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Diphenhydramine/Phenylephrine Oral Solution (ANTIHISTAMINES/DECONGESTANTS – ORAL)

Diphenhydramine/Phenylephrine Oral Solution (ANTIHISTAMINES/DECONGESTANTS - ORAL)

This medicine is used for the following purposes:

  • allergy symptoms
  • stuffy nose

Generic Name: Diphenhydramine/Phenylephrine

Instructions

Drink the medicine.

Measure the dose of liquid medicine carefully. Use the measuring device that comes with the medicine. If you do not have one, please ask your pharmacist for help.

Take the medicine with 250 mL (1 cup) of water.

You may take with food to prevent stomach upset.

To relieve dry mouth, chew gum, suck on hard candy/ice chips, drink extra water, or use a saliva substitute.

Store at room temperature away from heat, light, and moisture. Do not keep in the bathroom.

Drink extra water while on this medicine. Adults should try to drink 6-8 cups (48 to 64 oz.) of water every day.

If you forget to take a dose on time, take it as soon as you remember. If it is almost time for the next dose, do not take the missed dose. Return to your normal schedule. Do not take 2 doses at one time.

Drug interactions can change how medicines work or increase risk for side effects. Tell your health care providers about all medicines taken. Include prescription and over-the-counter medicines, vitamins, and herbal medicines. Speak with your doctor or pharmacist before starting or stopping any medicine.

Tell your doctor if symptoms do not get better or if they get worse.

This medicine may affect your blood sugar levels. If you have diabetes, talk to your doctor before changing the dose of your diabetes medicine.

Do not take the medicine more than six times during 24 hours.

Cautions

This medicine is not recommended for use in children younger than 6.

Tell your doctor and pharmacist if you ever had an allergic reaction to a medicine.

It is very important that you carefully measure the amount of medicine you take. Your healthcare provider or pharmacist should show you the correct way to measure this medicine.

Do not use the medication any more than instructed.

If possible, avoid using with alcohol, marijuana, or other medicines that can cause dizziness or drowsiness. These include allergy/cold products, muscle relaxers, sleep aids, and pain relievers.

Your ability to stay alert or to react quickly may be impaired by this medicine. Do not drive or operate machinery until you know how this medicine will affect you.

Call the doctor if there are any signs of confusion or unusual changes in behavior.

Tell the doctor or pharmacist if you are pregnant, planning to be pregnant, or breastfeeding.

Side Effects

The following is a list of some common side effects from this medicine. Please speak with your doctor about what you should do if you experience these or other side effects.

  • constipation
  • dizziness or drowsiness
  • headaches
  • nausea
  • stomach upset or abdominal pain

Call your doctor or get medical help right away if you notice any of these more serious side effects:

  • changes in memory, mood, or thinking
  • confusion
  • hallucinations (unusual thoughts, seeing or hearing things that are not real)
  • fast or irregular heart beats
  • mood changes
  • ringing in the ears
  • seizures
  • difficulty or discomfort urinating
  • blurring or changes of vision

A few people may have an allergic reaction to this medicine. Symptoms can include difficulty breathing, skin rash, itching, swelling, or severe dizziness. If you notice any of these symptoms, seek medical help quickly.

Please speak with your doctor, nurse, or pharmacist if you have any questions about this medicine.

This information does not replace the advice of a doctor. Ignite Healthwise, LLC, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.

Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Ignite Healthwise, LLC.

This information does not replace the advice of a doctor. Ignite Healthwise, LLC, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.