Allergy Medication (OTC)
Allergy medication in pill form is allowed in unlimited quantities; liquid antihistamines follow the medical liquids exception.
Carry-on
Allowed
Checked
Allowed
Carry-on details
Allowed. Antihistamine tablets and capsules (like Claritin, Zyrtec, or Benadryl) are solid medication with no quantity limit — they pass through the X-ray with the rest of your bag. If you're carrying liquid allergy medicine instead, it's exempt from the standard 3.4 oz (100 ml) carry-on limit as a medically necessary liquid, but declare it to the TSA officer at the start of screening so it can be tested separately.
Checked-bag details
Allowed without restriction, in pill or liquid form.
Special instructions
For liquid children's allergy medicine specifically, see the rules for children's liquid medication — the same medical-liquid exception applies.
Related rules
FAQ
- Can I bring a full bottle of liquid Benadryl over 3.4 oz?
- Yes. Declare it to the TSA officer at the checkpoint as a medically necessary liquid, and it's exempt from the standard limit in reasonable quantities.
- Is there a limit on allergy pills?
- No, tablets and capsules have no quantity limit in carry-on or checked baggage.
Related items
Source: TSA — What Can I Bring? · Last verified: 2026-07-30
Final decision rests with the security officer at the checkpoint.