use
• Depression or mood changes
• Higher risk of overdose

The effects of Valium abuse can significantly increase your risk of serious physical and mental health complications. This is especially true when combined with other medicines or illicit drugs.2

Long-Term Effects of Diazepam

Diazepam can be helpful when you use it as prescribed, but the long-term effects of diazepam misuse can lead to serious consequences. Over time, your body can start to rely on it to feel normal. These long-term effects can make it difficult to stop.1,2,3

The long-term effects of diazepam abuse that you may experience include2,3:

• Physical dependence and addiction
• Severe withdrawal symptoms
• Increased tolerance, requiring higher doses to achieve the same effects
• Memory problems and cognitive impairment
• Drowsiness, slowed reaction time, and impaired coordination that increase the risk of falls and injuries
• Anxiety, depression, or other mood changes
• Sleep disturbances or insomnia, particularly during withdrawal
• Suicidal thoughts or behaviors
• A higher risk of overdose, especially when combined with opioids, alcohol, or other central nervous system depressants

Developing a substance use disorder can interfere with how you function daily. According to the Official Journal of the World Psychiatric Association (WPA), you meet the criteria for the disorder when your use prevents you from fulfilling responsibilities at work, home, school, or socially. A few other criteria include avoiding important activities to use, spending most of your time engaged in seeking or using the drug, and desiring to quit but can’t.4

Other Risks of Diazepam Misuse

Valium side effects can become especially dangerous when you mix the drug with other substances. Combination misuse is one of the most common causes of fatal overdoses because your body may not be able to maintain normal breathing or other vital functions.1,2,3

When it is combined with different substances, you may experience other health risks of diazepam:

• Other benzodiazepines: Extreme sedation, confusion, poor coordination, and a higher risk of diazepam overdose2
• Opioids: Severe respiratory depression, unconsciousness, and life-threatening overdose2
• Alcohol: extreme drowsiness, slowed breathing, impaired judgment, and increased risk of blackouts or death5

Mixing it with stimulant drugs like cocaine or methamphetamine can also lead to diazepam risks, even though the effects are different. Stimulants speed up your system while diazepam slows it down, which can put extra strain on your heart and brain.6

Diazepam (Valium) Overdose Symptoms

Diazepam overdose symptoms can appear when you take more than your body can safely handle. Diazepam overdose signs may include7:

• Extreme drowsiness or inability to stay awake
• Confusion or disorientation
• Slurred speech
• Poor coordination or loss of balance
• Weakness or limpness
• Vision problems
• Bluish lips or fingernails
• Slow, shallow, or stopped breathing
• Rapid eye movements
• Tremors
• Reduced heart rate
• Unresponsiveness or inability to wake up
• Loss of consciousness or coma

If you suspect diazepam dangers, like an overdose, it’s critical to call 911 right away. Stay with them until help arrives, keep them as safe and comfortable as possible, and try to keep them awake and breathing if you can.

Diazepam Withdrawal Symptoms and Treatment

Valium effects, such as dependence, can develop when your body becomes used to the drug over time. If you suddenly stop taking it or significantly reduce your dose, you may experience withdrawal symptoms. With diazepam and other benzodiazepines, withdrawal can be especially serious and sometimes dangerous, so symptoms should never be ignored.2,3

Withdrawal occurs because your brain has adapted to the calming effects of diazepam, and it takes time for your nervous system to readjust. In some cases, withdrawal can become severe and may require medical support if they become life-threatening.3

Withdrawal symptoms may include3:

• Excitability
• Anxiety
• Nightmares
• Insomnia
• Panic attacks
• Depression
• Paranoid thoughts
• Hallucinations
• Delirium
• Headaches
• Seizures
• Pain or stiffness
• Weakness or fatigue
• Muscle twitches
• Gastrointestinal problems

If you’re dependent on diazepam, medical detox or pharmacological options can help you safely stop using it under professional supervision.3 Because withdrawal can be unpredictable and, in some cases, dangerous, detox programs are designed to monitor your symptoms, keep you safe, and gradually support your body as it adjusts without the medication.

After detox, ongoing treatment can play an important role in long-term recovery. This may include therapy, counseling, and structured support programs that help you understand triggers, build coping skills, and reduce the risk of relapse.

While there isn’t a specific medication-assisted treatment (MAT) protocol for the effects of diazepam addiction like there is for some other substances, clinicians may use carefully managed tapering strategies and other supportive medications when appropriate to help ease withdrawal and support stability over time.8

Diazepam (Valium) Addiction Treatment in Kansas City

Getting started with treatment at Empowered Recovery Kansas City means you don’t have to figure everything out on your own. Our rehab programs may include medical detox support, outpatient care, and ongoing recovery planning. Our programs can help you get the level of care needed, wherever you are in the recovery journey.

Our rehab admissions team is here to guide you through the process and help you choose the program that best fits your needs. We can also walk you through paying for addiction treatment and using insurance to pay for rehab. We help you focus on getting help instead of worrying about logistics.

When you’re ready, call us or verify your insurance benefits online to get started. We’re here to help you take the next step toward recovery.

References

1. Dhaliwal JS, Rosani A, Saadabadi A. (2023). Diazepam. Retrieved on 4/12/2026 from https://www.ncbi.nlm.nih.gov/books/NBK537022/.
2. National Library of Medicine. (2025). Valium. Retrieved on 4/13/2026 from https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=554baee5-b171-4452-a50a-41a0946f956c.
3. Edinoff, A. N., Nix, C. A., Hollier, J., Sagrera, C. E., Delacroix, B. M., Abubakar, T., Cornett, E. M., Kaye, A. M., & Kaye, A. D. (2021). Benzodiazepines: Uses, Dangers, and Clinical Considerations. Neurology international, 13(4), 594–607. https://doi.org/10.3390/neurolint13040059. Retrieved on 4/13/2026 from https://pmc.ncbi.nlm.nih.gov/articles/PMC8629021/#sec3-neurolint-13-00059.
4. Volkow, N. D., & Blanco, C. (2023). Substance use disorders: a comprehensive update of classification, epidemiology, neurobiology, clinical aspects, treatment and prevention. World psychiatry: official journal of the World Psychiatric Association (WPA), 22(2), 203–229. https://doi.org/10.1002/wps.21073. Retrieved on 4/13/2026 from https://pmc.ncbi.nlm.nih.gov/articles/PMC10168177/#wps21073-sec-0002.
5. National Institute on Alcohol Abuse and Alcoholism. (2025). Alcohol-medication interactions: Potentially dangerous mixes. Retrieved on 4/13/2026 from https://www.niaaa.nih.gov/health-professionals-communities/core-resource-on-alcohol/alcohol-medication-interactions-potentially-dangerous-mixes.
6. Damiri, B., Mousa, A., & Helou, M. A. (2023). Amphetamine-type stimulant (ATS) use and association with concurrent use of benzodiazepines, barbiturates and THC in the West Bank among male Palestinians: a cross-sectional study. BMJ public health, 1(1), e000537. https://doi.org/10.1136/bmjph-2023-000537. Retrieved on 4/13/2026 from https://pmc.ncbi.nlm.nih.gov/articles/PMC11812734/.
7. MedlinePlus. (2023). Diazepam overdose. Retrieved on 4/13/2026 from https://medlineplus.gov/ency/article/002629.htm.
8. National Institute on Drug Abuse. (2020). Treatment and recovery. Retrieved on 4/13/2026 from https://nida.nih.gov/publications/drugs-brains-behavior-science-addiction/treatment-recovery.