Compare Side Effects

% of total side effects reported by users. DISCLAIMER: ALL DATA PROVIDED AS-IS. Data Source: openfda.gov.
Side Effect Benadryl Hydroxyzine
NAUSEA 3.7% 3.1%
DYSPNOEA 3.4% 2.3%
FATIGUE 3.3% 2.6%
COMPLETED SUICIDE 0% 2.7%
HEADACHE 2.6% 2.2%
PRURITUS 2.5% 2.1%
VOMITING 2.4% 2.2%
DRUG INEFFECTIVE 2% 2.4%
RASH 2.4% 1.9%
INFUSION RELATED REACTION 2.4% 0%
PAIN 2.3% 2.3%
DIARRHOEA 2.1% 2.1%
DIZZINESS 1.9% 1.8%
URTICARIA 1.9% 1.2%
OFF LABEL USE 1.9% 1%
DEATH 1.8% 1.6%
PYREXIA 1.8% 1.5%
ANXIETY 1.4% 1.8%
TOXICITY TO VARIOUS AGENTS 0.5% 1.8%
ASTHENIA 1.6% 1.4%
INSOMNIA 1.3% 1.6%
DEPRESSION 1% 1.5%
MALAISE 1.3% 1.4%
ARTHRALGIA 1.4% 1.2%
FALL 0.9% 1.4%
HYPERSENSITIVITY 1.4% 0.7%
COUGH 1.3% 1.1%
PNEUMONIA 0.9% 1.3%
CARDIAC ARREST 0% 1.3%
FLUSHING 1.3% 0%
CHEST PAIN 1.2% 1.2%
PAIN IN EXTREMITY 1.2% 1.1%
BACK PAIN 1.2% 1.1%
ABDOMINAL PAIN 1.1% 1.2%
HYPERTENSION 0.8% 1.2%
ERYTHEMA 1.2% 0.7%
CHILLS 1.2% 0.5%
WEIGHT DECREASED 1.1% 1.1%
HYPOTENSION 1.1% 1.1%
SOMNOLENCE 1.1% 1%
ANAEMIA 0.9% 1.1%
CONDITION AGGRAVATED 0.5% 1.1%
TREMOR 1% 1%
FEELING ABNORMAL 1% 0.9%
WEIGHT INCREASED 0.8% 1%
CHEST DISCOMFORT 1% 0%
OEDEMA PERIPHERAL 0.8% 0.9%
DECREASED APPETITE 0.8% 0.9%
CONSTIPATION 0.9% 0.8%
DRUG HYPERSENSITIVITY 0.9% 0.7%
PARAESTHESIA 0.9% 0.6%
BLOOD PRESSURE INCREASED 0.9% 0.6%
OVERDOSE 0.5% 0.9%
DRUG ABUSE 0% 0.9%
DEHYDRATION 0.8% 0.8%
MUSCLE SPASMS 0.7% 0.8%
ABDOMINAL PAIN UPPER 0.7% 0.8%
HYPOAESTHESIA 0.8% 0.6%
CONFUSIONAL STATE 0.6% 0.8%
DRUG DOSE OMISSION 0.4% 0.8%
RESPIRATORY ARREST 0% 0.8%
DRUG INTERACTION 0% 0.8%
CARDIO-RESPIRATORY ARREST 0% 0.8%
DIABETES MELLITUS 0% 0.8%
GAIT DISTURBANCE 0.6% 0.7%
LOSS OF CONSCIOUSNESS 0.7% 0.6%
URINARY TRACT INFECTION 0.6% 0.7%
HYPERHIDROSIS 0.7% 0.6%
HEART RATE INCREASED 0.7% 0.5%
PRODUCT USE ISSUE 0.7% 0%
SUICIDAL IDEATION 0% 0.7%
POISONING 0% 0.7%
MYALGIA 0.6% 0.6%
TACHYCARDIA 0.6% 0.5%
VISION BLURRED 0.5% 0.6%
SINUSITIS 0.5% 0.6%
RENAL FAILURE 0.4% 0.6%
CONVULSION 0.4% 0.6%
ASTHMA 0.4% 0.6%
RENAL FAILURE ACUTE 0% 0.6%
PALPITATIONS 0.6% 0%
TYPE 2 DIABETES MELLITUS 0% 0.6%
PSORIASIS 0% 0.6%
MYOCARDIAL INFARCTION 0% 0.6%
CEREBROVASCULAR ACCIDENT 0% 0.6%
INJURY 0.5% 0.5%
HAEMOGLOBIN DECREASED 0.5% 0.5%
DYSPHAGIA 0.5% 0.5%
PULMONARY EMBOLISM 0.5% 0.5%
INJECTION SITE PAIN 0.4% 0.5%
ABDOMINAL DISCOMFORT 0.5% 0.4%
SEPSIS 0.4% 0.5%
CELLULITIS 0% 0.5%
SUICIDE ATTEMPT 0% 0.5%
GASTROOESOPHAGEAL REFLUX DISEASE 0% 0.5%
INTENTIONAL OVERDOSE 0% 0.5%
BLOOD GLUCOSE INCREASED 0% 0.5%
BALANCE DISORDER 0% 0.5%
MEMORY IMPAIRMENT 0% 0.5%
PANCREATITIS 0% 0.5%
CARDIAC FAILURE CONGESTIVE 0% 0.5%
NASOPHARYNGITIS 0.5% 0%
PERIPHERAL SWELLING 0.5% 0%
MIGRAINE 0.5% 0%
THROAT TIGHTNESS 0.5% 0%
SWELLING FACE 0.5% 0%
DISEASE PROGRESSION 0.5% 0%
ANAPHYLACTIC REACTION 0.5% 0%
PRODUCT QUALITY ISSUE 0.5% 0%
ALOPECIA 0.5% 0%
OXYGEN SATURATION DECREASED 0.5% 0%
PLATELET COUNT DECREASED 0.4% 0%
THROMBOCYTOPENIA 0.4% 0%
SWELLING 0.4% 0%
SYNCOPE 0% 0.4%
INCORRECT DOSE ADMINISTERED 0% 0.4%
BRONCHITIS 0% 0.4%
GASTROINTESTINAL HAEMORRHAGE 0% 0.4%
DEEP VEIN THROMBOSIS 0.4% 0%
FEELING HOT 0.4% 0%
MUSCULAR WEAKNESS 0.4% 0%
OROPHARYNGEAL PAIN 0.4% 0%
WHEEZING 0.4% 0%
CONTUSION 0.4% 0%
NEUROPATHY PERIPHERAL 0.4% 0%
BLOOD PRESSURE DECREASED 0.4% 0%
WHITE BLOOD CELL COUNT DECREASED 0.4% 0%

New treatments are found every day. View current Benadryl research studies and Hydroxyzine clinical trials


Top 5 Benadryl Reported Side Effects

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Top 5 Hydroxyzine Reported Side Effects

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Patient Forum

Recent Comments and Reports

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

Can you take this medicine with glaucoma

Convulsions and seizures sometimes for up to a week and a half at a time

Does taking too much benadryl cause a person to fall asleep and not wake up?

Hi i like know about heavy dosage of benadryl side effects can anybody please give feedback waiting for positive response regards vijay

Hydroxozine hcl is working great to calm my nerves. But, I'm trying to decide if the joint pain is worth it. I believe I have a tic disorder, not anxiety. I've only had one dr visit and they are treating anxiety. But if I don't take roughly, 1200mg o

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'v

I take up to 50 Benadryl a day. How many should I take? I like how it makes me feel.

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.

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?

My son is allergic to children's Benadryl. It causes him to develop eye infections (conjunctivitus).

**The reason i reccomend 300-350mg is because i did that ammount 2 times with benadryl and it wasnt the best but i dont think it was horrible, and the second time i did 325mg and mixed it with weed and a few mood helper pills i found at my sisters ho

11.0 years of age, on May 11, 2011, received the varicella injection.. Patient has a pink-ish circle around injection sight. Looking at about 2in x 3in circle... Is red and puffy. Returned to the doctor on May 13, 2011. Patient received Benadryl and

A few days ago i took 450 mg of diphenhydramine in sleeping pills, i know it is extremely stupid and i regret it 100%, first off when i took it i was very stoned and i thought they were benadryl because all i read was the diphenhydramine, about a hal

Age 11, tdap vaccine at 4:00pm. Started suffering from aches and pains and low grade fever by 7:00pm and a swollen eye. Skin looked white and eye was watery and uncomfortable. Treated with ice and benadryl.

Broke out in hives and itching for hours even benadryl wouldn't help

Day 9 post op of being swabbed with chloraprep, rash, swelling of neck, face and lips, 1 day of benadryl and then 6 days of prednizone. Day 1 today after prednisone and rash is popping back out justa s red and angry as day 1 but no swelling

Does taking too much benadryl cause a person to fall asleep and not wake up?

Drawsy, Tiredness, Fatigue. It is bad as Benadryl (cold medisine you take before go to bed)

Hi i like know about heavy dosage of benadryl side effects can anybody please give feedback waiting for positive response regards vijay

I had surgery 3-9-10 and swabbed down with chloraprep on neck area and jaw. By Thursday had rash on this area and upper chest and swelling in face. Treated w/ benadryl every 4 hrs on Thurs per surgeon's request.&nbsp



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