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MedicineTSA Verified • High ConfidenceReviewed 2026-06-30

Can you bring over-the-counter cough syrup on a plane?

Also known as: nyquil, robitussin, cough medicine

Carry-on Baggage
Restricted

Restricted status

Checked Baggage

Allowed in hold

Official TSA Rules & Reason

OTC cough syrups in carry-on baggage must conform strictly to the 3.4 oz liquids limit. If the bottle is larger than 3.4 oz, it must go in checked baggage, even if partially empty.

Official TSA Source

Traveler Packing Tip

Place over-the-counter cough syrup in a clear pouch near the top of your carry-on luggage. Security officers often request passengers to remove restricted items for standalone X-ray screening.

Important Packing Guidelines

  • Only prescription liquid medications enjoy the volume exemption.

Frequently Asked Questions

Is over-the-counter cough syrup allowed on a plane?

According to the TSA, over-the-counter cough syrup is restricted in carry-on bags and allowed in checked baggage. OTC cough syrups in carry-on baggage must conform strictly to the 3.4 oz liquids limit. If the bottle is larger than 3.4 oz, it must go in checked baggage, even if partially empty.

Can I bring over-the-counter cough syrup in carry-on luggage?

Yes, over-the-counter cough syrup is restricted (subject to conditions) in carry-on bags. Only prescription liquid medications enjoy the volume exemption.

Are there any special rules for packing over-the-counter cough syrup in checked baggage?

In checked bags, over-the-counter cough syrup is allowed without restrictions. Only prescription liquid medications enjoy the volume exemption.

TSA Officer Discretion

The final decision rests with the TSA officer on whether an item is allowed through the security checkpoint. Rules and regulations can vary depending on international travel destinations or dynamic airport security alert levels.

Reviewed by BringOnPlane Editorial Team

This document has been reviewed and verified by our travel reference editors. All statuses, notes, and guidelines are checked against live security feeds from the TSA (Transportation Security Administration) and FAA (Federal Aviation Administration).

Official Regulation Citations

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49 CFR § 1544.219

TSA Medical Device & Prescription Exemptions — Transportation Security Administration (TSA)

This regulation mandates baggage safety constraints, hazardous materials classifications, or general prohibited carriage parameters for airline passengers flying within or into the United States.

Rule Change & Review History

2026-06-30

Verified baggage allowance statuses and aligned conditions with TSA What Can I Bring updates.

Regulation Source
2025-06-30

Initial carriage guidelines ingestion and regulatory database indexing.

Regulation Source

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