Substance use is a complex issue that affects not only individuals but also their families and the wider community. In South Africa, substance use remains a growing concern, with alcohol, cannabis, and methamphetamine (commonly known as “tik”) being some of the most widely used substances.
The effects of substance use extend far beyond the immediate physical impact, influencing mental health, relationships, and societal well-being. Understanding these effects is crucial in fostering empathy and offering the necessary support for those struggling with substance use.

Substance use can have profound effects on mental health, often exacerbating or even triggering psychiatric disorders. Prolonged use of drugs such as methamphetamine and cocaine can lead to paranoia, anxiety, and psychosis.
For example, tik, which is widely used in the Western Cape, affects the brain’s dopamine system, leading to intense cravings and long-term neurological damage. Individuals using tik often experience severe mood swings, aggression, and cognitive impairment, making it difficult to maintain employment or relationships.

Depression and anxiety are also common among substance users. Alcohol, although widely accepted socially, is a depressant that alters brain chemistry, leading to mood instability and an increased risk of suicidal thoughts. According to the South African Depression and Anxiety Group (SADAG), individuals who struggle with alcohol dependence are more likely to suffer from major depressive disorder.

Substance use affects nearly every organ in the body. The extent of the damage depends on the type of substance, frequency of use, and overall health of the individual.

  • Liver Damage: Chronic alcohol use can lead to cirrhosis and liver failure, which are major health concerns in South Africa, where alcohol-related illnesses contribute significantly to the burden on the healthcare system.
  • Cardiovascular Problems: Stimulants like cocaine and methamphetamine increase heart rate and blood pressure, which can lead to heart attacks, strokes, and long-term cardiovascular disease.
  • Respiratory Issues: Smoking substances such as cannabis or heroin can lead to chronic lung diseases, including bronchitis and emphysema. The use of nyaope, a dangerous mixture of heroin and other substances, is increasingly common in South African townships and has devastating effects on the respiratory and nervous systems.
  • Weakened Immune System: Drug use compromises the immune system, making individuals more susceptible to infections, including tuberculosis, which remains a significant public health challenge in South Africa.

Substance use does not only affect the individual but also has a ripple effect on loved ones. Families often experience emotional distress, financial strain, and breakdowns in communication.

  • Emotional and Psychological Strain: Family members may experience anxiety, depression, and constant worry about their loved one’s well-being. Parents raising children with substance use disorders often feel helpless and guilty, while children of substance-dependent parents may grow up in unstable environments, leading to long-term emotional trauma.
  • Domestic Violence and Neglect: Alcohol and drug use have been linked to increased domestic violence cases. A study by the South African Police Service found that substance use was a contributing factor in many cases of gender-based violence, further highlighting its destructive impact on families.
  • Financial Burden: The cost of sustaining a substance use habit can drain family finances, leading to debt, poverty, and even homelessness. In some cases, individuals struggling with addiction resort to theft or selling household items to fund their use, causing further strain on relationships.

Communities bear the broader consequences of substance use, from increased crime rates to a weakened workforce.

  • Crime and Violence: Drug-related crimes, including theft, assault, and gang violence, are prevalent in many South African communities. The use of substances like tik and heroin has been linked to gang activity in Cape Town, where drug syndicates operate in marginalized areas, exploiting vulnerable individuals.
  • Economic Cost: Substance use leads to reduced productivity, absenteeism, and job loss. According to the South African Medical Journal, substance use disorders cost the economy billions of rands annually in lost productivity and healthcare expenses.
  • Strain on Healthcare and Social Services: Public healthcare facilities, particularly in underprivileged areas, struggle to cope with the influx of patients experiencing substance-related illnesses. Rehabilitation centres and social support systems remain underfunded, making it difficult for individuals to access the help they need.

Despite the far-reaching effects of substance use, recovery is possible. With the right support, individuals can regain control over their lives and rebuild their relationships and communities.

  • Seeking Professional Help: Therapy and rehabilitation programs offer guidance for those struggling with substance use. If you or a loved one needs support, professional counselling can provide coping strategies and tailored treatment plans.
  • Support Groups: Organizations such as Alcoholics Anonymous (AA), Narcotics Anonymous (NA), and South African-based groups like the South African National Council on Alcoholism and Drug Dependence (SANCA) and the South African Depression and Anxiety Group (SADAG) offer crucial peer support.
  • Community-Based Initiatives: Local outreach programs, including church groups and non-governmental organizations, play a vital role in prevention and recovery efforts.
  • Family and Loved Ones: Healing is a collective process. Families can support recovery by setting boundaries, encouraging treatment, and seeking counselling for themselves. Family support groups like Alanon, Naranon and Tough Love offer support to families.

Substance use affects the mind, body, family, and community, but healing is possible. By understanding its impact, fostering compassion, and seeking support, individuals and communities can work towards recovery and rebuilding stronger, healthier relationships. If you or someone you know is struggling with substance use, remember that help is available, and change is within reach.

For professional guidance and compassionate support, please reach out. You do not have to navigate this journey alone.

  1. South African Community Epidemiology Network on Drug Use (SACENDU). (2023). Monitoring Alcohol and Drug Abuse Trends in South Africa. Retrieved from https://www.samrc.ac.za/sites/default/files/attachments/2023-10/SACENDUBriefPhase53.pdf?utm
  2. Plüddemann, A., & Parry, C. D. H. (2012). Methamphetamine use and associated problems among adolescents in the Western Cape province of South Africa: A need for focused interventions. Retrieved from www.samrc.ac.za/sites/default/files/attachments/2022-07/Methamphetamine.pdf?utm