They may order drug tests to see how much and how many types of substances are in your body at a time. They may also evaluate prescription drug monitoring program reports (a database of distributed controlled substances). Several factors can contribute to the development of polysubstance use disorder.

Substance use disorder (SUD) is a problematic pattern of substance use that affects your health and well-being. Poly drug addiction requires comprehensive treatment that addresses all areas of life. Medical detox is often the first step, followed by therapy and ongoing support. A tailored treatment plan ensures that all substances and mental health needs are considered.

Mechanisms of Addiction: Acute Drug Effects

• While understanding the scientific risks is vital, seeing the clinical perspective on polysubstance interaction can provide essential context on adverse effects.
• 4 patients were excluded due to missing substance use data; 1 patient was excluded due to missing data on sex.
• Population during the same time frame of these studies was 15.0% – 26.0% (Giovino et al., 1994; Jamal et al., 2016).
• Finally, tobacco use in our study was limited to use of any tobacco product in the past-year.

Per the Centers for Disease Control and Prevention (CDC),23 mixing drugs is never safe because the effects from combining drugs may be stronger and more unpredictable, even deadly, than one drug alone. Patients should be counseled on these risks and there should be ongoing monitoring for substance use. The decision to mix cocaine and ketamine introduces profoundly dangerous variables into substance use, placing severe strain on the cardiovascular system while creating unpredictable psychological states.

Understanding Poly-Substance Use Disorder: DSM-5 Criteria and Treatment

In the short term, people may experience blackouts, breathing issues, or heart problems. Combining drugs also increases confusion, poor decision-making, and risky behaviors. The stimulant hides alcohol’s sedative effects, which leads people to drink more, strain their hearts, and increase their overdose risk. However, they may not be particular about which substance use disorder additional substances they mix with it.

Follow us on Social Media!

In addition, THC and nicotine co-administration exacerbates the somatic symptoms of THC withdrawal (Valjent et al., 2002). However, after repeated nicotine treatment and 2 weeks of drug abstinence, nicotine re-administration attenuates THC-induced decreases in locomotor activity, increases in anxiety measures (when assessed in the elevated-plus maze), and changes in social interaction (Manwell et al., 2019). These findings suggest that nicotine enhances the negative symptoms of THC when administered concurrently or in close temporal proximity. Although nicotine pretreatment enhances the rewarding effects of subthreshold doses of THC (Ponzoni et al., 2019), cocaine pretreatment heightens THC-induced anxiogenic behaviors (Panlilio et al., 2007).

The dangers of polysubstance use

In vitro polydrug exposure to alcohol and nicotine induces a 2.5-fold increase in caspase-3 activation, elevating apoptotic cascades and driving cell death (Ramlochansingh et al., 2011). Interestingly, however, alcohol or nicotine withdrawal-induced neurodegeneration is less severe following co-administration of both drugs (Oliveira-da-Silva et al., 2010), indicating a unique molecular pathology following nicotine and alcohol polydrug use. A unique feature of all potentially addictive drugs is the ability to reinforce the binge/intoxication phase of the addiction cycle via evoked phasic DA release into the NAc, yet the underlying mechanisms vary across drugs (Figure 4; Volkow and Boyle, 2018).

Polysubstance Use Disorder

• Additionally, progressive ratio tests for a single drug or drug combinations to study motivation (Greenwald et al., 2010), and delay-discounting rates for money and drug rewards to study decision-making, (Strickland et al., 2019) have also been performed.
• Polysubstance use disorder can be treated through outpatient care that fits into daily life.
• In addition, nearly one-third of overdose deaths involved both psychostimulants and opioids, such as heroin and fentanyl (Kariisa et al., 2019).

Addressing Underlying Mental Health Issues Successful recovery from poly substance use disorder requires addressing underlying mental health issues. By identifying and treating co-occurring mental health conditions, individuals can experience improved overall well-being and better outcomes in their recovery journey. According to the Substance Abuse and Mental Health Services Administration (SAMHSA), approximately 1 in 10 individuals in the United States struggles with a substance use disorder involving multiple substances. The prevalence is even higher among certain populations, such as individuals with co-occurring mental health disorders or those with a history of trauma. Treating polysubstance use disorder is complex and often requires a multifaceted approach. Treatment typically includes detoxification, cognitive-behavioral therapy, counseling, support groups, and sometimes medication-assisted treatment.

• Learning more about the effects of each substance on the human body can help you understand why they’re unsafe.
• Using more than one substance at the same time can have complex and unpredictable effects and may increase the risk of overdose and death.
• Notably, some polydrug combinations that include psychostimulants have divergent and opposing effects on the C-BG-T circuit.
• Through medical detox, therapy, and ongoing care, individuals can break free from poly addiction and rebuild a healthier future.
• Congruent with this practice, research shows that tobacco users are most often identified in a primary care setting (Pine-Abata et al., 2013).
• All psychostimulants directly enhance striatal DA release via disruption of dopamine transporter (DAT) activity (Pontieri et al., 1995), though they do so via distinct mechanisms.

This visibility gap means overdose deaths involving BTMPS may be attributed solely to fentanyl, masking the true complexity of the drug supply. Researchers analyzing samples from nine U.S. cities found BTMPS in 35% of fentanyl products, with an average concentration of 8.6% by mass. Instead, laboratory studies show it blocks calcium channels in the heart, which can cause dangerously low blood pressure and slow heart rate even after naloxone reverses breathing problems. BTMPS, or bis(2,2,6,6-tetramethyl-4-piperidyl) sebacate, is a plastic stabilizer never intended for human use. Community drug-checking programs first detected it in fentanyl samples in mid-2024, and forensic laboratories quickly confirmed its presence in at least 22 states. Overdose deaths in metro Atlanta increasingly involve unexpected adulterants that complicate emergency care.

Effective intervention requires integrated pharmacological management and extensive behavioral therapy targeting both stimulant and dissociative use patterns. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Eleanor Health’s therapists and providers support both substance use recovery and co-occurring mental health needs as part of integrated care. What’s clear is that addressing mental health alongside substance use improves outcomes for many people.

One study utilizing national survey data, however, did not find differences between frequency of tobacco use within the past year and odds of opioid misuse or OUD (Zale et al., 2015). Despite these limitations, our analysis represents an important step to better understand the association between tobacco use and opioid misuse in primary care. Existing data on tobacco and opioid misuse have largely been drawn from survey samples of the general population.