Other impairing drugs — South Carolina Permit Test

Other impairing drugs on the South Carolina permit test — 5 rules, each with the reason behind it and a question on it while it is fresh.

The rules

Over-the-counter drugs taken for headaches, colds, allergies, or to calm nerves can make you drowsy and affect your driving.

Drugs bought without a prescription feel harmless but can impair a driver much as alcohol does.

Over-the-counter drugs taken for headaches, colds, allergies, or those to calm nerves can make you drowsy and affect your driving.

South Carolina Driver's Manual, p.40

Pep pills, "uppers," and diet pills can make you nervous, dizzy, and unable to concentrate, and may affect your vision.

Stimulants are often assumed to make a driver more alert, but they impair concentration and sight instead.

Pep pills, “uppers,” and diet pills can make you feel nervous, dizzy, unable to concentrate, and may affect your vision.

South Carolina Driver's Manual, p.40

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

A professional knows how a drug's side effects could affect your reflexes and alertness at the wheel.

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

South Carolina Driver's Manual, p.40

A conviction in South Carolina for driving under the influence of drugs is treated as a DUI or DUAC conviction.

Drug impairment is as dangerous as alcohol impairment, so the law treats it the same way.

If you are convicted in SC of driving while under the influence of drugs, your conviction will be treated like as a DUI or DUAC conviction.

South Carolina Driver's Manual, p.40

Never drink alcohol while taking other drugs, including prescription or over-the-counter drugs, because they could multiply the effects of alcohol.

Combining them can produce impairment far greater than either would cause alone.

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

South Carolina Driver's Manual, p.40

On the test

How can over-the-counter drugs for colds or allergies affect your driving?

They can make you drowsy. Drugs bought without a prescription feel harmless but can impair a driver much as alcohol does. South Carolina Driver's Manual, p.40: “Over-the-counter drugs taken for headaches, colds, allergies, or those to calm nerves can make you drowsy and affect your driving.”

How this works

Most practice tests hand you a bank of questions and leave the manual somewhere else. This one puts them together.

You read one law and the reason behind it, then answer a question on that law while it is still fresh. Get it right and you move on; get it wrong and you have found the gap while it is cheap to fix, not on the morning of the exam.

Learning one rule at a time, and proving it immediately, is what turns a manual you skimmed into something you actually know — and it makes studying feel like getting somewhere rather than like waiting to find out.

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Where these come from

Every rule here is checked against South Carolina Driver's Manual, published by the South Carolina Department of Motor Vehicles, and against the state code itself. Last checked 2026-10-03.