Drugs combined with alcohol — Delaware Permit Test

Drugs combined with alcohol on the Delaware permit test — 5 rules, each with the reason behind it and a question on it while it is fresh.

The rules

Drugs taken for headaches, colds, hay fever or other allergies, or to calm nerves can make a person drowsy and affect their driving, including drugs bought without a prescription.

A driver who takes an allergy pill before a long trip may nod off at the wheel an hour later.

Drugs taken for headaches, colds, hay fever or other allergies, or those to calm nerves can make a person drowsy and affect their driving.

Delaware Driver Manual, p.52

Pep pills, "uppers," and diet pills can make a driver feel more alert for a short time, but later can make them nervous, dizzy, unable to concentrate, and affect their vision.

A driver who takes a pep pill to stay awake on a night drive can crash when it wears off.

Later however, they can cause a person to be nervous, dizzy, unable to concentrate, and they can affect your vision.

Delaware Driver Manual, p.52

If you are driving, check a drug's label for warnings about its effect before you take it, and if you are not sure it is safe, ask your doctor or pharmacist.

A label that says 'may cause drowsiness' is a warning a driver can read in five seconds and avoid a crash.

If you are not sure it is safe to take the drug and drive, ask your doctor or pharmacist about any side effects.

Delaware Driver Manual, p.52

Never drink alcohol while taking other drugs; the drugs could intensify the effects of alcohol or add effects of their own, even causing serious health problems or death.

A sleeping pill and a couple of drinks together can knock a driver out far faster than either alone.

These drugs could intensify the effects of alcohol or have additional effects of their own.

Delaware Driver Manual, p.52

Studies have shown that people who use marijuana make more mistakes, have more trouble adjusting to glare, and get arrested for traffic violations more than other drivers.

A driver slow to recover from oncoming headlights can miss a pedestrian in the dark gap that follows.

For example, studies have shown that people who use marijuana make more mistakes, have more trouble adjusting to glare, and get arrested for traffic violations more than other drivers.

Delaware Driver Manual, p.52

On the test

Which medicine can make a driver drowsy and affect their driving?

A cold or allergy medicine. A driver who takes an allergy pill before a long trip may nod off at the wheel an hour later. Delaware Driver Manual, p.52: “Drugs taken for headaches, colds, hay fever or other allergies, or those to calm nerves can make a person drowsy and affect their driving.”

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Where these come from

Every rule here is checked against Delaware Driver Manual, published by the Delaware Division of Motor Vehicles, and against the state code itself. Last checked 2026-10-05.