Driving under the influence (DUI) is commonly associated with alcohol and illegal drugs, but many people are unaware that prescription medications can also cause serious legal trouble. Even if you are prescribed medication legally by a healthcare provider, certain drugs can impair your ability to drive safely. This impairment can result in a DUI arrest and all the consequences that follow. In this guide, we’ll explore why legal medications can still get you arrested for DUI, the drugs most commonly involved, the risks of impairment, and what to do if you find yourself in trouble.
The Reality of Prescription Drugs and DUI 
Prescription medications are prescribed to help manage various health conditions, but some can affect your cognitive and physical abilities. While the medications themselves are legal when taken as prescribed, the law does not differentiate between legally prescribed drugs and illegal substances when it comes to driving under the influence. Many prescription drugs can have side effects that impair your ability to drive safely, making it possible for you to be arrested for DUI, even though you have a legitimate prescription. This is particularly problematic because the legal system treats impairment as a safety concern rather than the legality of the substance.
Common Prescription Drugs that Can Lead to DUI Arrests
There are a variety of prescription drugs that can cause impairment while driving. These include:
- Painkillers (Opioids): Opioids such as oxycodone, hydrocodone, and morphine are commonly prescribed for pain relief. These drugs work by interacting with receptors in the brain to reduce pain, but they can also cause sedation, dizziness, and slowed reaction times. These effects can make it dangerous to operate a vehicle.
- Anti-anxiety Medications (Benzodiazepines): Medications like Xanax, Valium, and Ativan are prescribed to manage anxiety and panic disorders. While they are effective in treating these conditions, they also have sedative effects. These medications can lead to drowsiness, confusion, and impaired motor coordination, which are risky when driving.
- Antidepressants and Antipsychotics: Many people take antidepressants or antipsychotic medications to manage mood disorders or mental health conditions. While these drugs are essential for maintaining mental health, they can cause side effects like blurred vision, dizziness, and drowsiness that can make driving unsafe.
- Sleep Aids: Medications such as Ambien and Lunesta are often prescribed to help people with sleep disorders. However, these medications can cause lingering drowsiness the following day, leading to impaired judgment and reaction times while driving.
While these medications are legal when taken according to a doctor’s instructions, their side effects can lead to dangerous driving conditions, making it possible for individuals to be arrested for DUI even if they have a legitimate prescription.
How Impairment from Prescription Drugs Affects Driving
Even if you take your prescription medications exactly as directed, they can still impair your ability to drive. Common side effects of prescription drugs that can affect driving include:
- Drowsiness: Many prescription drugs, including painkillers, anti-anxiety medications, and sleep aids, can make you feel extremely tired and sluggish. Drowsiness slows your reaction time, reduces focus, and impairs your decision-making abilities—all of which are critical skills when driving.
- Dizziness and Lightheadedness: Some medications, especially painkillers and antidepressants, can cause dizziness. This can make it difficult to concentrate on the road and maintain control of the vehicle.
- Blurred Vision: Certain medications, particularly antipsychotics and antidepressants, can cause blurred vision or difficulty focusing. This is especially dangerous when driving, as it may prevent you from seeing important road signs or reacting to potential hazards.
- Slowed Reaction Time: One of the most dangerous effects of prescription drug impairment is slowed reaction times. If your reflexes are delayed, it may take longer to stop your car, swerve to avoid an obstacle, or respond to a traffic signal, increasing the likelihood of an accident.
The Legal Consequences of Driving Under the Influence of Prescription Drugs
Driving under the influence of prescription drugs is taken just as seriously as driving under the influence of alcohol or illegal drugs. In Colorado, and in many other states, DUI laws apply to all forms of impairment, including those caused by legal substances. If you are arrested for a DUI related to prescription medication, you can face the following legal consequences:
- Fines and Court Costs: A DUI arrest often results in significant fines, which can be a financial burden. You may also have to pay for court costs and attorney fees.
- License Suspension or Revocation: One of the immediate consequences of a DUI conviction is the suspension or revocation of your driver’s license. This means you may be unable to drive for an extended period, making it difficult to get to work, school, or other essential places.
- Incarceration: Depending on the circumstances and whether it is a first offense, you could face jail time if convicted of a DUI involving prescription drugs.
- Probation or Community Service: In some cases, instead of jail time, a DUI conviction may result in probation or community service. However, these sentences come with their own challenges and can still significantly impact your life.
- Increased Insurance Rates: A DUI conviction can lead to higher car insurance rates, sometimes for several years. Insurers may see you as a high-risk driver, which could increase your premiums.
Even though you may have been taking the medication as prescribed by your doctor, if you are impaired while driving, you can still face a DUI charge and its associated penalties.
Impairment Testing and Prescription Drugs
When law enforcement officers suspect that a driver is impaired, they may conduct roadside sobriety tests or request that the driver submit to a blood or urine test. These tests can identify the presence of drugs in the bloodstream, including prescription medications. However, unlike alcohol, which has a clear legal limit (typically 0.08% BAC), there is no universally accepted “limit” for prescription drugs. This makes determining impairment more complex and leaves room for interpretation.
In some cases, police officers may not be able to identify the exact drug impairing a driver, and this can complicate the legal process. However, if the results of a blood or urine test show the presence of prescription drugs that could impair driving, a DUI charge may still be filed.
What to Do if You Are Arrested for DUI Due to Prescription Medication
If you are arrested for DUI due to prescription medication, it’s important to stay calm and know your rights. First, remember that you have the right to remain silent. You don’t have to answer questions about your medications or provide any information that could be self-incriminating. Instead, it’s advisable to speak with an attorney who specializes in DUI defense.
A knowledgeable attorney can help you understand the legal process, challenge the evidence presented by law enforcement, and work to reduce or dismiss the charges. It’s also important to keep any relevant documentation of your prescription, as this can support your defense.
Prescription drugs are legal when used as directed by a healthcare professional, but they can still lead to a DUI charge if they impair your ability to drive safely. Many commonly prescribed medications can cause drowsiness, dizziness, and other side effects that impair driving skills, increasing the risk of accidents. In Colorado and other states, driving under the influence of prescription drugs is treated as a serious offense with severe consequences. If you are arrested for DUI due to prescription medication, it is crucial to seek legal representation from an experienced attorney as Hebets & McCallin P.C. to protect your rights and reduce the potential consequences.