Yes. You can face a DUI or DWAI charge in Colorado after taking prescription medication, even when a doctor prescribed the medication and you followed the directions. Colorado law focuses on whether alcohol, one or more drugs, or a combination affected your ability to drive safely. A lawful prescription does not, by itself, provide a defense to a DUI or DWAI charge.
Prescription medication DUI cases can involve questions about the medication, dosage, timing, medical history, officer observations, roadside testing, toxicology results, and whether the evidence actually shows impairment. If you are facing a prescription drug DUI investigation in Colorado Springs, those details can matter when your case is reviewed.
The Law Firm of Mark S. Hanchey and Ben Peterson represents people facing DUI, DWAI, and drug-related driving allegations in Colorado Springs and nearby areas.
How Can Prescription Medication Lead to a Colorado DUI?
Colorado law applies DUI and DWAI rules to alcohol, drugs, and combinations of alcohol and drugs.
Under Colorado Revised Statutes section 42-4-1301, DUI involves driving after consuming alcohol, one or more drugs, or a combination that affects a person to the point that the person is substantially incapable, mentally or physically, of exercising clear judgment, sufficient physical control, or due care in the safe operation of a vehicle.
DWAI, or driving while ability impaired, uses a lower impairment standard. It applies when alcohol or drugs affect a driver to the slightest degree so that the person is less able than usual to exercise clear judgment, sufficient physical control, or due care while driving.
This means a medication can be legally prescribed and still become part of a DUI or DWAI case if prosecutors claim that it impaired the driver.
For a broader explanation of drug-related impaired driving in Colorado Springs, visit:
https://hancheylaw.com/colorado-springs-duid-lawyers/
Does a Valid Prescription Protect You From a DUI Charge?
No. Colorado Revised Statutes section 42-4-1301 states that being legally entitled to use a drug does not constitute a defense to a DUI or DWAI charge involving that drug.
The central question is not whether you had permission to possess or use the medication. The question is whether the prosecution can prove that the drug affected your ability to operate a vehicle under the legal standard that applies to the charge.
Your prescription and medical history can still provide useful context. Depending on the facts, records may help establish:
Which medication was prescribed
The prescribed dosage
How long you had been taking the medication
When you took the most recent dose
Whether you were taking other prescribed medications
Whether a medical condition may explain an officer’s observations
Whether the reported drug level is consistent with your documented medication use
A prescription does not automatically defeat a charge, but it can be part of the evidence an attorney reviews when evaluating what the prosecution can prove.
With You Every Step of the Journey
When you need legal help, Mark Hanchey and Ben Peterson are here to guide you through it all. One step at a time. Reach out today for legal support. Get The Law Firm of Mark S. Hanchey and Ben Peterson fighting for you.
Which Prescription Medications Can Affect Driving?
Many medications can produce effects that may interfere with safe driving. The type and degree of those effects can vary from person to person.
Examples may include:
Prescription pain medications
Benzodiazepines used for anxiety or seizure conditions
Prescription sleep medications
Muscle relaxants
Certain antidepressants
Certain antipsychotic medications
Prescription stimulants
Medications that may cause dizziness, drowsiness, slowed reactions, or difficulty concentrating
The fact that a medication can cause a side effect does not establish that a specific driver was impaired.
The circumstances may become more complicated when prescription medications are combined with alcohol, marijuana, over-the-counter medication, or another prescription. Even if each substance was lawfully obtained, law enforcement may investigate whether the combined effects impaired the driver’s ability to operate a vehicle safely.
Bridgette Carabajal
I've had the pleasure of working with Mr. Hanchey on two occasions, and each interaction has been nothing short of exceptional. His professional demeanor, coupled with the outstanding support from his staff significantly alleviated any anxieties I had. I am thoroughly satisfied with the outcomes achieved. Should the need for legal representation arise in the future, Mr. Hanchey will undoubtedly be my first choice.
Lucas Garcia
Mark Hanchey has been excellent. I spoke with him last minute before my court date. He still showed up to court with me and was very caring and helped me before I had even officially hired him. I felt like he cared about me and my case. He knows his craft very well and you can tell that the judge and other attorneys respect him when he is in court. He is also very kind. I recommend him to anyone. An excellent attorney.
Renee Braucht
I had an amazing experience with the Hanchey Law Firm! Mr. Hanchey got me the absolute best result I could have imagined for my case. I can’t even tell you how many times I’ve heard, “wow, you must have had a really good lawyer!” when discussing the result. I live far from Colorado Springs, but I will forever make the trip for this firm when I need them! Highly recommend!
David Walker
I have needed to use a lawyer a couple of times over the past several years and have used Mark Hanchey. He is a very down to earth person who has always treated me with dignity and has always been straight forward. His staff has also been professional and friendly. Each time I used Mark Hanchey the result was a positive one. I also think his fees are reasonable. I cant say enough good about Mark Hanchey.
What Can Cause Police to Suspect Prescription Drug Impairment?
A prescription medication DUI investigation often begins with observed driving behavior or a crash.
An officer may report seeing conduct such as:
Weaving within or outside a lane
Driving unusually slowly
Braking late
Making an improper turn
Failing to obey a traffic signal
Responding slowly to changing traffic conditions
Being involved in a collision
After a stop, an officer may look for physical or behavioral signs that the officer associates with impairment. The officer may report unusual speech, balance problems, delayed reactions, confusion, eye movements, difficulty following instructions, or other observations.
Those observations do not establish by themselves that prescription medication caused impairment.
Fatigue, anxiety, injuries, neurological conditions, mobility limitations, illness, environmental conditions, and the stress of a police stop may affect how a person appears or performs during an investigation.
What Happens During a Prescription Drug DUI Investigation?
When an officer suspects drug impairment, the investigation may extend beyond the initial traffic stop.
The officer may ask about prescription medication, recent doses, alcohol use, marijuana use, or other substances. The officer may also ask the driver to perform roadside sobriety exercises.
In some cases, a Drug Recognition Expert, commonly called a DRE, may participate. A DRE is a law enforcement officer who has received specialized training related to identifying signs that may be associated with drug impairment. A drug evaluation can include observations of coordination, behavior, eye responses, pulse, blood pressure, body temperature, muscle tone, and other physical signs.
A DRE opinion is evidence that can be reviewed and challenged. It does not replace the prosecution’s obligation to prove the elements of the charged offense.
For more information about the legal process following a drug-related arrest, visit:
https://hancheylaw.com/navigating-the-legal-process-after-a-duid-arrest-in-colorado/
Can Police Require a Drug Test in a Colorado DUI Case?
Colorado’s expressed consent law allows law enforcement to require chemical testing in qualifying DUI and DWAI investigations.
When an officer has probable cause to believe that a person drove under the influence of, or while impaired by, drugs, Colorado law allows the officer to request testing that may include blood, saliva, or urine for drug content. The circumstances surrounding the request, collection, timing, and handling of the sample can become relevant when the evidence is reviewed.
A drug test may identify a substance in a person’s system, but the presence of a prescription medication does not always answer whether the person was impaired while driving.
Can a Blood Test Prove Prescription Drug Impairment?
Not by itself in every case.
A toxicology result may establish that a medication or metabolite was detected. The meaning of that result depends on the substance, concentration, timing, testing method, medical history, and other evidence.
Unlike alcohol DUI per se cases, where a blood alcohol concentration of 0.08 or more can support a DUI per se charge, Colorado does not apply one universal numerical impairment limit to prescription medications.
That distinction can make toxicology interpretation a major issue in a prescription medication case.
A defense attorney may examine questions such as:
Which drug or drugs were detected?
What concentration did the laboratory report?
Was the reported substance an active drug, a metabolite, or both?
When did you take the medication?
When did law enforcement collect the sample?
Was the dosage consistent with the prescription?
Were the sample collection and laboratory procedures properly followed?
Were there medications or medical conditions that could affect the interpretation?
Does the toxicology evidence match the officer’s description of your driving and behavior?
A positive drug test is not the same question as whether the prosecution can prove impairment under Colorado law.
The laboratory result should be considered with the driving evidence, officer observations, video, medical information, and the rest of the case.
How Can a Defense Attorney Evaluate a Prescription Medication DUI Case?
Prescription medication cases often depend on details that are not apparent from the charge alone.
An attorney may examine the reason for the traffic stop, the basis for the arrest, statements made during the investigation, body-camera footage, dash-camera footage, roadside exercises, toxicology testing, medical records, prescription information, and other available evidence.
Issues that may require review include:
Whether law enforcement had a lawful basis for the traffic stop
Whether the reported driving behavior matches available video
Whether roadside sobriety exercises were administered under appropriate conditions
Whether an injury, disability, illness, or medical condition affected performance
Whether officer observations are consistent with body-camera or dash-camera footage
Whether the chemical test was lawfully requested
Whether the sample was collected and handled properly
Whether laboratory procedures were followed
Whether the reported drug concentration supports the prosecution’s theory
Whether another explanation accounts for the symptoms described by police
Whether the prosecution can connect the medication to impairment at the time of driving
Every case depends on its own facts. A possible defense issue in one case may not apply in another.
For more information about issues that may arise in DUID cases, visit:
https://hancheylaw.com/common-defenses-against-duid-charges-in-colorado/
What Are the Potential Penalties for a Prescription Medication DUI?
A prescription drug DUI or DWAI can carry criminal penalties under the same Colorado impaired-driving statutes that apply to other DUI and DWAI cases.
The possible consequences depend on the offense, prior impaired-driving convictions, the facts of the case, and any aggravating circumstances.
A first DUI conviction can involve:
Jail
Fines
Public service
Probation
Alcohol or drug evaluation, education, or treatment requirements
Driver’s license consequences
Court costs and other case-related requirements
Colorado law also increases the seriousness of repeat impaired-driving offenses. A DUI or DWAI offense is a class 4 felony when it occurs after three or more qualifying prior convictions arising from separate and distinct criminal episodes, as described in Colorado Revised Statutes section 42-4-1301.
Criminal court consequences and driver’s license consequences can involve separate procedures and issues.
For a broader overview of Colorado Springs DUI representation, visit:
https://hancheylaw.com/colorado-springs-dui-lawyers/
What Should You Do After a Prescription Medication DUI Arrest?
Preserving accurate information can help an attorney understand what happened.
Consider writing down:
The name and dosage of each medication you took
The time you took each medication
What you ate and drank
Where you were driving
The approximate time of the traffic stop
What the officer said and asked
What you said during the stop
Which roadside exercises were requested
Whether a blood, saliva, urine, or breath sample was requested or collected
The names of any witnesses who may have relevant information
Keep prescription records, pharmacy documents, medical records, receipts, photographs, discharge instructions, and other materials that may help establish timing or explain your physical condition.
Do not stop taking medically necessary prescription medication solely because of an arrest. Questions about changing or stopping medication should be discussed with the medical professional who prescribed it.
Avoid posting details about the arrest or the facts of the case on social media.
An attorney can review the available evidence and explain which issues may apply to your circumstances.
Speak With a Colorado Springs DUI Attorney
A prescription medication DUI accusation does not establish that the prosecution can prove impairment. The evidence may involve prescription records, medical history, laboratory findings, police observations, video footage, driving behavior, and the timing of medication use.
The Law Firm of Mark S. Hanchey and Ben Peterson represents people facing DUI, DWAI, and DUID allegations in Colorado Springs and nearby Colorado communities. The firm offers free consultations.
To discuss your situation, call (719) 212-9055 or visit:
https://hancheylaw.com/contact/
This article is for general informational purposes only. It is not legal advice and does not create an attorney-client relationship. You should consult an attorney about your specific situation.
