Key Takeaways
-
Prescription drug DUIs occur when someone is prescribed a medication, who then poses a danger to others if they continue to drive. These are the same charges as alcohol-related DUIs.
-
Drugs such as Adderall, Xanax, Ambien, Vicodin, and Clarinex can cause severe driving impairment. In addition, they frequently lead to drowsiness, sluggishness, slowed reaction times, and compromised judgment.
-
Law enforcement uses methods like field sobriety tests, drug recognition experts, and blood or urine tests to detect drug impairment in drivers.
-
The consequences of a prescription drug DUI conviction can be quite severe. You may incur thousands of dollars in fines, a suspended driver's license, elevated insurance premiums, and even challenges in obtaining employment.
-
Common defenses against prescription drug DUIs include proving legal medication use, challenging drug test accuracy, and demonstrating a lack of impairment through evidence or expert testimony.
-
Preventing prescription drug DUIs starts with understanding medication side effects, consulting healthcare providers, and opting for alternative transportation when necessary.
It's an all too common misconception that driving under the influence means driving drunk. When they do, you could get a DUI in California after driving under the influence of these top 5 prescription drugs.
Knowing which medications are included in this category is important for keeping yourself, your passengers, and other drivers on the road safe and healthy. This guide highlights the top 5 prescription drugs that can lead to a DUI in California, focusing on their potential effects and legal implications.
Know what to avoid to help ensure you're making smart choices when you're behind the wheel.

What Is A Prescription Drug DUI
Driving under the influence includes more than just alcohol or illegal drugs. In California, a prescription drug DUI is driving under the influence of drugs legally prescribed to you. This type of DUI occurs when the effects of these substances reduce a driver's ability to operate a vehicle safely.
Under the law, it doesn't matter if your medication was legally prescribed or not if you're impaired by a legal prescription or illegal drugs. If a medication affects your ability to drive as a cautious and reasonable person would, you could face a DUI charge. Most importantly, this can occur even if you have no alcohol in your system.
Definition Of Prescription Drug DUI
In California it doesn't matter how legal the medication you're using is — the standard for a DUI is that you're impaired while driving. The state's DUI laws treat prescription drugs the same as alcohol. Instead, they hone in on the impairment caused by the substances regardless of what the substances are.
If your doctor prescribes a tranquilizer or painkiller, have your guard up. If the drug affects your muscle control and reaction time, you may be prosecuted for DUI nonetheless. The law is clear: DUI charges focus on the driver's ability to operate their vehicle safely, not just on alcohol consumption.
Driving while impaired by anything, even something legally prescribed, is a crime.
How Prescription Drugs Impair Driving
Prescription drugs can have a serious impact on driving ability on par with alcohol. Most drugs, including all opioids and many other sedatives, result in drowsiness, slowed reaction times, and impaired judgment. Stimulants prescribed for ADHD might cause one to feel restless or overconfident.
Conversely, tranquilizers can cause a driver to feel sluggish and unable to focus. Cognitive impairments, including confusion and an inability to make fast decisions, can put individuals at risk on roadways. Blurred vision, drowsiness, dizziness, impaired attention, and other residual psychomotor effects are prevalent side effects.
Such impairments increase the likelihood of crashes. They prevent them from being able to respond quickly to a last-minute obstacle, like a pedestrian or a car making an emergency stop.
Why Prescription Drugs Lead To DUI Arrests
As our reliance on prescription drugs increases, prescription drug DUIs are becoming increasingly common. Too many drivers neglect to consider the side effects of their prescriptions. Sometimes they think the meds are fine to drive on simply because they were prescribed.
Law enforcement officers are anecdotally trained to look for signs of impairment like swerving erratic driving or slurred speech. Tools such as the Drug Recognition Expert (DRE) protocol are used to identify drug influence.
This approach has often been criticized for even detecting drugs well after their effects have worn off. In California, law enforcement agencies such as the LAPD have rolled out extensive drug testing protocols to test for impairment during traffic stops.
Common Prescription Drugs That Cause DUIs
DUIs aren't limited to just alcohol. In California, it doesn't matter if a substance is legally prescribed–if it impairs a person's ability to drive safely, they can be charged with a DUI. These charges hold even when the drug in question was legally prescribed or taken as directed.
So today, we're going to discuss five common prescription drugs that can lead to impaired driving. We'll break down how these drugs can impair your driving skills.
Drug |
Effects On Driving |
Common Side Effects |
Adderall |
Can cause recklessness and difficulty focusing |
Agitation, nervousness, and exhaustion after effects wear off |
Xanax |
Impairs alertness creates excessive calmness |
Drowsiness, slowed reaction times |
Ambien |
This may lead to "sleep-driving" and confusion |
Drowsiness, memory impairment, disorientation |
Vicodin |
Causes dizziness and reduced mental clarity |
Lightheadedness, drowsiness, sedation |
Clarinex |
Reduces attentiveness and alertness while driving |
Fatigue, drowsiness |
1. Painkillers And Driving Impairment
Opioid painkillers such as Vicodin are widely known for their powerful sedative effects. They're very effective at managing pain, but they frequently make patients feel dizzy, and drowsy and affect their decision-making ability.
These effects can impair a driver's ability to remain alert at the wheel, particularly on long or high-pressure commutes. People who are on painkillers have trouble doing basic things. Maintaining their lane or quickly responding to an unexpected shift in traffic can be a daunting task for them.
Painkillers are the most commonly prescribed drugs after surgeries and serious injuries, and for chronic pain. That widespread use has fueled an increase in DUI cases throughout California.
2. Anti-Anxiety Medications And Risks
Medications including Xanax, often prescribed for anxiety, work to sedate the nervous system. This calming effect can numb the senses required for safe driving.
They might create a false sense of relaxation, slow reaction to dangers, or even sleep while driving. Thousands of Americans overestimate the effect of these medications, thinking it is still safe to drive shortly after taking them.
Sadly, that misplaced sense of security is creating deadly results. That's why it's important to know exactly how anti-anxiety drugs will impact your body before getting behind the wheel.
3. Antidepressants And Impaired Driving
Most antidepressants don't significantly impair one's driving capabilities. Some, especially those that are sedating, can lead to drowsiness and impaired cognitive function.
For example, while taking tricyclic antidepressants increases the risk of impaired driving, taking selective serotonin reuptake inhibitors (SSRIs) does not. Combining antidepressants with other drugs can increase their potency, further impairing coordination and concentration.
Knowing about these possible interactions is essential to ensuring your safety while on the road.
4. Sleeping Pills And Driving Safety
Sleeping pills such as Ambien are well known for their lingering effects. They can result in a dangerous occurrence known as “sleep-driving,” where people drive a vehicle in their sleep, without conscious awareness of their actions.
Even if sleep driving was not a factor, the drowsiness and disorientation from sleeping pills can remain hours after waking up. To be safe, experts suggest waiting to drive until the medication has fully worn off.
A slight level of drowsiness is enough to decrease your reaction times and affect your judgment abilities.
5. ADHD Medications And DUI Risks
Stimulant medications such as Adderall are commonly prescribed to help people with ADHD concentrate and focus more effectively. These drugs can just as easily make users agitated, restless, and more prone to dangerous behavior behind the wheel.
When the stimulant effects wear off, extreme fatigue may follow, adding another layer of impairment to driving. Prescription drugs such as Adderall can stay in your system for several days.
It's very important to control their use to avoid involuntary impairment. Misusing ADHD medications, like taking a higher dose than prescribed, can increase these risks.
Across the country, and especially in California, driving under the influence of any drug is prohibited. This is true for both illegal drugs and prescription medications.
Even if your blood alcohol content (BAC) is 0.00%, you can still face DUI charges if a drug has impaired your driving ability.
How Law Enforcement Detects Drug Impairment
When it comes to identifying drug impairment in drivers, law enforcement relies on a mix of observation, field sobriety tests, and specialized expertise. Each method plays a role in determining whether a driver is under the influence of substances that could impact their ability to safely operate a vehicle.
Field Sobriety Tests For Drug Use
Field sobriety tests are the first line of detection officers will use to identify impairment during a traffic stop. These tests are meant to determine if a driver's motor skills and mental acuity are impaired. Common examples include the "walk-and-turn" test, where drivers are asked to walk in a straight line for a set number of steps, and the "one-leg stand," which involves balancing on one foot while counting aloud.
The most widely used test is the “horizontal gaze nystagmus.” During this horizontal gaze nystagmus test, the officer will wave an object from side to side and the driver will follow it with their eyes. These tests are designed to check for indicators of drug impairment. They screen for signs like impaired coordination, inability to comply with commands, and slowed response time.
Yet, these tests are extremely subjective. In addition, factors such as nervousness, fatigue, or even a medical condition can occasionally cause the operator to misinterpret the results. This subjectivity has created major issues regarding their reliability, particularly when used as evidence in a court of law.
Role Of Drug Recognition Experts
Drug Recognition Experts (DREs) are specially trained law enforcement officers. They use this training to detect when drugs are impairing drivers. This program started with the Los Angeles Police Department in the 1970s and has been implemented across the country since then.
DREs go through a rigorous 12-step protocol to determine if someone is impaired. If they're lucky, your training includes firsthand interviewing both the arresting officer and the driver. It includes pulse checks, eye examinations, physical coordination tests, and looking for needle marks. This process usually ends in laboratory analysis of blood, urine, or saliva to determine the presence of the drugs.
DRE evaluations are key in DUI drug prosecutions, as they go well beyond a simple field sobriety test with a head nod or foot tap. The methodology has not been without its controversies. Much of the research supporting the DRE process has been criticized for employing questionable scientific practices.
Second, lab tests can detect drugs long after their impairing effects have subsided, leading to potential misinterpretation of their effects. Yet, in practice, DREs are still a critical component of California's strategy to combat drug-impaired driving.
Testing Methods For Drug Impairment
When law enforcement wants confirmation of drug use, they depend on blood, urine, and saliva tests. Unlike field sobriety tests, which are subjective, these tests can provide a more objective measure of impairment by identifying specific substances in the driver's system. A breathalyzer provides immediate results on-scene for alcohol detection.
Drug testing generally requires laboratory analysis, which takes a longer time to process. The biggest difference is in detecting presence versus impairment. While alcohol testing measures current levels of the substance to determine immediate impairment, drug tests only indicate that a person has used a substance.
A driver could still test positive for marijuana even days after using it. This is true even when they're no longer impaired at the time of the stop. This distinction makes drug DUI cases more difficult. It further highlights the persistent fight to keep the public safe while pursuing the most effective detection methods.
Legal Consequences Of Prescription Drug DUIs
Driving under the influence of prescription drugs is a serious offense in California. The state takes prescription drug DUIs very seriously. In actuality, they punish these violations more harshly than alcohol-related ones due to the heightened risk that they impose. Knowing these legal consequences will allow you to understand the larger influence it can have on your personal and professional life.
Penalties For Drug-Related DUIs
The penalties for a prescription drug DUI depend on many factors. Prior DUI convictions, whether or not an accident was involved, and the existence of aggravating circumstances are all taken into account when deciding legal consequences. For first-time offenders, penalties can include fines, community service, license suspension, and required attendance in DUI education courses.
Jail time is generally rare for first offenses. It could still be pursued if aggravating factors are present, like having a child in the car or inflicting injury or death on others. For subsequent offenses, the penalties increase dramatically, frequently incorporating lengthier license suspensions, steeper fines, and required jail sentences. A third offense or any occurrence of injury or fatality may elevate the charge severity to a felony. That aggravation can lead to an additional prison term of up to four years.
As an alternative to conviction, California provides sentencing alternatives for first-time offenders, including probation or entry into an alcohol and drug rehabilitation program. These programs are a great way to decrease the need for incarceration while still tackling the underlying problem of impaired driving.
IPrescriptiondrug-related DUIs have more severe criminal consequences than alcohol DUIs. Proving that impairment resulting from prescription drugs—especially when a prescription label is present—necessitates more scrutiny, leading to harsher judgments.
Impact On Employment Opportunities
A DUI conviction can leave a lasting mark on your criminal record, which may create barriers when pursuing jobs or career growth. Employers still frequently conduct background checks. Even just a DUI charge can be a red flag for any position that requires a high degree of trust, particularly those involving transportation or logistics.
Even for employment beyond these industries, the mark of a DUI can still lead to adverse hiring decisions or loss of promotion. Keeping a clean driving record is more important than ever for individuals who rely on driving for their livelihood. One conviction might cost you your job or future employment opportunities.
If you're a first-time offender, understand that as many as 90% of all DUI arrests are of individuals with no previous arrest record. This sobering statistic serves to highlight that no one is immune from this possibility.
Insurance Rate Increases
Following a DUI conviction, you'll face an immediate and significant increase in your car insurance costs. Insurance companies treat DUI offenders as high-risk drivers leading to increased rates, often doubling or tripling the rates. Some others will just flat-out not renew your policy.
This can drive you into the market for high-risk insurance, which is often much costlier. The burden doesn't end with the financial impact, either. The higher premiums can affect you for years, straining your budget and making car ownership more expensive.
Insurers typically do not make a distinction between drug and alcohol-related DUIs when raising rates. This is true even if the DUI is for prescription drugs. These hidden costs are a sobering reminder that we should all do everything we can to prevent impaired driving, no matter what the substance.
Defenses Against Prescription Drug DUI Charges
Proving Legal Use Of Medications
One of the strongest defenses against prescription drug DUI charges is proving that the medication was legally prescribed and used. Having a photocopy of your prescription documentation can be very helpful. This documentation will show that you were acting as per your doctor's orders.
It can be a powerful defense against any allegation that you were willfully abusing drugs. Clear communication with your physician or prescriber can help too. Making sure you talk about any potential side effects, including how they may impact your ability to operate a motor vehicle, is imperative.
If your medication is causing drowsiness or decreased reaction times, your physician can suggest alternatives. They may even instruct you not to drive during those hours. This proactive approach shows that you are a responsible driver.
Having a record of your prescriptions on hand can be your best defense. If pulled over by law enforcement, being able to provide this information upfront demonstrates that you are informed and taking all necessary legal precautions. It's an easy precautionary measure that will spare you a lot of headaches in the future.
Challenging Drug Testing Accuracy
Methods of drug testing employed by law enforcement are not always reliable. Blood, urine, or saliva tests can show the presence of a substance well after the substance has stopped affecting your ability to drive. As you can see, many people have issues with the Drug Recognition Evaluation (DRE) protocol.
For one thing, they point out that lab results never match real-world impairment. For instance, some medications stay in your system for an extended period but aren't impairing your driving capability. In court, arguing the accuracy and validity of these tests is one of the most important defense strategies.
An experienced prescription drug DUI attorney will look into whether or not the right procedures were followed when testing took place. Human errors in handling samples or equipment malfunctions can produce inaccurate results and in turn wrongful charges. Highlighting these contradictions can be critical to winning your case.
Demonstrating Lack Of Impairment
Another solid prescription drug DUI defense is showing that you were not impaired when you were arrested. Witness testimonies can be crucial to this fight. Passengers or anyone who spoke to you before getting behind the wheel can strengthen your case.
Their testimony that you were awake and driving normally provides the best evidence. Expert witnesses can do great work as well. Medical professionals or toxicologists can testify that the amount of medication found in your system wouldn't result in impairment.
This type of evidence can be instrumental in beating law enforcement's allegations. Second, it's worth mentioning that about 95% of DUI arrests are based on subjective impressions of impairment.
Contesting Field Sobriety Test Results
Field sobriety tests are notoriously subjective and subjective tests are easily misinterpreted. First, officers only use their judgment to determine if they performed well enough, which can easily result in prejudicial assumptions or false positives.
For example, physical conditions such as fatigue or anxiety may impair test results when you are not impaired. Challenging these results in court is possible. Video evidence from the officer's body camera or dashboard camera can provide an objective record of the test.
A skilled attorney might use this footage to highlight inconsistencies in the officer's evaluation, strengthening your defense.
Preventing Prescription Drug DUIs
Understanding Medication Side Effects
Understanding the effects of your prescription medications on driving is key. Most commonly used sedating medications, including the opioid pain medications oxycodone, hydrocodone, and morphine, are well known for their sedating effects. These effects can lead to slowed reaction times and impaired judgment, which makes driving especially dangerous.
Sometimes it's not even about just not feeling okay. Even if you don't feel any side effects, some drugs may still affect your coordination and attention and reflect poorly on you. Many of these are prescription medications that can remain in your system for a week or more. This long-lasting effect can lead to inadvertent impairment.
Reading medication labels is one of the easiest ways you can educate yourself. Most prescription bottles have explicit warnings against driving or operating heavy machinery. If the product label states that it may cause drowsiness, dizziness, or trouble concentrating, that should be a red flag.
Don't stop there—have a conversation with your doctor or pharmacist. Ask what side effects are lurking under the surface. Always inquire about how long you should refrain from driving in the first place. Open communication with your healthcare provider can help you be adequately informed about the risks.
Consulting A Doctor Before Driving
If you're not sure if it's safe to drive after taking a new medication, always check with your physician first. They can help you understand how a new medication might interact with your body and if it poses any risks when you're driving.
For example, some medications might be safe initially but could impair your abilities when combined with other prescriptions or even certain foods. A brief discussion with your physician can help clear this up.
When you want to ask questions, be very specific with your questions. Guide your questions to the particulars of the scenario. For instance, you could ask whether it will be safe to drive immediately after taking your medicine, or later during the day.
If you're on several prescriptions, be sure to ask how they work together and if they can potentially increase side effects. These proactive discussions can help you manage your medication responsibly and avoid potential legal troubles, like a one-year license suspension for a first-time DUI offender in California.
Using Alternative Transportation Options
When unsure, don't drive—take another form of transportation. When your prescription might cause you to be unable to drive, turn to public transit. Rideshare services or even carpooling with a friend are other good options.
As always, planning is the most important step. For example, if you know you'll be taking painkillers after surgery, arrange for someone to drive you to follow-up appointments or errands.
Having a designated driver is a third simple, commonsense alternative. It takes the guesswork out and puts you, and everyone else on the road, safer.
Be safe today to escape the strain of coming violations. Finishing an approved DUI educational program will prevent you from incurring additional penalties if you receive a subsequent DUI within 12 months.

Conclusion
Being aware of the dangers between prescription drugs and driving is essential. Numerous prescription drugs can affect reaction time, focus, and judgment, putting drivers at higher risk for dangerous driving. In California, the law treats prescription drug DUIs seriously, with penalties that can affect your license, record, and daily life. Being aware of how law enforcement determines impairment, and what your rights are, can help you if you should ever find yourself in such a situation.
Be sure to discuss potential side effects with your physician before starting any new medication. Planning alternate transportation means you get home safe and sound without any future worries. By being aware and taking preventative measures, you can ensure the safety of yourself and others around you. As always, drive safely, be aware and stay safe. For more specific guidance, consult with legal or healthcare professionals that are able to offer tailored guidance.
Frequently Asked Questions
1. What Is A Prescription Drug DUI In California?
A prescription drug DUI occurs when you drive while impaired by prescription medication. Even legal prescription drugs can land you a DUI. If they impair your ability to drive safely, you can be charged with DUI.
2. Which Prescription Drugs Commonly Cause DUIs?
Xanax, Ambien, Oxycodone, Adderall, and Valium are some of the most frequently prescribed drugs associated with DUIs. These meds have the potential to impair judgment, coordination, and reaction time, leading to an increased risk of dangerous driving.
3. How Does Law Enforcement Detect Prescription Drug Impairment?
This includes erratic driving, slurred speech, or drowsiness. They can administer field sobriety tests and rely on drug recognition experts (DREs). Blood or urine tests are used to confirm the presence of many impairing substances.
4. What Are The Legal Consequences Of A Prescription Drug DUI?
A conviction carries mandatory fines, suspension of driver's license, probation, DUI school, and possible jail time. Penalties vary based on your driving record, the seriousness of the infraction, and other factors in the case.
5. Can I Fight A Prescription Drug DUI Charge?
Indeed, defenses can include demonstrating the medication was taken per instructions, no impairment existed, or flawed testing procedures. Working with an experienced DUI attorney can put you on the path toward developing a solid defense for your case.
6. Is It Illegal To Drive After Taking Prescribed Medication?
It is not illegal to drive after taking medication in and of itself. If a prescription drug impairs your ability to drive safely, you can be charged with DUI. This is true even if the drug was prescribed to you.
7. How Can I Prevent A Prescription Drug DUI?
Always check the side effects and warnings for your medication before getting behind the wheel. Never drive when drowsy, dizzy, or otherwise impaired. Consult your physician or pharmacist if you're uncertain about whether it's safe to drive while taking your medication.
------------------------------------
Defend Your Future: Stand Strong Against DUI With Prescription Drugs In California
Facing DUI charges involving prescription drugs in California can be a daunting experience, filled with uncertainty and anxiety. The stakes are high—a conviction could derail your future, threaten your career, and disrupt your personal life. But you don't have to go through this alone. At Gorelick Law Office, we're ready to stand by your side with the powerful defense you deserve.
Our in-depth guide on DUI with prescription drugs in California is designed to empower you with crucial knowledge about the legal process and your rights. Gorelick Law Office is dedicated to navigating the complexities of your case, offering a tailored approach that addresses the unique challenges associated with prescription drug-related DUI charges.
Don't let fear dictate your future. Take the first step toward protecting your rights. Reach out to us for a free consultation. Discover how our experience and commitment can bring you confidence and peace of mind during this difficult time. With Gorelick Law Office in your corner, you'll face these charges head-on with strength and resilience. Your future is worth defending, and we're here to ensure you have the best possible chance to secure it.
Disclaimer
The materials available on this website are for informational and entertainment purposes only and not to provide legal advice. You should contact your attorney to obtain advice concerning any particular issue or problem. You should not act or refrain from acting based on any content included in this site without seeking legal or other professional advice. The information presented on this website may reflect only some current legal developments. No action should be taken based on the information on this website. We disclaim all liability concerning actions taken or not taken based on any or all of the contents of this site to the fullest extent permitted by law.
Previous Post - How DUI Laws For Prescription Drugs Differ From Alcohol In California
Next Post - Why Understanding California DUI Laws For Prescription Drugs Could Save You Thousands