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Can I Carry It? — verified carry-on guide

Can You Bring Liquid Medications (over 100ml) on a Plane?

Category: Medication & Health

Direct Answer (2026 Official Rules)
Cabin: ✓ YES Hold: ✓ YES

Yes — you can bring liquid medications on a plane in your carry-on luggage. Medically necessary OTC and prescription liquids exempt from 100 ml cap.

Verified against published 2026 TSA (United States) & CATSA (Canada) security screening databases.

On this page · 9 sections

⚖️ Why This Rule Exists: Statutory Medical Safeguards & 14 CFR Part 382 Accessibility Protections

Under federal aviation law and disability access regulations, medically necessary items, prescription pharmaceuticals, assistive equipment, and life-supporting supplies are granted explicit exemptions from standard baggage quotas and liquid volume limits to protect passenger health during travel.

Decision Threshold: Medically necessary liquids and assistive devices are exempt from 3-1-1 limits and baggage fee quotas in reasonable travel quantities.

Rules by security authority

United States — TSA

Cabin:

YES

Exempt from 3-1-1 liquids rule.

Hold:

YES

Allowed in checked luggage (cabin recommended).

Rule conditions: Medically necessary OTC and prescription liquids exempt from 100 ml capRemove from bag and declare to screening officers at start of screeningScreened via bottle scanner or chemical vapor test strip

Flying internationally? Security follows the country you depart from — the authority above applies at your departure airport. Customs at arrival is separate.

🔍 Security Checkpoint & X-Ray Screening Advice

Declare prescription liquids, CPAP machines, and injection supplies to the screening officer before screening starts. Keep medications in a separate pouch for rapid visual inspection.

Learn more about scanner differences and traveler rights in our Airport Security Screening Guide →

⚠️ Common Traveler Mistake to Avoid

The Mistake: Packing vital daily prescription medicines in checked luggage where they may be lost or delayed.

How to Avoid It: Always keep all prescription medications and critical health supplies in your personal item under the seat.

How to Pack Liquid Medications (Over 100ml) for a Flight

Declare liquid prescription medications to TSA officers before entering the screening line. Always verify specific airline carry-on size limits and pack delicate items securely to prevent baggage damage during transit.

Liquid Medications (Over 100ml) on a plane — FAQs

Can you bring Liquid Medications (over 100ml) in a carry-on?

Exempt from 3-1-1 liquids rule.

Can you pack Liquid Medications (over 100ml) in checked luggage?

Allowed in checked luggage (cabin recommended).

Why are there rules for liquid medications (over 100ml) on a plane?

Under federal aviation law and disability access regulations, medically necessary items, prescription pharmaceuticals, assistive equipment, and life-supporting supplies are granted explicit exemptions from standard baggage quotas and liquid volume limits to protect passenger health during travel.

Can I bring liquid medications (over 100ml) on an airplane?

Exempt from 3-1-1 liquids rule. In checked bags: Allowed in checked luggage (cabin recommended).

Last verified:

Verified against official sources. Rules change — for high-stakes items, confirm with your airline and the screening authority. Our verification method →