Prescription Drug DUI Lawyer Phoenix

Most people think of DUIs as involving alcohol or illegal drugs. But in Arizona, driving under the influence of prescription medication can lead to the same serious criminal charges—even if you have a valid prescription. Law-abiding citizens often find themselves facing life-changing legal consequences after simply following their doctor’s orders.

If you or a loved one has been charged with a prescription drug DUI in Phoenix, you need an experienced and strategic attorney on your side. At Attorney Josh, we specialize in defending individuals accused of impaired driving due to prescribed medications. I’m Joshua A. Lopez, Esq., and I deliver exactly what my clients need in this situation: Strong Defense. Strong Results.

Arizona DUI Laws for Prescription Drugs

Under Arizona Revised Statutes §28-1381, it is illegal to operate a motor vehicle:

• While impaired to the slightest degree by any drug, alcohol, or vapor-releasing substance.
• While there is any drug or its metabolite in the person’s body.

This includes prescription drugs such as:

• Xanax
• Oxycodone
• Hydrocodone
• Valium
• Ambien
• Adderall
• Methadone
• Medical Marijuana (even with a card)

What makes Arizona unique is the inclusion of the “slightest degree” clause. That means even if you have a legal prescription, if the prosecution can show your ability to drive was impaired at all, you can be convicted of DUI.

A prescription drug DUI lawyer in Phoenix must understand both the legal nuances and medical science behind these charges. That’s where we come in.

How Prescription Drug DUIs Happen in Phoenix

People are often shocked to be arrested for DUI when they weren’t drinking and had only taken a medication their doctor prescribed. But Arizona law enforcement is highly trained to detect signs of impairment—regardless of the substance.

Here are common situations that lead to prescription drug DUI arrests:

• A driver is pulled over for swerving, drowsiness, or delayed response
• A routine traffic stop leads to observations of slurred speech or lack of coordination
• The driver admits to taking medication (even just the night before)
• A Drug Recognition Expert (DRE) is called to evaluate the driver
• Blood or urine tests show the presence of a controlled substance

Once arrested, you can face the same penalties as someone driving under the influence of alcohol or illegal drugs—even if you were taking your medication responsibly.

DUI Penalties for Prescription Drug Use in Arizona

A first-time DUI involving prescription drugs is typically charged as a Class 1 misdemeanor. Penalties can include:

• 10 to 180 days in jail

• Fines over $1,250

• License suspension or revocation

• Drug education and screening

• Probation

• Installation of an ignition interlock device (in some cases)

If it’s a second or third DUI—or if aggravating factors are involved (like a child in the car or a suspended license)—the penalties increase dramatically and may even become felonies.

When your reputation, license, and freedom are on the line, hiring a strategic prescription drug DUI lawyer in Phoenix becomes your most critical move.

Smart Legal Defenses for Prescription Drug DUI Charges

At Attorney Josh, we don’t just challenge the evidence—we challenge the assumptions. DUI cases involving prescription medication require smart, science-based defense strategies that are custom-built for your case.

Here’s how we build a strong defense:

1. Valid Prescription Defense

Arizona courts do not automatically dismiss charges just because you had a prescription—but it does give us an important tool. If your medication was taken as prescribed, and we can show it did not impair your ability to drive, we may be able to secure a dismissal or reduction.

2. Challenge the “Impairment” Claim

Arizona law requires the prosecution to prove you were impaired to the slightest degree. This is highly subjective, especially when based on an officer’s opinion or a DRE’s evaluation.

We challenge:

• The training and credibility of the DRE
• Field sobriety tests (which are not always accurate indicators for prescription drug use)
• Body camera footage that may contradict the report
• Your driving pattern and behavior

3. Toxicology Analysis

Many medications stay in your system long after their impairing effects wear off. Just because a drug is present in your blood doesn’t mean you were impaired at the time of driving.

We often work with expert toxicologists to:

• Challenge the timing of drug ingestion
• Question whether therapeutic levels equal impairment
• Argue that test results reflect legal and normal use

4. Improper Police Procedures

If your rights were violated at any point during the stop, arrest, or testing process, we may be able to suppress key evidence. This includes:

• Unlawful traffic stops
• Improper Miranda warnings
• Coerced confessions
• Flawed or delayed chemical testing

When we find these flaws, we turn them into opportunities to weaken or dismiss the prosecution’s case.

How a Prescription Drug DUI Affects Your Life

Even a first-time prescription DUI conviction can be devastating:

• Loss of driver’s license

• Job loss or professional license suspension

• Social stigma and damaged reputation

• Increased insurance premiums

• Loss of firearm rights (for felony cases)

And if you work in healthcare, law enforcement, education, or any licensed profession, a DUI conviction could have career-ending consequences.

That’s why you need more than just a lawyer—you need a legal strategist who understands what’s at stake and knows how to fight smart.

Why Clients Trust Attorney Josh

As a top-ranked prescription drug DUI lawyer in Phoenix, I’ve helped clients across Phoenix and Scottsdale protect their future when everything felt stacked against them. I don’t use cookie-cutter defenses. I build each case around smart legal tactics, forensic evidence, and courtroom experience.

Here’s what makes our firm different:

Smart Legal Tactics
We analyze your case from every angle—law, science, and psychology—to build a strategy that works in the courtroom and in negotiations.

Strong Results, Real Relief
We’ve helped clients get charges dismissed, reduced, or diverted. In many cases, we’ve helped them avoid jail time altogether.

Clear Communication
We explain the law in plain language and keep you informed every step of the way. You’ll never be left guessing.

Local Advantage
We work in Maricopa County courts every day and understand the local judges, prosecutors, and policies.

Compassionate Approach
We know you’re not a criminal. You’re someone who trusted your doctor—and now you need someone to protect your rights.

Frequently Asked Questions

Can I be arrested for DUI if I have a valid prescription?

Yes. Arizona law allows you to be charged with DUI if you are impaired while driving—even if the drug causing impairment was legally prescribed.

What if I wasn’t driving poorly or erratically?

Even if you were driving safely, officers may still arrest you based on physical signs of impairment or your admission of taking medication. That’s why it’s critical not to answer questions about medications without legal counsel.

Is a prescription drug DUI a felony?

It can be if you have prior DUI convictions, were driving on a suspended license, or had a child under 15 in the vehicle. Most first-time cases are misdemeanors, but felony charges carry far more severe penalties.

Can these charges be dropped?

Yes, depending on the circumstances. At Attorney Josh, we have successfully had DUI charges dismissed or reduced when we demonstrate non-impairment, procedural violations, or flaws in testing.

How We Can Help

At Attorney Josh, we believe that smart defense leads to strong results. If you’re facing charges for a prescription drug DUI in Phoenix, don’t navigate the legal system alone. You deserve a legal team that understands both the medicine and the law—and how to use both to your advantage.

With offices in Phoenix and Scottsdale, we’re ready to fight for you with intelligence, strategy, and unwavering dedication. Let us protect your rights, preserve your record, and give you the best shot at moving forward.

Call Attorney Josh today. Let’s build your defense.

Strong Defense. Strong Results.