Important: This page is general information, not medical advice. It does not recommend or prescribe any treatment. Always consult your doctor or pharmacist before starting, stopping or changing any medicine.
Quick facts
- How it is given
- oral
- Type
- human otc drug
- Brand names
- HISTEX PD Drops New Formulation
- RxNorm ID
- 1926926
We do not publish dosing. How much of this medicine to take, how often, and for how long depends on your age, weight, kidney and liver function, other conditions and other medicines. That is a decision for the person who prescribes or dispenses it. Follow the directions on your own pack and ask your pharmacist if anything is unclear.
What it is used to treat
Uses temporarily relieves these symptoms due to hay fever (allergic rhinitis) or other upper respiratory allergies: runny nose sneezing itching of the nose or throat itchy, watery eyes
Warnings
Warnings Do not exceed recommended dosage. Ask a doctor before use if the child has a breathing problem such as emphysema or chronic bronchitis glaucoma Ask a doctor before use if the child is taking sedatives or tranquilizers When using this product excitability may occur, especially in children may cause drowsiness sedatives and tranquilizers may increase the drowsiness effect Stop use and ask a doctor if new symptoms occur Keep out of the reach of children. In case of overdose, get medical help or contact a Poison Control Center right away.
Ask a doctor before use if
Ask a doctor before use if the child has a breathing problem such as emphysema or chronic bronchitis glaucoma
Ask a doctor or pharmacist before use if
Ask a doctor before use if the child is taking sedatives or tranquilizers
When using this medicine
When using this product excitability may occur, especially in children may cause drowsiness sedatives and tranquilizers may increase the drowsiness effect
Stop use and see a doctor if
Stop use and ask a doctor if new symptoms occur
Storing it safely
Other Information Store at 15°-30° C (59°-86° F). Tamper evident by foil seal under cap. Do not use if foil seal is missing or broken.
Keeping it away from children
Keep out of the reach of children. In case of overdose, get medical help or contact a Poison Control Center right away.
Active ingredient
Active ingredient (in each 1 mL dropperful) Triprolidine HCl 1.25 mg
Other ingredients
Inactive ingredients bubble gum flavor, citric acid, glycerin, propylene glycol, purified water, sodium benzoate, sodium citrate, sorbitol solution, sucralose.
Before you take anything new
Tell your pharmacist or doctor about every medicine you take — including ones bought without a prescription, herbal products and supplements. Interactions are one of the most common avoidable causes of harm from medicines, and a pharmacist can check your full list in a couple of minutes.
This page is built from the openFDA record of the U.S. Food and Drug Administration's approved labelling for this product, effective 8 January 2025. Label text has been shortened and reformatted for readability; safety wording has not been altered in meaning. FDA labelling describes products approved in the United States — brand names, strengths, formulations and approved uses may differ in your country. Always read the leaflet that comes with your own pack. PocketsInfo is not affiliated with, and is not endorsed by, the FDA. Retrieved 2026-07-30.