Benadryl Syncope Side Effect Reports


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

This information will help you understand how side effects, such as Syncope, 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.


Syncope, Thermal Burn

This Syncope side effect was reported by a consumer or non-health professional from CA. A 27-year-old female patient (weight:NA) experienced the following symptoms/conditions: hypersensitivity,transient ischaemic attack,vitamin supplementation,blood pressure. The patient was prescribed Benadryl Rs Allergy 25 Mg (dosage: Half Tablet As Needed Every 12 To 24 Hours), which was started on NS. Concurrently used drugs:
  • Aspirin
  • Vitamin D3
  • Indapamide
  • Apo-ramipril
When starting to take Benadryl Rs Allergy 25 Mg the consumer reported the following symptoms:
  • Syncope
  • Thermal Burn
These side effects may potentially be related to Benadryl Rs Allergy 25 Mg.
Syncope, Blood Pressure Decreased

This Syncope Benadryl side effect was reported by a health professional from UNITED STATES on Mar 07, 2012. A male , 67 years of age, weighting 233.9 lb, was treated with Benadryl. The patient presented the following health conditions:
  • Syncope
  • Blood Pressure Decreased
. Benadryl dosage: NA. Additional drugs used at the same time:
  • Tylenol /00020001/ (paracetamol)
  • Provenge (250 Ml, Single, Intravenous)
Loss Of Consciousness, Syncope, Transient Ischaemic Attack, Overdose, Cerebral Infarction

This is a Benadryl side effect report of a patient (weight:NA) from MEXICO, suffering from the following symptoms/conditions: NA, who was treated with Benadryl (dosage:NA, start time: Dec 03, 2011), combined with:
  • Clorotrimeton
, and developed a serious reaction and a Syncope side effect. The patient presented with:
  • Loss Of Consciousness
  • Syncope
  • Transient Ischaemic Attack
  • Overdose
  • Cerebral Infarction
which developed after the beginning of treatment. This side effect report can indicate a possible existence of increased vulnerability to Benadryl treatment in patients suffering from NA, resulting in Syncope.
Syncope, Wheezing, Vomiting, Infusion Related Reaction, Hyperhidrosis, Nausea

A 41-year-old patient (weight: NA) from CANADA with the following symptoms: NA started Benadryl treatment (dosage: NA) on Dec 19, 2011. Soon after starting Benadryl treatment, the consumer experienced several side effects, including:
  • Syncope
  • Wheezing
  • Vomiting
  • Infusion Related Reaction
  • Hyperhidrosis
  • Nausea
. Concurrently used drugs:
  • Remicade
  • Remicade
  • Acetaminophen
The patient was hospitalized. This finding indicates that some patients can be more vulnerable to developing Benadryl side effects, such as Syncope.
Syncope, Loss Of Consciousness, Overdose, Cerebral Infarction

A patient from MEXICO was prescribed and started Benadryl on Dec 20, 2011. Patient felt the following Benadryl side effects: syncope, loss of consciousness, overdose, cerebral infarction Additional patient health information: male , weighting 176.4 lb, The consumer reported the following symptoms: . Benadryl dosage: NA. Concurrently used drugs:
  • Clorotrimeton
Loss Of Consciousness, Syncope, Overdose

This report suggests a potential Benadryl Syncope side effect(s) that can have serious consequences. A patient from MEXICO (weight:NA) was diagnosed with the following health condition(s): NA and used Benadryl (dosage: NA) starting Dec 03, 2011. Soon after starting Benadryl the patient began experiencing various side effects, including:
  • Loss Of Consciousness
  • Syncope
  • Overdose
Drugs used concurrently:
  • Clorotrimeton
Although Benadryl demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Syncope, may still occur.
Hypoaesthesia, Off Label Use, Syncope

An adverse event was reported by a physician on Jun 27, 2011 by a Female taking Benadryl (dosage: Daily Dose Text: Three Milliters 3-5 Syringes) was diagnosed with and. Location: UNITED STATES , weighting 160.1 lb, patient began experiencing various side effects, including: Directly after treatment started, patient experienced the unwanted or unexpected Benadryl side effects: hypoaesthesia, off label use, syncope. Additional medications/treatments:
Syncope, Vertigo, Epistaxis, Abnormal Dreams, Head Injury, Lip Haemorrhage

This Syncope problem was reported by a consumer or non-health professional from UNITED STATES. A 31-year-old female patient (weight: NA) was diagnosed with the following medical condition(s): hypersensitivity.On NS a consumer started treatment with Benadryl (dosage: NA). The following drugs/medications were being taken at the same time: NA. When commencing Benadryl, the patient experienced the following unwanted symptoms /side effects:
  • Syncope
  • Vertigo
  • Epistaxis
  • Abnormal Dreams
  • Head Injury
  • Lip Haemorrhage
Although all drugs are carefully tested before they are licensed for use, they carry potential side effect risks. Some side effects, such as Syncope, may become evident only after a product is in use by the general population.
Parvovirus Infection, Thrombosis, Depression, Dyspnoea, Urticaria, Rash, Myalgia, Nausea, Syncope

This is a Benadryl side effect report of a 28-year-old female patient (weight: NA) from UNITED STATES. The patient developed the following symptoms/conditions: NA and was treated with Benadryl (dosage: NA) starting Jan 01, 2004. Concurrently used drugs:
  • Zoloft
  • Darvocet
  • Alprazolam
  • Solu-medrol
  • Yaz
  • Ocella
  • Spironolactone (Unk)
  • Allegra
Soon after that, the consumer experienced the following of symptoms:
  • Parvovirus Infection
  • Thrombosis
  • Depression
  • Dyspnoea
  • Urticaria
  • Rash
  • Myalgia
  • Nausea
  • Syncope
The patient was hospitalized. This opens a possibility that Benadryl could cause Syncope and that some female patients may be more susceptible.
Fall, Syncope, Dizziness

This Syncope side effect was reported by a consumer or non-health professional from UNITED STATES on Dec 21, 2010. A female patient from UNITED STATES , 85 years of age, weighting 136.9 lb, was diagnosed with and was treated with Benadryl. Directly after treatment started, patient experienced the unwanted or unexpected Benadryl side effects: fall, syncope, dizziness. Benadryl dosage: Daily.
Associated medications used:
  • Amlodipine Besilate (10 Mg)
  • Carvedilol (6.25 Mg)
These side effects may potentially be related to Benadryl.
Dyspnoea, Dizziness, Urinary Tract Infection, Weight Fluctuation, Convulsion, Device Related Infection, Syncope, Tremor

This Syncope side effect was reported by a consumer or non-health professional from UNITED STATES. A 34-year-old female patient (weight:NA) experienced the following symptoms/conditions: NA. The patient was prescribed Benadryl (dosage: NA), which was started on Aug 24, 2010. Concurrently used drugs:
  • Vicodin
  • Rebif
  • Coq10 (ubidecarenone)
  • Vesicare
  • Fish Oil (fish Oil)
  • Lyrica
  • Ventolin Hfa (salbutamol Sulfate)
  • Ampyra (10 Mg, Q 12 Hrs, Oral)
When starting to take Benadryl the consumer reported the following symptoms:
  • Dyspnoea
  • Dizziness
  • Urinary Tract Infection
  • Weight Fluctuation
  • Convulsion
  • Device Related Infection
  • Syncope
  • Tremor
These side effects may potentially be related to Benadryl.
Off Label Use, Syncope, Hypoaesthesia

This Syncope Benadryl side effect was reported by a consumer or non-health professional from UNITED STATES on Feb 14, 2011. A Female , 38 years of age, weighting 160.1 lb, was diagnosed with and was treated with Benadryl. The patient presented the following health conditions:
  • Off Label Use
  • Syncope
  • Hypoaesthesia
. Benadryl dosage: Text:three Milliters 3-5 Syringes. Additional drugs used at the same time:
  • Sitagliptin (Text:100mg Once Daily)
Syncope

This is a Benadryl side effect report of a 85-year-old female patient (weight:NA) from UNITED STATES, suffering from the following symptoms/conditions: sleep disorder,blood pressure, who was treated with Benadryl (dosage:One Tablet Per Day, start time: Dec 01, 2009), combined with:
  • Carvedilol (6.25 Mg, 1x/day)
  • Acetylsalicylic Acid (81 Mg, 1x/day)
  • Amlodipine Besylate (5 Mg, 2x/day)
  • Micardis (80 Mg, 1x/day)
, and developed a serious reaction and a Syncope side effect. The patient presented with:
  • Syncope
which developed after the beginning of treatment. This side effect report can indicate a possible existence of increased vulnerability to Benadryl treatment in female patients suffering from sleep disorder,blood pressure, resulting in Syncope.
Off Label Use, Syncope

A 85-year-old female patient (weight: NA) from UNITED STATES with the following symptoms: sleep disorder,blood pressure started Benadryl treatment (dosage: Text:one Tablet Per Day) on Dec 01, 2009. Soon after starting Benadryl treatment, the consumer experienced several side effects, including:
  • Off Label Use
  • Syncope
. Concurrently used drugs:
  • Amlodipine Besylate (Text:5mg One Tablet Twice A Day)
  • Carvedilol (Text:6.25mg Once Daily)
  • Micardis (Text:80mg Once Daily)
  • Acetylsalicylic Acid (Text:81mg Once Daily)
This finding indicates that some patients can be more vulnerable to developing Benadryl side effects, such as Syncope.
Off Label Use, Syncope

A patient from CANADA was prescribed and started Benadryl Allergy Chewable Tablet on Nov 24, 2010. After Benadryl was administered, patient encountered several Benadryl side effects: off label use, syncope Additional patient health information: male , child 12 years of age, weighting 80.03 lb, The consumer reported the following symptoms: was diagnosed with and. Benadryl Allergy Chewable Tablet dosage: Text:twice. Concurrently used drugs: NA.
Chills, Clonus, Convulsion, Dizziness, Hyperhidrosis, Loss Of Consciousness, Syncope

This report suggests a potential Benadryl Syncope side effect(s) that can have serious consequences. A 48-year-old female patient from UNITED STATES (weight:NA) was diagnosed with the following health condition(s): NA and used Benadryl (dosage: 25mg X 1 Iv) starting NS. Soon after starting Benadryl the patient began experiencing various side effects, including:
  • Chills
  • Clonus
  • Convulsion
  • Dizziness
  • Hyperhidrosis
  • Loss Of Consciousness
  • Syncope
Drugs used concurrently:NA. The patient was hospitalized. Although Benadryl demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Syncope, may still occur.
Dizziness, Feeling Of Body Temperature Change, Nausea, Off Label Use, Syncope, Vertigo

An adverse event was reported by a consumer or non-health professional on Apr 02, 2010 by a Female taking Benadryl (dosage: Text:two Every Four To Six Hours) was diagnosed with and. Location: UNITED STATES , 28 years of age, weighting 121.3 lb, patient began experiencing various side effects, including: Patient felt the following Benadryl side effects: dizziness, feeling of body temperature change, nausea, off label use, syncope, vertigo. Additional medications/treatments:
Overdose, Syncope

This Syncope problem was reported by a consumer or non-health professional from UNITED STATES. A 20-year-old female patient (weight: NA) was diagnosed with the following medical condition(s): arthropod bite.On NS a consumer started treatment with Benadryl (dosage: NA). The following drugs/medications were being taken at the same time: NA. When commencing Benadryl, the patient experienced the following unwanted symptoms /side effects:
  • Overdose
  • Syncope
Although all drugs are carefully tested before they are licensed for use, they carry potential side effect risks. Some side effects, such as Syncope, may become evident only after a product is in use by the general population.
Nasal Congestion, Rhinorrhoea, Syncope

This is a Benadryl side effect report of a 44-year-old female patient (weight: NA) from UNITED STATES. The patient developed the following symptoms/conditions: rhinorrhoea and was treated with Benadryl (dosage: 1 Tablet One Time, Oral) starting Feb 26, 2008. Concurrently used drugs: NA. Soon after that, the consumer experienced the following of symptoms:
  • Nasal Congestion
  • Rhinorrhoea
  • Syncope
This opens a possibility that Benadryl could cause Syncope and that some female patients may be more susceptible.
Syncope

This Syncope side effect was reported by a consumer or non-health professional from UNITED STATES on Oct 21, 2006. A female patient from UNITED STATES , 28 years of age, was diagnosed with and was treated with Benadryl. Patient felt the following Benadryl side effects: syncope. Benadryl dosage: 2 Tabelts Once, Oral. These side effects may potentially be related to Benadryl.

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

Benadryl Syncope Causes and Reviews


Fainting is a temporary loss of consciousness. If you're about to faint, you'll feel dizzy, lightheaded, or nauseous. Your field of vision may "white out" or "black out." Your skin may be cold and clammy. You lose muscle control at the same time, and may fall down.

Fainting usually happens when your blood pressure drops suddenly, causing a decrease in blood flow to your brain. It is more common in older people. Some causes of fainting include

  • Heat or dehydration
  • Emotional distress
  • Standing up too quickly
  • Certain medicines
  • Drop in blood sugar
  • Heart problems

When someone faints, make sure that the airway is clear and check for breathing. The person should stay lying down for 10-15 minutes. Most people recover completely. Fainting is usually nothing to worry about, but it can sometimes be a sign of a serious problem. If you faint, it's important to see your health care provider and find out why it happened.


Benadryl Syncope 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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Dyspnoea (162)
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Loss Of Consciousness (113)
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Convulsion (42)
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Pain In Extremity (30)
Cough (30)
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Incorrect Dose Administered (28)
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Eye Swelling (27)
Flushing (26)
Fall (26)
Confusional State (25)
Lip Swelling (24)
Syncope (24)

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