What is Banophen: Uses, Warnings & Interactions

Medically reviewed by Ashley WongPharm. D.
Licensed Pharmacist
Updated May 14, 2025  •  Published Dec 30, 2020
Fact Checked

Banophen overview

BRAND NAMES:

  • Banophen

Generic Names:

  • Diphenhydramine Hcl

Uses:

  • Treats symptoms of hay fever, allergies, and the common cold. These symptoms include sneezing, itching of the nose or throat, runny nose, and itchy or watery eyes.

Therapeutic Classes:

  • Antihistamine

Forms:

  • Tablet

  • Capsule

  • Liquid

How it’s taken:

  • By mouth

What is Banophen used for?

The Food and Drug Administration (FDA) has approved Banophen for the relief of symptoms related to:

  • Hay fever

  • Allergies

  • Common cold

This can include symptoms such as runny nose, sneezing, itchy eyes, and itchy throat.

Key takeaways

Key takeaways, according to a pharmacist:

  • Banophen is prescribed to treat symptoms of allergies, hay fever, or the common cold. 

  • Banophen is available in three forms: tablet, capsule, and liquid. 

  • The recommended dose of Banophen depends on your age and the form of Banophen you take. In general, you should not take more than 6 doses of Banophen in 24 hours. 

  • Banophen can cause severe drowsiness. Don’t drive or do anything that requires your focus until you know how the drug affects you. 

What form(s) does Banophen come in

  • Tablet

    • 25 mg

  • Capsule

    • 25 mg

    • 50 mg

  • Liquid

    • 12.5 mg/5mL

What are common Banophen doses?

  • Tablet

    • People 12 years of age and older: Take 25–50 mg by mouth every 4 to 6 hours. Do not take more than 6 doses in 24 hours. 

    • Children 6 years to 11 years old: Take 25 mg by mouth every 4 to 6 hours. Do not take more than 6 doses in 24 hours. 

    • Children under 6 years old: Not recommended for this age group.

  • Capsule

    • People 12 years of age and older: Take 25–50 mg by mouth every 4 to 6 hours. Do not take more than 6 doses in 24 hours. 

    • Children 6 years to 11 years old: Take 25 mg by mouth every 4 to 6 hours. Do not take more than 6 doses in 24 hours. 

    • Children under 6 years old: Not recommended for this age group.

  • Liquid

    • Take 5–10 mL by mouth every 4 to 6 hours. Do not take more than 6 doses in 24 hours.

Common Banophen prescriptions

  • Banophen
    100 capsules bottle

  • Banophen
    100 tablets bottle

  • Banophen
    1000 capsules bottle

  • Banophen
    473ml of 12.5mg/5ml bottle

  • Banophen
    24 capsules box

  • Banophen
    24 tablets box

  • Banophen
    25mg capsule

  • Banophen
    50mg capsule

How to take Banophen

  • Your doctor will tell you how much medication to take. Take the drug exactly as prescribed. Do not use more than directed. Doing so can increase your risk of side effects. 

  • Take Banophen with or without food. 

  • Banophen is available over the counter (OTC). If you are taking this medication without a prescription, be sure to read the product packaging for instructions on how to take it and important safety information. Ask your health care provider if you have any questions. 

  • Swallow Banophen tablets and capsules whole. Do not crush, break, or chew them. Doing so can increase your risk of serious side effects. 

  • Only use Banophen liquid with the dosing cup that comes with your medicine. Do not use household spoons or kitchen measuring devices because they aren’t as accurate. 

  • Store Banophen at room temperature and keep it away from moisture.

What to do if you miss a dose of Banophen

  • Talk to a healthcare provider if you realize you missed a dose of Banophen. Depending on what you’re taking the medication for and the timing of the missed dose, they may recommend that you take the missed dose. Or they may recommend that you skip the dose. 

Banophen contraindications

  • This medication is not right for everyone. Do not take Banophen if you’ve had an allergic reaction to its active ingredient, diphenhydramine, or any of its inactive ingredients.

Banophen warnings

  • Banophen can cause severe drowsiness. Do not drive or do anything that requires concentration until you know how this medication affects you. 

  • Drinking alcohol while taking Banophen can worsen side effects such as drowsiness. Due to this risk, it’s recommended to avoid alcohol while taking Banophen. 

  • Taking Banophen with certain other medications, including sedatives and tranquilizers, can also worsen drowsiness. 

  • The active ingredient in Banophen is diphenhydramine. Diphenhydramine is a common ingredient in many over-the-counter medications. You should not use Banophen with any other product that contains diphenhydramine, even diphenhydramine products that are used on the skin. Be sure to check the package labels of any medications you plan to take to ensure they don’t contain diphenhydramine. If you’re unsure, check with your pharmacist. 

  • Banophen should not be used to make a child sleepy. While drowsiness is a common side effect of the drug, Banophen may actually cause excitability in children. 

  • In general, Banophen is not recommended for older adults because they are at higher risk of adverse reactions from the drug. These include drowsiness, dry mouth, constipation, and confusion. 

  • Banophen can worsen certain health conditions. Be sure to talk to a healthcare professional before you use Banophen if you have glaucoma, breathing problems, such as emphysema or chronic bronchitis, or bladder or prostate problems. 

  • Banophen liquid contains sodium. Ask your healthcare provider if it’s safe to take Banophen if you’re on a low-sodium diet.

Banophen interactions

Banophen side effects

Possible side effects of Banophen include:

  • Drowsiness

  • Dizziness

  • Nausea

  • Vomiting

  • Dry mouth

  • Loss of appetite

  • Constipation

  • Headache

  • Muscle weakness

  • Excitement (especially in children)

  • Nervousness

Banophen may cause more serious side effects that could require medical attention. Seek medical attention if you develop vision problems or trouble with urination. Although rare, serious allergic reactions to Banophen are also possible.

Sources:

Medically reviewed by Ashley WongPharm. D.
Licensed Pharmacist

Ashley Wong, Pharm.D., has worked for healthcare companies where she translated complex drug information into easy-to-understand language for patients. She also served as a Senior Medical Information Specialist at a medical communications company, where she delivered clinically accurate drug information to healthcare providers and patients and compiled adverse event reports in accordance with the FDA's reporting guidelines.

... 

Subscribe to our savings newsletter

Health education, drug info, wellness & more

By clicking 'Subscribe', I agree to SingleCare's Terms & Conditions.