Diphenhydramine Oral Suspension (box of 1 bottle)
Diphenhydramine Oral Suspension (box of 1 bottle)
*Packaging color may differ according to distribution region.

Diphenhydramine Oral Suspension

Diphenhydramine Oral Suspension is an antihistamine for oral use. AdvaCare Pharma manufactures this oral suspension in its ISO/GMP-approved facilities with attention to quality, safety, and efficacy.



What is Diphenhydramine?

Therapeutic Class:

Active Ingredients: Diphenhydramine

Diphenhydramine Oral Suspension is an antihistamine drug used to relieve symptoms like runny nose, sneezing, itchy/watery eyes, and itchy nose or throat, caused by allergies, hay fever, or the common cold. It may also be used to help aid sleep. This product is recommended for adults and children over 6 years old.

This medicine may be used to treat nausea, vomiting, or motion sickness. It is also used to reduce tremors and muscle stiffness caused by Parkinson's disease or involuntary movements caused by certain psychiatric drugs.

Diphenhydramine is an antihistamine. It works by blocking acetylcholine.

Diphenhydramine Oral Suspension is produced and exported by AdvaCare Pharma. This medicine is manufactured in our facilities in China, India, and the USA. These production factories are GMP certified and are regularly inspected to ensure they meet health, safety, and environmental standards.

Why are we a quality Diphenhydramine manufacturer?

AdvaCare Pharma, a GMP-compliant pharmaceutical company, specializes in the manufacture of Diphenhydramine Suspension and other high-quality pharmaceutical medicines in suspension form. Our manufacturing facilities' strategic placement ensures full control over the supply chain, ensuring enhanced product quality and decreased costs for transport and import. Diphenhydramine Oral Suspension is a part of our extensive catalog of products that are available for global distribution.


What is Diphenhydramine Oral Suspension used for?

It's used to:

  • relieve allergy symptoms, like rash, itching, and runny nose.
  • treat and prevent symptoms associated with motion sickness.

How is Diphenhydramine Oral Suspension used?

This medication has been manufactured as a liquid to be taken orally. This medication can be taken with or without food.

What dose should be taken?

For allergic or hypersensitivity reactions in infants, children, and adolescents, the usual dose is 1-1.5mg/kg per dose, taken 3-4 times per day. The maximum amount per dose is 25-50mg. The maximum dosage is 5mg/kg per day.

For symptoms associated with allergic rhinitis, the common, cold, cough, or other ailments in children between 6 and 12 years old, the usual dose is 12.5 to 25mg, taken every 4-6 hours as needed.

For adults, the usual dose is 25-50mg, taken every 4-6 hours.

Refer to a doctor or pharmacist for guidelines on dosage. Do not exceed what they advise.

Side Effects

As with all pharmaceuticals, some unwanted effects can occur from the use of Diphenhydramine Oral Suspension.

Common side effects include, but may not be limited to:

  • drowsiness
  • dizziness
  • gastrointestinal effects (constipation, upset stomach)
  • blurry vision
  • dry mouth

Seek immediate medical attention if the following develop:

  • signs of an allergic reaction, like rash, itching, or difficulty breathing
  • seizures

Talk with a doctor as soon as possible if you experience:

  • mental/mood changes, like confusion
  • difficulty with urination
  • tachycardia

For a comprehensive list of all side effects, consult a doctor or pharmacist.

If any symptom persists or gets worse, or any new symptoms appear, please call your doctor.


Do NOT use Diphenhydramine Oral Suspension if: • You are allergic or hypersensitive to any of the ingredients.

This medication may not be suitable for people with certain conditions. It is important to consult with a doctor if you have any health conditions, including:

  • respiratory diseases like asthma or emphysema
  • glaucoma
  • heart problems
  • hypertension
  • liver disease
  • seizures
  • stomach problems like an ulcer
  • hyperthyroidism
  • an enlarged prostate or another condition that causes urination problems

This medicine should only be used during pregnancy and breastfeeding if the benefits outweigh the risks. Consult a doctor or healthcare professional before treatment.

Due to possible drug interactions, consult with your doctor about any medications you are taking before your treatment. Some drugs known to interact include other antihistamines, alcohol, cannabis, sleep/anxiety drugs (like alprazolam or zolpidem), muscle relaxants, or opioids (like codeine).

Do not drive or operate heavy machinery until the effects of the medication are clear.

Diphenhydramine may interact with some types of laboratory tests, including allergy skin tests.

*Regulatory compliance may vary according to production standard, import requirements and/or manufacturing origin.

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As an industry leader, we are aware of our responsibility to provide affordable and sustainable solutions to improve healthcare worldwide.

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