Automotive Fleet
MenuMENU
SearchSEARCH

Fleet Safety Tip of the Week

Since flu season is approaching, this is a good time to remind your drivers to be mindful of how medication side effects can affect their ability to drive safely.

by Staff
October 26, 2011
3 min to read


Since flu season is approaching, this is a good time to remind your drivers to be mindful of how medication side effects can affect their ability to drive safely. 

Both prescription and over-the-counter medicines can have side effects that impair driving. Those side effects can include loss of concentration, blurry vision, loss of depth perception, fatigue, excitedness, slowed reaction time and a whole range of other symptoms.

Ad Loading...

Drivers need to use such medications responsibly so that driver safety is never compromised. Here are some facts and advice, provided by www.friendsdrivesober.org, that drive home that point:

• Taking sedating antidepressants even 10 hours before driving is equal to driving drunk. 

• 10 mg of Valium can cause greater driving impairment than a blood alcohol concentration of 0.1 (at or above the legal limit in all states). 

• Antihistamines, which block allergic reactions, slow down reaction time and impair coordination. 

• Over-the-counter decongestants can cause drowsiness, anxiety and dizziness. Drowsy driving is responsible for an estimated 100,000 traffic crashes and about 1,500 deaths every year, according to the National Highway Traffic Safety Administration (NHTSA).

Ad Loading...

• Common prescription drugs (including medications to treat allergies, pain, diabetes, high blood pressure, cholesterol, ulcers, depression, anxiety disorders, and insomnia) can cause drowsiness, affect vision and other skills that can be serious hazards on the road.

• Tranquilizers, sedatives and sleeping pills slow down the central nervous system, causing drowsiness and diminished reaction time. They also impair the ability to concentrate. 

• Over-the-counter drugs such as cold and cough medicines, antihistamines, drugs to prevent nausea or motion sickness, pain relievers, decongestants and diuretics can cause drowsiness or dizziness that can impair a driver's skills and reflexes. 

Some drugs may make you feel alert and confident in your driving. But the reality of the situation may be quite different. Drugs can fool you into believing you are in control of your driving when you are, in fact, impaired.

Here is a partial list of legal drugs that can -- in the right amount -- impair someone’s ability to drive.  

Ad Loading...

◦ Anti-anxiety medication

◦ Amphetamines

◦ Barbiturates

◦ Stimulants

◦ Narcotic pain medications

Ad Loading...

◦ Allergy medicines

◦ Blood sugar medicines

◦ Antidepressants

◦ Tranquilizers

◦ Blood pressure medicines

Ad Loading...

◦ Motion sickness medication

◦ Ulcer medication

◦ Antibiotics

◦ Anti-seizure medicines

◦ Paregoric

Ad Loading...

◦ Anti-nausea medicine

◦ Sedatives

◦ Cough syrups

◦ Alcohol-containing medicines

◦ Caffeine-containing medicines

Ad Loading...

◦ Decongestants.

Drivers need to partner with their physician and pharmacist to learn all they can about their medication's side effects, and what drugs are usually safe to combine -- especially behind the wheel.

Drivers, never take more than the prescribed dose, or take anyone else's medicine. Ask for non-sedating forms of your prescriptions if you will be driving. Allow your body time to adjust to new medications before you drive. Most importantly, make sure you know the signs and symptoms of being drug impaired before you start driving.


More Safety

Chris Brown sits across from safety experft at Lifesaver mobile in an interview about distracted driving and phone use tech.
Safetyby Chris BrownMay 1, 2026

Reducing Risk by Eliminating Phone Use Behind the Wheel

Distracted driving remains one of the most persistent risks in fleet operations. New approaches focus on removing mobile device use entirely while adding real-time safety support.

Read More →
Safetyby Jeanny RoaApril 15, 2026

Distracted Driving in the Age of Smart Tech – Part 2

As distraction risks evolve, fleets are turning to smarter, more connected technologies to better understand what’s happening behind the wheel. Part 2 explores how these tools are helping identify risky behaviors and improve visibility across operations.

Read More →
Safetyby Jeanny RoaApril 11, 2026

 Data Rights, Risks, and Responsibilities After a Crash

What fleets capture to improve safety can also expose them in litigation, forcing leaders to rethink how data is managed, stored, and shared.

Read More →
Ad Loading...
Driver holding a phone while steering, illustrating distracted driving and the importance of mental awareness and attention on the road for fleet safety.
Safetyby Judie NuskeyApril 10, 2026

From Distraction to Detection: Strengthening Awareness in Fleet Drivers

Distracted driving is often measured by what we can see—phones in hand, eyes off the road. But what about the distractions we can’t? A recent incident raises a bigger question about awareness, attention, and why subtle risks so often go unnoticed.

Read More →
Safetyby StaffApril 8, 2026

Lytx 2026 Road Safety Report

While serious crashes are declining, a rise in minor incidents and ongoing risk hotspots underscore the need for continued fleet safety investment.

Read More →
Driver’s hands on steering wheel in a sunlit vehicle, representing real-world driver behavior and the shift from data monitoring to hands-on training in fleet safety programs.
Safetyby Judie NuskeyApril 7, 2026

Behind-the-Wheel vs. Classroom Training: What Actually Changes Driver Behavior?

Fleets have more driver data than ever, so why isn't behavior changing? Training requires more than reports and coaching — it requires real-world practice.

Read More →
Ad Loading...
A person in a car on their phone behind the steering wheel.
Safetyby Jeanny RoaApril 1, 2026

Distracted Driving in the Age of Smart Tech – Part 1

A two-part conversation with Stefan Heck on how AI is transforming the fight against distracted driving. As fleets adopt smarter tools, the focus shifts from reacting to preventing risk. In Part 1, we look at where AI is making an impact for fleets today.

Read More →
Pedestrians crossing a busy street, highlighting the importance of driver awareness and caution to prevent pedestrian accidents.
Safetyby StaffMarch 30, 2026

Pedestrian Safety Starts With the Driver

More people on foot means more risk for drivers. These pedestrian safety tips can help prevent serious injuries and keep everyone safer on the road.

Read More →
SponsoredMarch 30, 2026

Safety by Design: Power and Protection in the Freightliner 114SD Plus

Safer crews. Fewer incidents. Better uptime. Learn how driver-assist technology is changing the way vocational fleets operate.

Read More →
Ad Loading...
Safetyby StaffMarch 26, 2026

Pedestrian Deaths Drop in First Half of 2025, Marking Largest Decline in Years

An 11% drop in pedestrian fatalities in early 2025 signals progress in U.S. road safety, but elevated death rates and ongoing risks underscore the need for continued action from fleets and policymakers.

Read More →