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Professional Information — Dayhist-1, Tavist, Wal-Hist 12 Hr Relief

Full FDA prescribing details for healthcare professionals.

Last updated · May 16, 2026Source: DailyMed ↗
Highlights of Prescribing InformationRevised: Apr 09, 2012
  • Safety sealed: do not use if the imprinted bottle seal is open or torn.
  • Store at 20°-25°C (68°-77°F).

Indications and Usage

Temporarily relieves these symptoms of the common cold, hay fever, or other upper respiratory allergies:

  • runny nose
  • itchy, watery eyes
  • sneezing
  • itching of the nose or throat

Dosage and Administration

adults and children 12 years and older:

1 tablet every 12 hours; not more than 2 tablets in 24 hours

children under 12 years:

ask a doctor

Sources

RxCUI: 857416

NDC: 7811358

Last fetched: May 16, 2026

Source: DailyMed ↗

⚠️ Disclaimer

This information is for educational purposes only and is not medical advice. Always consult your doctor, pharmacist, or other licensed healthcare professional before starting, stopping, or changing any medicine. Read full medical disclaimer.