Is My Loved One Using Drugs Or Alcohol?

Clinically Reviewed by:

Dr. Michael Kane

Dr. Michael Kane, MD, CAP

Chief Medical Director

Parents, family members, and friends are in the best position to determine if a loved one is using drugs or alcohol.  If you have landed on this page due to a similar concern, we’re here to help. Early identification and intervention is crucial, and the information provided below is meant to start the process.

Each person responds to drugs differently. Factors that influence the unique reaction include:

  • Biological Sex
  • Age
  • Weight
  • Drug-Drug Interactions
  • Genetics
  • Other physical or mental health conditions

It’s important that family members and loved ones stay open-minded about potential signs or symptoms of use.  Keep in mind that these can be related to other illnesses or mental health problems. However, with drug use, you will typically notice a drastic change as the use becomes more serious.  Additionally, there are unique signs and symptoms related to drug use that are hard to miss.

    Here are some general physical signs and symptoms that your loved one may be using drugs:

    • Dilated or pin-point pupils, bloodshot eyes
    • Changes in hygiene
    • Skin sores
    • Drastic weight loss or weight gain
    • Increased hunger or decreased appetite
    • Increased psychomotor agitation (i.e. twitching, pacing, scratching)
    • Grinding teeth, clenched jaw
    • Nose bleeds
    • Infections, particularly at injection sites

    Behavioral Signs:

    • A shift in social circles or friends
    • Increased dishonesty or “secrets”
    • Leaving home at all hours of the day and night, without somewhere specific to be
    • Not coming home on time, or at all
    • Neglecting responsibilities
    • Asking for money
    • Stealing property or money
    • Increased discipline at work or job loss
    • Isolation
    • Absenteeism or job loss

    It can be very hard to identify whether or not a loved one’s behavior is due to drug use. The following signs are to help identify if your loved one is using a specific substance. Know the above general signs and more specific signs can be helpful.

    Below is a list of different substances and warning signs of their use. If you are already aware of a loved ones use and are looking for help, contact us today.

    Cannabis or “Marijuana” Use Signs

    Feelings of euphoria

    Poor coordination and forgetfulness

    Binge eating episodes

    Paranoia or suspicious behavior

    Mellow or relaxed demeanor

    Paraphernalia- bongs, pipes, etc.

    Alcohol Use Signs

    Poor coordination

    Smells of alcohol

    Hides bottles or their drinking

    Poor memory from blacking out

    Mood swings

    Bruises from falls, or other injuries

    Drinks alone, or first thing in the morning (common, but not required)

    Sleep disturbances

    Stimulant Use Signs- Prescription Stimulants (Adderall), Methamphetamine, Cocaine

    Frequent behavior changes

    Aggression, hostility, or reactivity

    Increased energy

    Decreased appetite

    Mood swings- depressed mood or over-sleeping may occur during the “come down”

    Nose bleeds or nasal congestion if the drug is being snorted

    Increased sex drive, or decreased sex drive with chronic use

    “Track” marks on arms, legs, feet, neck, etc.

    Skin picking or open sores

    Abscesses or infections

    Benzodiazepines or Sedatives (Xanax, Klonopin, Ativan)

    Drowsiness

    Appears drunk

    Uninhibited

    Confusion

    Depressed mood or behavior

    Problems with memory due to blackouts that occur under the influence

    Over-sleeping

    Hallucinogens (LSD/Acid, PCP, Shrooms)

    Behavior can vary with these substances, depending on the “trip,” particularly with LSD.

    Some people may appear relaxed, while others are terrified or erratic.

    Visual or auditory hallucinations

    Impulsive and risky behavior

    Difficulty differentiating between reality and hallucination

    Drowsy or agitated behavior

    Opioids or “Narcotics” like Prescription Painkillers, Heroin, or Fentanyl

    Sedation- may “nod off”

    Memory problems

    Poor concentration

    Lethargic or sleepy

    Mood swing

    Constipation or GI issues

    “Track” marks on arms, legs, feet, neck, etc.

    Skin picking or open sores

    Abscesses or infections

    We understand that worrying and trying to identify symptoms or signs in a family member can be a stressful process. We try to simplify the process of getting help as much as possible. It all starts with a simple phone call. Oftentimes, families find that the support our staff offers makes all the difference.

    Recognizing Addiction Signs: Help at Indiana Center for Recovery

    Recognizing signs of drug or alcohol use in a loved one can be stressful and confusing. If you’re noticing physical changes, behavioral shifts, or other warning signs suggesting substance use, Indiana Center for Recovery offers support for both of you during this difficult time.

    Our family programs provide education, support, and guidance to help you understand addiction, recognize warning signs, and learn how to effectively support your loved one while taking care of yourself. When they’re ready for help, our substance use treatment offers detox, therapy, and residential programs to address drug and alcohol use and begin their recovery journey.

    Find support at our treatment centers across Indiana or call (844) 650-0064 today to speak with admissions counselors who can guide you through getting your loved one the help they need.

    Updated: November 4, 2025