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Shaking (11)
Dry Mouth (10)
Tingly (9)
Dizziness (7)
Dizzy,dry Mouth,shaking, Tingly , Warm (5)
Tired (5)
Warm (5)
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Vistaril Side Effects and Adverse Effects reported to US Food and Drug Administration (FDA)

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Showing 1-25 of 89 

Cardiac Failure Congestive (7901033-0)
on Oct 31, 2011 Female from UNITED STATES , weighting 189.6 lb, was treated with Vistaril. Directly after, patient experienced the unwanted or unexpected Vistaril side effects: cardiac failure congestive. Vistaril dosage: Unk. Patient was hospitalized.

Myocardial Ischaemia, Cardiac Failure Congestive, Respiratory Failure (7828005-9)
Patient was taking Vistaril. Patient felt the following Vistaril side effects: myocardial ischaemia, cardiac failure congestive, respiratory failure on Oct 12, 2011 from UNITED STATES Additional patient health information: Female , 62 years of age, weighting 295.6 lb, . Vistaril dosage: N/A.
Multiple prescriptions taken:
  • Celebrex
  • Altace
  • Avandia (4mg Per Day)
  • Prevacid
  • Levoxyl
Patient was hospitalized.

Anger, Mania, Mood Swings (7772752-4)
Adverse event was reported on Nov 08, 2010 by a Female taking Vistaril (Dosage: One In Am Two In Pm) was diagnosed with
  • anxiety
  • migraine
  • convulsion
  • bipolar disorder
  • mood swings
and. Location: UNITED STATES , 36 years of age, weighting 328.0 lb, After Vistaril was administered, patient encountered several Vistaril side effects: anger, mania, mood swings.
Multiple concurrent drugs taken:
  • Ibuprofen
  • Depakote Er
  • Seroquel Xr
  • Depakote Er
  • Seroquel Xr
  • Seroquel Xr
  • Zoloft
  • Ibuprofen


Neuroleptic Malignant Syndrome, Pancreatitis (7772325-3)
on Apr 13, 2011 Female from UNITED STATES , weighting 164.9 lb, was treated with Vistaril. Directly after, patient experienced the unwanted or unexpected Vistaril side effects: neuroleptic malignant syndrome, pancreatitis. Vistaril dosage: Prn.
Associated medications used:
  • Lortab
  • Phenergan Hcl
  • M.v.i.
  • Macrodantin
  • Remeron
  • Seroquel (25-50 Mg)
  • Lexapro
  • Seroquel (25-300 Mg)



Headache, Emotional Disorder, Type 2 Diabetes Mellitus, Back Pain, Migraine (7771406-8)
on Jul 18, 2011 Female from UNITED STATES , weighting 274.9 lb, was treated with Vistaril. Patient felt the following Vistaril side effects: headache, emotional disorder, type 2 diabetes mellitus, back pain, migraine. Vistaril dosage: N/A.
Multiple prescriptions taken:
  • Protonix
  • Imitrex
  • Prozac
  • Geodon
  • Naltrixone Hcl
  • Abilify
  • Seroquel (100-400 Mg)
  • Topamax


Thrombophlebitis, Thrombosis, Deep Vein Thrombosis, Bleeding Varicose Vein (7757268-3)
Patient was taking Vistaril. After Vistaril was administered, patient encountered several Vistaril side effects: thrombophlebitis, thrombosis, deep vein thrombosis, bleeding varicose vein on Sep 06, 2011 from UNITED STATES Additional patient health information: Female , 38 years of age, was diagnosed with
  • anxiety
and. Vistaril dosage: 25 Mg, Unk.
Multiple concurrent drugs taken:
  • Depo-provera (150 Mg, Unk)
  • Ativan (1 Mg, Unk)
  • Celebrex (200 Mg, Bid)
  • Ambien (Unk Unk, Hs, 5-10 Mg)
  • Vicodin
  • Celexa
  • Yasmin (Unk)
  • Phentermine


Dyspnoea Exertional, Confusional State, Night Sweats, Blood Culture Positive, Dehydration, Blood Creatinine Increased, Malaise, Asthenia, Feeling Abnormal (7731785-4)
Adverse event was reported on Aug 31, 2011 by a Female taking Vistaril (Dosage: 25 Mg, Qid) . Location: UNITED STATES , weighting 213.8 lb, Directly after, patient experienced the unwanted or unexpected Vistaril side effects: dyspnoea exertional, confusional state, night sweats, blood culture positive, dehydration, blood creatinine increased, malaise, asthenia, feeling abnormal.
Associated medications used:
  • Methadone Hcl (5 Mg, Bid)
  • Omeprazole (20 Mg, Qd)
  • Oxycodone Hcl (5 Mg, Unk)
  • Sorafenib (200 Mg, Bid)
  • Trental (400 Mg, Tid)
  • Lortab (1 Df, Prn)
  • Lovenox (100 Mg, Q12h)
  • Afinitor (5 Mg, Qd)
Patient was hospitalized.

Hyperhidrosis, Abdominal Pain, Pruritus, Visual Impairment, Nasal Ulcer, Convulsion, Heart Rate Increased, Vision Blurred, Hypertension (7731128-6)
on Sep 06, 2011 Female from UNITED STATES , 44 years of age, weighting 175.0 lb, was diagnosed with
  • anxiety
and was treated with Vistaril. Patient felt the following Vistaril side effects: hyperhidrosis, abdominal pain, pruritus, visual impairment, nasal ulcer, convulsion, heart rate increased, vision blurred, hypertension. Vistaril dosage: Tid. Patient was hospitalized.

Suicide Attempt, Overdose, Injury (7712783-3)
on Aug 18, 2011 Female from UNITED STATES , 42 years of age, weighting 174.4 lb, was diagnosed with
  • depression
  • pain
and was treated with Vistaril. After Vistaril was administered, patient encountered several Vistaril side effects: suicide attempt, overdose, injury. Vistaril dosage: N/A.
Multiple concurrent drugs taken:
  • Tramadol Hcl
  • Lamictal
  • Trazodone Hydrochloride
  • Zoloft
  • Trileptal
  • Zyprexa
Patient was hospitalized.

Rash, Gait Disturbance, Blister, Urticaria, Oedema Peripheral (7652940-8)
Patient was taking Vistaril. Directly after, patient experienced the unwanted or unexpected Vistaril side effects: rash, gait disturbance, blister, urticaria, oedema peripheral on Aug 02, 2011 from UNITED STATES Additional patient health information: Male , 47 years of age, weighting 240.0 lb, . Vistaril dosage: N/A.
Associated medications used:
  • Azithromycin (1 Tablet Daily For 5 - Days With Food)
  • Azithromycin (1 Tablet Daily For 5 - Days With Food)
  • Prednisone


Acute Respiratory Failure, Muscle Spasms, Migraine, Cerebrovascular Accident, Hypercoagulation, Hypoaesthesia, Disorientation, Back Pain (7641928-9)
Adverse event was reported on Jul 18, 2011 by a Female taking Vistaril (Dosage: N/A) was diagnosed with
  • panic attack
  • contraception
and. Location: UNITED STATES , 25 years of age, weighting 140.0 lb, Patient felt the following Vistaril side effects: acute respiratory failure, muscle spasms, migraine, cerebrovascular accident, hypercoagulation, hypoaesthesia, disorientation, back pain.
Multiple prescriptions taken:
  • Nuvaring
  • Zoloft


Tumour Excision, Intervertebral Disc Protrusion, Rheumatoid Arthritis, Hiatus Hernia, Pancreatic Carcinoma, Eating Disorder, Oesophageal Perforation, Surgery, Abdominal Discomfort (7636434-1)
on Jul 14, 2011 Female from UNITED STATES , 50 years of age, weighting 179.9 lb, was treated with Vistaril. After Vistaril was administered, patient encountered several Vistaril side effects: tumour excision, intervertebral disc protrusion, rheumatoid arthritis, hiatus hernia, pancreatic carcinoma, eating disorder, oesophageal perforation, surgery, abdominal discomfort. Vistaril dosage: N/A.
Multiple concurrent drugs taken:
  • Valium
  • Morphine
  • Soma
  • Seroquel
  • Nulev
  • Vitamin B-12
  • Nexium
  • Seroquel


Deep Vein Thrombosis (7626820-8)
on Jul 12, 2011 Female from UNITED STATES , 22 years of age, weighting 210.0 lb, was treated with Vistaril. Directly after, patient experienced the unwanted or unexpected Vistaril side effects: deep vein thrombosis. Vistaril dosage: N/A.
Associated medications used:
  • Warfarin Sodium
  • Tramadol Hcl (50 Mg, Unk)
  • Hydrocodone Bitartrate And Acetaminophen
  • Prenatal Plus Iron
  • Motrin
  • Hydromorphone Hcl
  • Yaz (As Used Dose: Unk)
  • Levothyroxine Sodium (150 Unk, Unk)
Patient was hospitalized.

Panic Attack, Anxiety, Nightmare, Somnolence (7581696-2)
Patient was taking Vistaril. Patient felt the following Vistaril side effects: panic attack, anxiety, nightmare, somnolence on Jun 27, 2011 from UNITED STATES Additional patient health information: Female , weighting 176.0 lb, was diagnosed with
  • panic attack
  • hyperthyroidism
  • bipolar i disorder
  • depression
and. Vistaril dosage: 25 Mg, As Needed.
Multiple prescriptions taken:
  • Synthroid (125 Ug, Daily)
  • Effexor Xr (300 Mg, Daily)
  • Pristiq
  • Effexor Xr (150 Mg, Daily)
  • Pristiq (50 Mg, Daily)


Toxicity To Various Agents, Hyperammonaemia (7545142-7)
Adverse event was reported on Jun 10, 2011 by a Male taking Vistaril (Dosage: N/A) . Location: UNITED STATES , weighting 175.0 lb, After Vistaril was administered, patient encountered several Vistaril side effects: toxicity to various agents, hyperammonaemia.
Multiple concurrent drugs taken:
  • Melatonin
  • Prozac
  • Depakote Er (1500 Mg Daily)
  • Trazodone Hcl
Patient was hospitalized.

Herpes Zoster, Incorrect Dose Administered, Therapeutic Response Delayed (7522044-3)
on May 23, 2011 Female from UNITED STATES , weighting 119.0 lb, was treated with Vistaril. Directly after, patient experienced the unwanted or unexpected Vistaril side effects: herpes zoster, incorrect dose administered, therapeutic response delayed. Vistaril dosage: N/A.
Associated medications used:
  • Nexium
  • Elavil
  • Premarin
  • Prosed Ds
  • Elmiron


Confusional State, Dizziness, Feeling Abnormal, Dysarthria, Hallucination, Mental Impairment, Memory Impairment, Dysstasia, Visual Impairment (7481197-6)
on May 12, 2011 Female from UNITED STATES , weighting 111.0 lb, was diagnosed with
  • anxiety
  • muscle spasms
and was treated with Vistaril. Patient felt the following Vistaril side effects: confusional state, dizziness, feeling abnormal, dysarthria, hallucination, mental impairment, memory impairment, dysstasia, visual impairment. Vistaril dosage: 50mg Every 6hrs 4-5 - 4-19.
Multiple prescriptions taken:
  • Baclofen (20mg Every 6hrs 4-4 - Contion)


Product Quality Issue, Schizophrenia (7431797-4)
Patient was taking Vistaril. After Vistaril was administered, patient encountered several Vistaril side effects: product quality issue, schizophrenia on Feb 11, 2011 from UNITED STATES Additional patient health information: Female , 26 years of age, weighting 180.0 lb, . Vistaril dosage: As Needed.
Multiple concurrent drugs taken:
  • Invega Sustenna
  • Risperidone
  • Neurontin
  • Cogentin (As Needed)


Completed Suicide (7417266-6)
Adverse event was reported on Apr 13, 2011 by a Male taking Vistaril (Dosage: N/A) . Location: UNITED STATES , 29 years of age, Directly after, patient experienced the unwanted or unexpected Vistaril side effects: completed suicide.
Associated medications used:
  • Zyprexa
  • Fanapt
  • Provigil
  • Seroquel
  • Seroquel Xr
  • Invega Sustenna


Arthralgia, Fall, Limb Discomfort (7397315-4)
on Mar 30, 2011 Female from UNITED STATES , weighting 110.2 lb, was diagnosed with
  • back pain
and was treated with Vistaril. Patient felt the following Vistaril side effects: arthralgia, fall, limb discomfort. Vistaril dosage: Unk.
Multiple prescriptions taken:
  • Norflex (Unk)
  • Norflex


Hypersensitivity, Swelling Face, Arrhythmia, Rash, Oedema Peripheral (7386872-X)
on Mar 28, 2011 Female from UNITED STATES , 55 years of age, was treated with Vistaril. After Vistaril was administered, patient encountered several Vistaril side effects: hypersensitivity, swelling face, arrhythmia, rash, oedema peripheral. Vistaril dosage: N/A.

Intracranial Venous Sinus Thrombosis, Benign Intracranial Hypertension, Migraine (7381643-2)
Patient was taking Vistaril Intramuscular Solution. Directly after, patient experienced the unwanted or unexpected Vistaril side effects: intracranial venous sinus thrombosis, benign intracranial hypertension, migraine on Oct 07, 2010 from UNITED STATES Additional patient health information: Female , weighting 147.3 lb, . Vistaril Intramuscular Solution dosage: N/A.
Associated medications used:
  • Nabumetone
  • Ibuprofen
  • Cefadroxil (Unk)
  • Phenergan
  • Relafen (Unk)
  • Yaz
  • Relpax
  • Oxycodone (Unk)
Patient was hospitalized.

Movement Disorder, Parosmia, Respiratory Rate Decreased, Fear, Skin Discolouration (7365837-8)
Adverse event was reported on Mar 16, 2011 by a Male taking Vistaril (Dosage: 1,or 2 At Bedtime) was diagnosed with
  • multiple allergies
and. Location: UNITED STATES , 54 years of age, weighting 210.0 lb, Patient felt the following Vistaril side effects: movement disorder, parosmia, respiratory rate decreased, fear, skin discolouration.

Dyspnoea, Insomnia (7344643-4)
on Mar 07, 2011 Male from UNITED STATES , 54 years of age, weighting 220.0 lb, was treated with Vistaril. After Vistaril was administered, patient encountered several Vistaril side effects: dyspnoea, insomnia. Vistaril dosage: N/A.
Multiple concurrent drugs taken:
  • Hydroxyzine


Musculoskeletal Discomfort, Limb Discomfort (7337205-6)
on Mar 04, 2011 Female from UNITED STATES , weighting 110.2 lb, was diagnosed with
  • back pain
  • neck pain
and was treated with Vistaril. Directly after, patient experienced the unwanted or unexpected Vistaril side effects: musculoskeletal discomfort, limb discomfort. Vistaril dosage: Unk.
Associated medications used:
  • Norflex
  • Norflex (Unk)


Showing 1-25 of 89 

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It is very important to keep track of all side effects and discuss them with your doctor. If you think you may have a medical emergency, call your doctor or 911 immediately.

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Most drugs have a large list of nonsevere or mild adverse effects which do not rule out continued usage. These effects depend on individual sensitivity, and can include nausea, dizziness, diarrhea, malaise, vomiting, headache, dermatitis, dry mouth, etc. Check commonly reported side effects . These can be considered a form of pseudo-allergic reaction, as not all users experience these effects; many users experience none at all.

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

Vistaril Information

Alternative VISTARIL Names:HYDROXYZI

Active Ingredient: HYDROXYZI

Vistaril Dosage, Warnings, Usage.

Side Effects reported to FDA: 89. View Vistaril Adverse Reports

Vistaril safety alerts: No

Reported deaths: 8

Reported hospitalizations: 21

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