Psychiatry diagnoses and treats mental health conditions, including depression, anxiety, bipolar disorder, and schizophrenia.
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Substance Use Disorder Symptoms can affect behavior, emotions, physical health, relationships, work, school and daily responsibilities. Substance use disorder is not a matter of weak willpower or poor character. It is a medical and psychiatric condition that can make it difficult for a person to control the use of alcohol, drugs, nicotine, prescription medications or other substances, even when harmful consequences begin to appear. Mayo Clinic describes substance use disorder as a condition that affects the brain and behavior and can lead to continued use despite harm.
At Liv Hospital, symptoms and behavioral signs are evaluated with a nonjudgmental, patient-centered approach. The existing Liv Hospital page also explains that symptoms may appear as behavioral, physical and psychological changes, and that these signs can develop gradually depending on the substance, duration of use and individual health factors.
One of the most important warning signs is difficulty controlling use. A person may plan to use a small amount but end up using more than intended. They may try to stop, reduce or take a break but find that they cannot maintain the change.
This loss of control may appear slowly. At first, the person may explain it as stress relief, social habit or occasional use. Over time, substance use may become harder to limit and may begin to take priority over daily responsibilities.
Craving is a powerful desire or urge to use a substance. It may appear during stress, sadness, boredom, social pressure or after seeing people, places or situations connected with previous use.
Cravings can affect concentration and decision-making. The person may spend a lot of time thinking about when they can use again, how to obtain the substance or how to hide use from others. This mental preoccupation can make ordinary routines feel less important.
Tolerance means the body becomes used to the substance over time. The person may need more of the substance to feel the same effect, or the same amount may no longer feel enough. Liv Hospital’s current page also identifies tolerance as a key mechanism in dependence, where increasing amounts may be used to reach the desired effect.
Signs of tolerance may include:
Tolerance can increase health risks and may make it harder to stop without professional support.
Withdrawal may happen when the person reduces or stops using a substance after regular use. Symptoms vary depending on the substance and the person’s physical condition. Some withdrawal symptoms are uncomfortable, while others can be medically dangerous and require urgent supervision.
Withdrawal signs may include:
Alcohol and benzodiazepine withdrawal can be especially risky and should not be managed alone without medical guidance. Liv Hospital’s page also notes that withdrawal from some substances may require medical supervision because of serious risks such as seizures or delirium.
Behavioral changes are often the first signs noticed by family members, friends or colleagues. The person may become more secretive, defensive or unpredictable. They may hide where they are going, lie about spending, avoid questions or become angry when substance use is mentioned.
Behavioral signs may include:
At Liv Hospital, these signs are evaluated carefully because they may reflect a growing pattern of impaired control rather than isolated poor choices.
Substance use disorder can affect emotional balance and mental health. Some people may become irritable, anxious, depressed, suspicious or emotionally unstable. Others may appear unusually energetic, withdrawn or disconnected depending on the substance and stage of use.
Psychological and cognitive signs may include:
NIDA defines addiction as a chronic, relapsing disorder involving compulsive drug seeking and continued use despite adverse consequences, which helps explain why psychological and behavioral changes can persist even when the person recognizes harm.
Physical symptoms may vary widely depending on the substance used. Some people may lose or gain weight, sleep too much, sleep too little or show changes in grooming and hygiene. Others may have red eyes, changes in pupil size, tremors, poor coordination or unexplained injuries.
Possible physical signs include:
These signs do not confirm substance use disorder on their own, but they can be important when seen together with behavioral and emotional changes.
Substance use disorder often affects trust and communication. The person may withdraw from family, avoid close friends or spend more time with people who normalize substance use. They may miss important events, break promises or become emotionally unavailable.
Relationship problems may include conflict, secrecy, guilt, repeated arguments and loss of trust. Loved ones may feel confused because the person seems different from their usual self. A professional evaluation can help families understand what is happening without relying on blame or confrontation.
As symptoms progress, substance use may begin to interfere with daily functioning. A student may skip classes, miss assignments or lose interest in activities. An adult may arrive late to work, miss deadlines, make mistakes or struggle with professional responsibilities.
Daily-life warning signs may include:
The existing Liv Hospital page also highlights that substance use disorder can affect social interactions, professional performance and daily obligations as the condition progresses.
Some people continue to work, study or meet visible responsibilities while struggling with substance use privately. This can delay recognition because the person may appear successful from the outside.
High-functioning patterns may include secret use, drinking or using alone, using substances as a “reward,” relying on career success to dismiss concerns or maintaining a public image while privately losing control. Even when outside responsibilities seem stable, emotional distress, physical strain and relationship problems may continue to grow.
Professional support is recommended when substance use becomes difficult to control, creates conflict, affects health or interferes with responsibilities. Help is also important if the person experiences withdrawal symptoms, risky behavior, severe mood changes, blackouts, overdose risk or thoughts of self-harm.
Early evaluation can make treatment safer and more effective. A psychiatrist can assess symptoms, substance type, withdrawal risks, co-occurring mental health conditions and the most appropriate next step.
Liv Hospital offers a comprehensive and patient-centered approach to Substance Use Disorder Symptoms and behavioral signs. The psychiatry team evaluates behavioral, physical, emotional and social changes together to understand the full picture.
With experienced specialists and personalized care planning, Liv Hospital helps patients and families move from uncertainty toward professional support. The goal is not judgment, but safety, clarity and a structured path toward recovery.
If substance use is affecting your health, relationships, work, school or sense of control, professional support can help. Substance use disorder is treatable, and early evaluation may reduce risks before the situation becomes more severe.
Contact Liv Hospital to meet with the psychiatry team and receive a personalized evaluation for Substance Use Disorder Symptoms.
Liv Hospital Ulus
Psyc. Burcu Özcan
Psychology
Liv Hospital Ulus
Spec. MD. Kenan Temiz
Psychiatry
Liv Hospital Vadistanbul
Psyc. Selenay Yücel Keleş
Pediatric Psychology
Liv Hospital Bahçeşehir
Assoc. Prof. MD. Osman Yıldırım
Psychiatry
Liv Hospital Bahçeşehir
Clinic. Psy. Aleyna Didem Aydın
Psychology
Liv Hospital Bahçeşehir
Psyc. (Psychologist) Buse Yağmur
Pediatric Psychology
Liv Hospital Bahçeşehir
Psyc. Duygu Başak Gürtekin
Psychology
Liv Hospital Bahçeşehir
Spec. Psyc. Fatmanur Taşkın
Psychology
Liv Hospital Topkapı
Psyc. Merve Tokgöz
Psychology
Liv Hospital Topkapı
Spec. MD. Nesrin Köseoğlu
Pediatric and Adolescent Psychiatry
Liv Hospital Topkapı
Spec. MD. Ömür Günday Toker
Psychiatry
Liv Hospital Ankara
Prof. MD. Ali Bozkurt
Psychiatry
Liv Hospital Ankara
Psyc. Ecem Özcan Tatlıdil
Psychology
Liv Hospital Gaziantep
Psyc. Tuğba Annaç
Psychology
Liv Hospital Gaziantep
Spec. MD. Mustafa Çelik
Psychiatry
Liv Hospital Samsun
Psyc. (Psychologist) Ozan Yazıcı
Psychology
Liv Hospital Samsun
Spec. MD. Arda Kazım Demirkan
Psychiatry
Liv Hospital Samsun
Spec. MD. Mehmet Çevik
Psychiatry
Liv Bona Dea Hospital Bakü
MD. Dr. Nigar Novruzlu
Psychology
Spec. MD. Doğa Sevinçok
Pediatric and Adolescent Psychiatry
Send us all your questions or requests, and our expert team will assist you.
Common symptoms include loss of control, cravings, tolerance, withdrawal, secrecy, mood changes, physical health changes and problems at work, school or home.
Yes. Substance use disorder is not only about daily use. Binge patterns, repeated loss of control or continued use despite harm may also indicate a problem.
Tolerance means the person needs more of the substance to feel the same effect or feels less effect from the same amount used before.
Withdrawal depends on the substance and the person’s health. Alcohol and benzodiazepine withdrawal can be medically dangerous, so professional guidance is important.
Help should be sought when substance use becomes hard to control, causes harm, affects daily life or creates withdrawal, risky behavior, mood changes or relationship problems.
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