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Home > Drugs > Anticholinergic antiemetics > Allergy relief (diphenhydramine hcl)
Anticholinergic antiemetics

Allergy relief (diphenhydramine hcl)

https://themeditary.com/drug/allergy-relief-diphenhydramine-hcl-5961.html
Medically Reviewed by Glamora Samuels, MD TheMediTary.Com | Reviewed: Aug 13, 2023  Additional Content by TheMediTary.Com

Generic name: diphenhydramine [ dye-fen-hye-dra-meen ]

Drug class: Anticholinergic antiemetics, Anticholinergic antiparkinson agents, Antihistamines, Miscellaneous anxiolytics, sedatives and hypnotics

Availability: Rx and/or otc

Pregnancy & Lactation: Risk data available

Brand names: Benadryl, Diphenhydramine, Unisom sleep gels, Compoz nighttime sleep aid, Diphedryl

Contents
Uses Warnings Before Taking Dosage Side effects Interactions
  • Allergy relief (diphenhydramine hcl) (Diphenhydramine [ dye-fen-hye-dra-meen ])-barr 059-50 mg-Pink-Capsule-shape Allergy relief (diphenhydramine hcl) 50 mg (barr 059)
  • Allergy relief (diphenhydramine hcl) (Diphenhydramine [ dye-fen-hye-dra-meen ])-MUTUAL 103 MUTUAL 103-25 mg-Pink & White-Capsule-shape Allergy relief (diphenhydramine hcl) 25 mg (MUTUAL 103 MUTUAL 103)
  • Allergy relief (diphenhydramine hcl) (Diphenhydramine [ dye-fen-hye-dra-meen ])-B-diphenhydramine citrate 19 mg-Pink-Round Allergy relief (diphenhydramine hcl) diphenhydramine citrate 19 mg (B)
  • Allergy relief (diphenhydramine hcl) (Diphenhydramine [ dye-fen-hye-dra-meen ])-RUGBY 3758 RUGBY 3758-25 mg-Pink / Clear-Capsule-shape Allergy relief (diphenhydramine hcl) 25 mg (RUGBY 3758 RUGBY 3758)
  • View all images

What is Allergy relief (diphenhydramine hcl)?

Allergy Relief (Diphenhydramine HCl) is an antihistamine that is used to treat sneezing, runny nose, watery eyes, hives, skin rash, itching, and other cold or allergy symptoms.

Allergy Relief (Diphenhydramine HCl) is also used to treat motion sickness, to induce sleep, and to treat certain symptoms of Parkinson's disease. Allergy Relief (Diphenhydramine HCl) sleep aid medicine is not for use in children younger than 12 years old.

There are many brands and forms of Allergy Relief (Diphenhydramine HCl) available. Not all brands are listed on this leaflet.

Allergy Relief (Diphenhydramine HCl) may also be used for purposes not listed in this medication guide.

Warnings

Use Allergy Relief (Allergy Relief (Diphenhydramine HCl) HCl) exactly as directed. Taking too much Allergy Relief (Diphenhydramine HCl) can lead to serious heart problems, seizures, coma, or death.

Do not use this medicine to make a child sleepy. Allergy Relief (Diphenhydramine HCl) sleep aid medicine is not for use in children younger than 12 years old.

How should I use Allergy relief (diphenhydramine hcl)

Use exactly as directed on the label, or as prescribed by your doctor. Allergy Relief (Diphenhydramine HCl) is only for short-term use until your symptoms clear up.

Taking too much Allergy Relief (Diphenhydramine HCl) can lead to serious heart problems, seizures, coma, or death.

Always follow directions on the medicine label about giving Allergy Relief (Diphenhydramine HCl) to a child. Do not use the medicine only to make a child sleepy. Death can occur from the misuse of antihistamines in very young children.

For motion sickness, take Allergy Relief (Diphenhydramine HCl) 30 minutes before you will be in a situation that causes you motion sickness (such as a long car ride, airplane or boat travel, amusement park rides, etc). Continue taking Allergy Relief (Diphenhydramine HCl) with meals and at bedtime for the rest of the time you will be in a motion-sickness situation.

As a sleep aid, take Allergy Relief (Diphenhydramine HCl) within 30 minutes before bedtime.

You must chew the chewable tablet before you swallow it.

Measure liquid medicine carefully. Use the dosing syringe provided, or use a medicine dose-measuring device (not a kitchen spoon).

Remove an orally disintegrating tablet from the package only when you are ready to take the medicine. Place the tablet in your mouth and allow it to dissolve, without chewing. Swallow several times as the tablet dissolves.

Call your doctor if the condition you are treating with Allergy Relief (Diphenhydramine HCl) does not improve, or if you have a fever with a headache, cough, or skin rash.

Do not use Allergy Relief (Diphenhydramine HCl) for longer than 2 weeks to treat sleep problems, or longer than 7 days to treat cold or allergy symptoms.

Allergy Relief (Allergy Relief (Diphenhydramine HCl) HCl) can affect the results of allergy skin tests. Tell any doctor who treats you that you are using Allergy Relief (Diphenhydramine HCl).

Store at room temperature away from moisture and heat.

Detailed Diphenhydramine dosage information
Allergy relief (diphenhydramine hcl) Dosage information (more detail)

Before Taking

You should not use Allergy Relief (Diphenhydramine HCl) if you are allergic to it.

Ask a doctor or pharmacist if this medicine is safe to use if you have ever had:

  • an enlarged prostate or urination problems;

  • asthma, chronic obstructive pulmonary disease (COPD), or other breathing disorder;

  • glaucoma; or

  • a thyroid disorder.

Ask a doctor before using this medicine if you are pregnant or breastfeeding. Allergy Relief (Diphenhydramine HCl) may slow breast milk production.

What happens if I miss a dose?

Since Allergy Relief (Allergy Relief (Diphenhydramine HCl) HCl) is used when needed, you may not be on a dosing schedule. Skip any missed dose if it's almost time for your next dose. Do not use two doses at one time.

What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222. An overdose of Allergy Relief (Diphenhydramine HCl) can be fatal.

Overdose symptoms may include vomiting, confusion, severe drowsiness, ringing in your ears, no urination, very dry eyes and mouth, dilated pupils, fast heartbeats, tremor, agitation, hallucinations, or seizure.

What should I avoid while using Allergy relief (diphenhydramine hcl)?

Avoid driving or hazardous activity until you know how Allergy Relief (Allergy Relief (Diphenhydramine HCl) HCl) will affect you. Your reactions could be impaired.

Drinking alcohol can increase certain side effects of Allergy Relief (Diphenhydramine HCl).

Ask a doctor or pharmacist before using any other medicine that may contain Allergy Relief (Diphenhydramine HCl). This includes medicines for sleep, cold/allergy symptoms, or anti-itch medicine used on the skin. Using too much Allergy Relief (Diphenhydramine HCl) may lead to a fatal overdose.

Allergy relief (diphenhydramine hcl) side effects

Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Stop using Allergy Relief (Diphenhydramine HCl) and call your doctor at once if you have:

  • severe drowsiness; or

  • painful or difficult urination.

Side effects such as dry mouth, constipation, and confusion may be more likely in older adults.

Common side effects of Allergy Relief (Diphenhydramine HCl) may include:

  • drowsiness;

  • dry eyes, blurred vision;

  • dry mouth, nose, or throat;

  • decreased urination;

  • constipation;

  • feeling restless or excited (especially in children); or

  • day-time drowsiness or "hangover" feeling after night-time use.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

See more: Allergy relief (diphenhydramine hcl) Side Effects

What other drugs will affect Allergy relief (diphenhydramine hcl)?

Ask a doctor or pharmacist before using Allergy Relief (Diphenhydramine HCl) with any other medicines, especially drugs that can cause drowsiness (such as opioid medication, sleep medicine, a muscle relaxer, or medicine for anxiety or seizures). Tell your doctor about all your current medicines and any medicine you start or stop using. This includes prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible interactions are listed here.

More about Allergy relief (diphenhydramine hcl) (Diphenhydramine [ dye-fen-hye-dra-meen ])

Dosage information
Allergy relief (diphenhydramine hcl) Side Effects
Patient tips
During pregnancy
Drug images
Side effects
Breastfeeding Warnings
Drug class: Anticholinergic antiemetics

Patient resources

Diphenhydramine (Sleep Aid) Capsules and Tablets
Diphenhydramine Capsules and Tablets
Diphenhydramine (Sleep Aid) Orally Disintegrating Tablets
Diphenhydramine Chewable Tablets and Orally-Disintegrating Tablets

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