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Benadryl Dehydration Side Effect Reports


The following Benadryl Dehydration side effect reports were submitted by healthcare professionals and consumers.

This information will help you understand how side effects, such as Dehydration, can occur, and what you can do about them.

A side effect could appear soon after you start Benadryl or it might take time to develop.


Failure To Thrive, Cachexia, Malnutrition, Dehydration, Renal Failure Acute, Hepatorenal Syndrome

This Dehydration side effect was reported by a physician from US. A 51-year-old patient (weight:NA) experienced the following symptoms/conditions: hypersensitivity. The patient was prescribed Benadryl (dosage: 50 Mg, Cyclic (day 1, 8 And 15) Every 21 Days), which was started on Apr 25, 2013. Concurrently used drugs: NA. When starting to take Benadryl the consumer reported the following symptoms:
  • Failure To Thrive
  • Cachexia
  • Malnutrition
  • Dehydration
  • Renal Failure Acute
  • Hepatorenal Syndrome
The patient was hospitalized. These side effects may potentially be related to Benadryl.
Renal Impairment, Dehydration, Pruritus

This Dehydration Benadryl Allergy Ultratab side effect was reported by a consumer or non-health professional from US on May 08, 2013. A Female , 71 years of age, weighting 160.0 lb, was treated with Benadryl Allergy Ultratab. The patient presented the following health conditions:
  • Renal Impairment
  • Dehydration
  • Pruritus
. Benadryl Allergy Ultratab dosage: NA. Additional drugs used at the same time: NA. The patient was hospitalized.
Clostridium Difficile Colitis, Pneumonia, Dehydration

This is a Benadryl side effect report of a 64-year-old female patient (weight:NA) from UNITED STATES, suffering from the following symptoms/conditions: NA, who was treated with Benadryl (dosage:Ongoing, start time: Jan 06, 2011), combined with: NA., and developed a serious reaction and a Dehydration side effect. The patient presented with:
  • Clostridium Difficile Colitis
  • Pneumonia
  • Dehydration
which developed after the beginning of treatment. The patient was hospitalized. This side effect report can indicate a possible existence of increased vulnerability to Benadryl treatment in female patients suffering from NA, resulting in Dehydration.
Neurotoxicity, Product Substitution Issue, Vomiting, Dehydration, Angioedema, Nausea

A 60-year-old female patient (weight: NA) from UNITED STATES with the following symptoms: NA started Benadryl treatment (dosage: NA) on May 31, 2012. Soon after starting Benadryl treatment, the consumer experienced several side effects, including:
  • Neurotoxicity
  • Product Substitution Issue
  • Vomiting
  • Dehydration
  • Angioedema
  • Nausea
. Concurrently used drugs:
  • Hydrocortisone Cream
  • Prednisone
  • Rite Aid Compare To Eucerin Mois 160z -11b- 454 G Rite Aid Corporation (Used Hand Fuls 2-3 Times Top)
  • Levoceterizine
This finding indicates that some patients can be more vulnerable to developing Benadryl side effects, such as Dehydration.
Rectal Haemorrhage, Dehydration, Renal Failure

A patient from UNITED STATES was prescribed and started Benadryl on May 16, 2012. Patient felt the following Benadryl side effects: rectal haemorrhage, dehydration, renal failure Additional patient health information: male , 26 years of age, The consumer reported the following symptoms: was diagnosed with and. Benadryl dosage: NA. Concurrently used drugs:
  • Promethazine
  • Primaxin (500 Mg, 3x/day)
  • Cefoxitin (2 G, 3x/day)
  • Amikacin (750 Mg, 1x/day)
  • Insulin (Unk)
  • Zithromax (250 Mg, Daily)
The patient was hospitalized.
Crohn's Disease, Vomiting, White Blood Cell Count Increased, Loss Of Consciousness, Road Traffic Accident, Nausea, Dehydration, Headache

This report suggests a potential Benadryl Dehydration side effect(s) that can have serious consequences. A patient from CANADA (weight:NA) was diagnosed with the following health condition(s): NA and used Benadryl (dosage: NA) starting Apr 09, 2012. Soon after starting Benadryl the patient began experiencing various side effects, including:
  • Crohn's Disease
  • Vomiting
  • White Blood Cell Count Increased
  • Loss Of Consciousness
  • Road Traffic Accident
  • Nausea
  • Dehydration
  • Headache
Drugs used concurrently:
  • Remicade (Loding Dose 2)
  • Remicade (First Infusion)
  • Remicade
  • Tylenol (caplet)
  • Hydrocortisone
The patient was hospitalized. Although Benadryl demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Dehydration, may still occur.
Renal Failure Acute, Dehydration, Diarrhoea

An adverse event was reported by a health professional on Feb 14, 2012 by a Female taking Benadryl (dosage: NA) . Location: UNITED STATES , 73 years of age, weighting 352.7 lb, patient began experiencing various side effects, including: Directly after treatment started, patient experienced the unwanted or unexpected Benadryl side effects: renal failure acute, dehydration, diarrhoea. Additional medications/treatments:
Associated medications used:
  • Depo-medrol
  • Multihance (Given At Around 20:14)
The patient was hospitalized.
Hypokalaemia, Arterial Occlusive Disease, Dehydration, Pulse Absent, Unresponsive To Stimuli

This Dehydration problem was reported by a physician from UNITED STATES. A female patient (weight: NA) was diagnosed with the following medical condition(s): NA.On Nov 21, 2010 a consumer started treatment with Benadryl (dosage: NA). The following drugs/medications were being taken at the same time:
  • Actos
  • Tramadol Hcl
  • Reglan
  • Xanax
  • Glipizide
  • Bactrim
  • Insulin
  • Protonix
When commencing Benadryl, the patient experienced the following unwanted symptoms /side effects:
  • Hypokalaemia
  • Arterial Occlusive Disease
  • Dehydration
  • Pulse Absent
  • Unresponsive To Stimuli
The patient was hospitalized. Although all drugs are carefully tested before they are licensed for use, they carry potential side effect risks. Some side effects, such as Dehydration, may become evident only after a product is in use by the general population.
Flank Pain, Dysuria, Dehydration, Pyelonephritis Acute

This is a Benadryl side effect report of a female patient (weight: NA) from UNITED STATES. The patient developed the following symptoms/conditions: NA and was treated with Benadryl (dosage: Unk Df, Unk) starting Sep 01, 2010. Concurrently used drugs:
  • Potassium Chloride (Unk Df, Unk)
  • Neurontin (300 Mg, Unk)
  • Prochlorperazine Maleate (Unk Df, Unk)
  • Multivitamin ^lappe^ (Unk Df, Unk)
  • Phenergan (Unk Df, Unk)
  • Neulasta (Unk Df, Unk)
  • Solu-medrol (Unk Df, Unk)
  • Megace (Unk Df, Unk)
Soon after that, the consumer experienced the following of symptoms:
  • Flank Pain
  • Dysuria
  • Dehydration
  • Pyelonephritis Acute
The patient was hospitalized. This opens a possibility that Benadryl could cause Dehydration and that some female patients may be more susceptible.
Dehydration, Diarrhoea, Renal Failure Acute

This Dehydration side effect was reported by a health professional from UNITED STATES on Feb 14, 2012. A female patient from UNITED STATES , 73 years of age, weighting 352.7 lb, was treated with Benadryl. Directly after treatment started, patient experienced the unwanted or unexpected Benadryl side effects: dehydration, diarrhoea, renal failure acute. Benadryl dosage: NA.
Associated medications used:
  • Depo-medrol
  • Multihance (Given At Around 20:14)
The patient was hospitalized. These side effects may potentially be related to Benadryl.
Dehydration, Diarrhoea, Renal Failure Acute

This Dehydration side effect was reported by a health professional from UNITED STATES. A 73-year-old female patient (weight:NA) experienced the following symptoms/conditions: NA. The patient was prescribed Benadryl (dosage: NA), which was started on Jan 31, 2012. Concurrently used drugs:
  • Depo-medrol
  • Multihance
When starting to take Benadryl the consumer reported the following symptoms:
  • Dehydration
  • Diarrhoea
  • Renal Failure Acute
The patient was hospitalized. These side effects may potentially be related to Benadryl.
Atrial Fibrillation, Hypokinesia, Hypotension, Dehydration, Hypertension, Proteus Infection, Brain Midline Shift, Urinary Tract Infection, Haemorrhage Intracranial

This Dehydration Benadryl side effect was reported by a consumer or non-health professional from UNITED STATES on Jan 18, 2012. A male , weighting 446.0 lb, was treated with Benadryl. The patient presented the following health conditions:
  • Atrial Fibrillation
  • Hypokinesia
  • Hypotension
  • Dehydration
  • Hypertension
  • Proteus Infection
  • Brain Midline Shift
  • Urinary Tract Infection
  • Haemorrhage Intracranial
. Benadryl dosage: NA. Additional drugs used at the same time:
  • Lorazepam
  • Zinc Sulfate
  • Zyrtec
  • Coumadin
  • Bisoprolol Fumarate
  • Cardizem
  • Cordarone
  • Klor-con
Dehydration, Fall, Laceration, Aphagia, Clostridial Infection, Breast Cancer, Contusion, Abdominal Pain, Diarrhoea

This is a Benadryl side effect report of a female patient (weight:NA) from UNITED STATES, suffering from the following symptoms/conditions: psoriasis,gastrooesophageal reflux disease,hypertension, who was treated with Benadryl (dosage:NA, start time: May 01, 2010), combined with:
  • Prilosec
  • Cozaar
  • Propranolol
  • Hydrochlorothiazide
  • Humira
  • Humira
  • Tylenol-500 (1000 Mg Twice A Day)
  • Taclonex
, and developed a serious reaction and a Dehydration side effect. The patient presented with:
  • Dehydration
  • Fall
  • Laceration
  • Aphagia
  • Clostridial Infection
  • Breast Cancer
  • Contusion
  • Abdominal Pain
  • Diarrhoea
which developed after the beginning of treatment. The patient was hospitalized. This side effect report can indicate a possible existence of increased vulnerability to Benadryl treatment in female patients suffering from psoriasis,gastrooesophageal reflux disease,hypertension, resulting in Dehydration.
Malignant Melanoma, Diarrhoea, Dehydration

A 62-year-old patient (weight: NA) from INDIA with the following symptoms: rash,pain,pruritus started Benadryl treatment (dosage: NA) on Sep 10, 2010. Soon after starting Benadryl treatment, the consumer experienced several side effects, including:
  • Malignant Melanoma
  • Diarrhoea
  • Dehydration
. Concurrently used drugs:
  • Oxycodone Hcl
The patient was hospitalized. This finding indicates that some patients can be more vulnerable to developing Benadryl side effects, such as Dehydration.
Renal Failure, Thrombocytopenia, Neutropenia, Haematuria, Tumour Lysis Syndrome, Arrhythmia, Dehydration

A patient from UNITED STATES was prescribed and started Benadryl on Jul 08, 2011. After Benadryl was administered, patient encountered several Benadryl side effects: renal failure, thrombocytopenia, neutropenia, haematuria, tumour lysis syndrome, arrhythmia, dehydration Additional patient health information: male , weighting 148.8 lb, The consumer reported the following symptoms: was diagnosed with and. Benadryl dosage: Unk. Concurrently used drugs:
  • Sodium Bicarbonate
  • Acetaminophen (Unk)
  • Clofarabine (25 Mg, Qdx5)
  • Roxanol (Unk)
  • Vicodin (Unk)
  • Compazine (Unk)
The patient was hospitalized.
Cardio-respiratory Arrest, Vomiting, Dehydration, Neutropenia, Diarrhoea, Hypotension

This report suggests a potential Benadryl Dehydration side effect(s) that can have serious consequences. A 76-year-old female patient from UNITED STATES (weight:NA) was diagnosed with the following health condition(s): NA and used Benadryl (dosage: NA) starting Jun 28, 2010. Soon after starting Benadryl the patient began experiencing various side effects, including:
  • Cardio-respiratory Arrest
  • Vomiting
  • Dehydration
  • Neutropenia
  • Diarrhoea
  • Hypotension
Drugs used concurrently:
  • Lisinopril
  • Hydrochlorothiazide
  • Decadron
  • Aspirin
  • Albuterol Sulfate Autohaler
  • Vistaril
  • Paclitaxel
  • Zometa
The patient was hospitalized. Although Benadryl demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Dehydration, may still occur.
Nausea, Vomiting, Dehydration, Asthenia, Neutropenia, Tachycardia, Feeling Cold, Respiratory Distress

An adverse event was reported by a consumer or non-health professional on Mar 08, 2011 by a Female taking Benadryl (dosage: NA) . Location: UNITED STATES , 76 years of age, weighting 119.0 lb, patient began experiencing various side effects, including: Patient felt the following Benadryl side effects: nausea, vomiting, dehydration, asthenia, neutropenia, tachycardia, feeling cold, respiratory distress. Additional medications/treatments:
Multiple prescriptions taken:
  • Carboplatin (6df:6auc)
  • Zantac
  • Amlodipine Besylate
  • Bevacizumab
  • Hydrochlorothiazide
  • Albuterol
  • Zofran
  • Restoril
The patient was hospitalized.
Cardiac Operation, Dehydration, Myocardial Infarction

This Dehydration problem was reported by a consumer or non-health professional from UNITED STATES. A female patient (weight: NA) was diagnosed with the following medical condition(s): hypersensitivity.On NS a consumer started treatment with Benadryl (dosage: Text:one Tablet Twice A Day). The following drugs/medications were being taken at the same time:
  • Anticoagulants
When commencing Benadryl, the patient experienced the following unwanted symptoms /side effects:
  • Cardiac Operation
  • Dehydration
  • Myocardial Infarction
Although all drugs are carefully tested before they are licensed for use, they carry potential side effect risks. Some side effects, such as Dehydration, may become evident only after a product is in use by the general population.
Dehydration, Malaise, Nausea, Product Quality Issue, Vomiting, Weight Decreased

This is a Benadryl side effect report of a 55-year-old patient (weight: NA) from UNITED STATES. The patient developed the following symptoms/conditions: hypersensitivity,diabetes mellitus and was treated with Benadryl (dosage: Text:one Every Six To Eight Hours) starting Aug 01, 2009. Concurrently used drugs:
  • Lantus (Text:120 Units Nightly)
  • Humalog (Text:15 Or 150 Units Four Times Daily)
  • Potassium Chloride (Text:8meqs 3xs Per Daily)
  • Omeprazole
  • Robaxin (Text:750 Mg)
  • Caduet
  • Flomax
  • Lyrica
Soon after that, the consumer experienced the following of symptoms:
  • Dehydration
  • Malaise
  • Nausea
  • Product Quality Issue
  • Vomiting
  • Weight Decreased
This opens a possibility that Benadryl could cause Dehydration and that some patients may be more susceptible.
Dehydration, Malaise, Nausea, Vomiting, Weight Decreased

This Dehydration side effect was reported by a consumer or non-health professional from UNITED STATES on Feb 17, 2010. A patient from UNITED STATES , 55 years of age, weighting 196.0 lb, was diagnosed with and was treated with Benadryl. Patient felt the following Benadryl side effects: dehydration, malaise, nausea, vomiting, weight decreased. Benadryl dosage: Text:one Every Six To Eight Hours.
Multiple prescriptions taken:
  • Lantus (Text:120 Units)
  • Humalog (Text:15 Or 150 Units As Needed)
  • Potassium Chloride (Text:8meqs 3xs Per Daily)
  • Omeprazole (Text:40mg)
  • Robaxin (Text:750 Mg)
  • Caduet (Text:10/80mg)
  • Flomax (Text:0.4mg)
  • Lyrica (Text:75mg)
These side effects may potentially be related to Benadryl.

DISCLAIMER: ALL DATA PROVIDED AS-IS, refer to terms of use for additional information.

Benadryl Dehydration Causes and Reviews


When you're dehydrated, your body doesn't have enough fluid and electrolytes to work properly. An average person on an average day needs about 3 quarts of water. But if you're out in the hot sun or are exercising a lot, you need a lot more than that. You can also become dehydrated if you are vomiting, have diarrhea, or are sweating a lot. People who are elderly, very young, taking certain medications, or have a chronic illness have a greater risk.

Signs of Dehydration in adults include

  • Being thirsty
  • Urinating less often than usual
  • Dark-colored urine
  • Dry skin
  • Feeling tired
  • Dizziness and fainting

Signs of Dehydration in babies and young children include a dry mouth and tongue, crying without tears, no wet diapers for 3 hours or more, a high fever and being unusually sleepy or drowsy.

If you think you're dehydrated, drink small amounts of water over a period of time. Drinking too much all at once can overload your stomach and make you throw up. If you are exercising in the heat and losing a lot of minerals in sweat, sports drinks can be helpful. Avoid any drinks that have caffeine.

NIH: National Institutes of Health


Benadryl Dehydration Reviews

Sun, 04 Sep 2011

Can I die from taking this many. Is it physicly addicting? Sorry about my spelling.

Mon, 18 Jul 2011

I loved these strips. I have had allergic reactions to my own allergy shots. After waiting at the Dr.'s office for 15 minutes after my allergy shot, I leave to go shopping. Sometimes I can feel a little thickening in my throat, similar to when I've had a really bad reaction and had to go to the ER for help, or went back to the Dr.'s office for a shot of epinepherine. When I feel just a small reaction beginning, I have put one of the Benadryl Quick Dissolve Strips on my tongue. I get a pretty fast result and I can continue shopping rather than worrying about a worse reaction.

Now, when I went to buy more of this product, it isn't available at any local stores, or on line at safe sites. Each store tells me that people are coming in and wanting them and getting upset when they can't find them.

Why were these strips taken off the market?

Sun, 21 Mar 2010
Does taking too much Benadryl cause a person to fall asleep and not wake up?
Wed, 01 Sep 2010
It was given to me in a hospital through emergency room, for nauseau. Nusrse said that they use it for that as well. Is true and can it be usedat home for the same?
Thu, 24 Mar 2011
My son is allergic to children's Benadryl. It causes him to develop eye infections (conjunctivitus).
Sat, 30 Apr 2011
I've noticed that it when I am with my partner it makes me sensitive, but I am not able to be aroused. Is anyone else having the same issue. I've been taking it for alergies since I was a teenager. Its the only thing that has ever worked for me.
DISCLAIMER: ALL DATA PROVIDED AS-IS, refer to terms of use for additional information.

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