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Missed Period (10)
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Itching (4)
More Dizzy Than Before Taking It (4)
Severe Headache (4)
Ii Had My Period Late (3)
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Betahistine Side Effects and Adverse Effects reported to US Food and Drug Administration (FDA)

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Showing 1-25 of 28 

Nasal Cavity Packing, Epistaxis (8463007-3)
on Jun 19, 2012 Female from UNITED KINGDOM , 86 years of age, weighting 159.6 lb, was diagnosed with
  • dizziness
  • ulcer
  • rhinitis
  • heart valve replacement
and was treated with Betahistine. Directly after, patient experienced the unwanted or unexpected Betahistine side effects: nasal cavity packing, epistaxis. Betahistine dosage: 48mg Per Day.
Associated medications used:
  • Ranitidine (300mg Per Day)
  • Beconase (4iuax Per Day)
  • Clopidogrel (75mg Per Day)
Patient was hospitalized.

Irritability, Dizziness, Disorientation, Speech Disorder, Vertigo, Confusional State (8418426-8)
Patient was taking Betahistine Hydrochloride. Patient felt the following Betahistine side effects: irritability, dizziness, disorientation, speech disorder, vertigo, confusional state on May 31, 2012 from PORTUGAL Additional patient health information: Male , 50 years of age, weighting 196.2 lb, was diagnosed with
  • balance disorder
  • depression
and. Betahistine Hydrochloride dosage: 16 Mg, 2x/day.
Multiple prescriptions taken:
  • Bupropion Hydrochloride (150 Mg, 1x/day)
  • Lyrica (100 Mg, 3x/day)


Convulsion, Drop Attacks (8402281-6)
Adverse event was reported on May 23, 2012 by a Male taking Betahistine (Dosage: N/A) . Location: UNITED KINGDOM , 67 years of age, weighting 165.8 lb, After Betahistine was administered, patient encountered several Betahistine side effects: convulsion, drop attacks.
Multiple concurrent drugs taken:
  • Atorvastatin Calcium
  • Calcichew D3
  • Lamotrigine
  • Fluticasone Propionate/salmeterol
  • Citalopram Hydrobromide
  • Acetaminophen
  • Omeprazole
  • Aspirin


Self-injurious Ideation, Violence-related Symptom, Thinking Abnormal (8399807-8)
on May 18, 2012 Female from UNITED KINGDOM , 47 years of age, weighting 165.3 lb, was treated with Betahistine. Directly after, patient experienced the unwanted or unexpected Betahistine side effects: self-injurious ideation, violence-related symptom, thinking abnormal. Betahistine dosage: N/A.
Associated medications used:
  • Gaviscon
  • Lansoprazole
  • Pregabalin
  • Cetirizine
  • Tramadol Hcl
  • Candesartan Cilexetil
  • Acetaminophen And Codeine Phosphate
  • Acetaminophen



Syncope, Vomiting, Loss Of Consciousness, Dizziness (8347432-7)
on Mar 23, 2012 Female from UNITED KINGDOM , weighting 136.7 lb, was treated with Betahistine. Patient felt the following Betahistine side effects: syncope, vomiting, loss of consciousness, dizziness. Betahistine dosage: Prior To 2006.
Multiple prescriptions taken:
  • Fybogel (Form: Sachet; Dose: 1 Satchet Daily)
  • Mabthera (Form: Vial; Batch No.: B6042 For 500 Mg Vial; Batch No.: B6007 For 100 Mg Vial)
  • Proclorperazina
  • Mabthera
  • Chlorambucil (Per Protocol: 10 Mg/m2/day P.o. Days 1-7, Permanently Discontinued.)
  • Mabthera (Permanently Discontinued.)
  • Aspirin
  • Omeprazole
Patient was hospitalized.

Cerebral Ischaemia (8247377-7)
Patient was taking Betahistine Hydrochloride. After Betahistine was administered, patient encountered several Betahistine side effects: cerebral ischaemia on Mar 20, 2012 from CHINA Additional patient health information: Female , 81 years of age, weighting 136.7 lb, was diagnosed with
  • prophylaxis
  • metastatic renal cell carcinoma
  • nutritional support
and. Betahistine Hydrochloride dosage: 8 Mg, 3x/day.
Multiple concurrent drugs taken:
  • Axitinib (3 Mg, 2x/day)
  • Vitamin E (268 Mg, 1x/day)
  • Ascorbic Acid (100 Mg, 1x/day)
  • Vitamin B6 (10 Mg, 1x/day)


Blood Bilirubin Increased, Alanine Aminotransferase Increased, Aspartate Aminotransferase Increased, Liver Function Test Abnormal, Renal Impairment (8244576-5)
Adverse event was reported on Mar 29, 2012 by a Female taking Betahistine Mesilate (Dosage: N/A) . Location: GERMANY , weighting 257.9 lb, Directly after, patient experienced the unwanted or unexpected Betahistine side effects: blood bilirubin increased, alanine aminotransferase increased, aspartate aminotransferase increased, liver function test abnormal, renal impairment.
Associated medications used:
  • Xarelto
  • Marcumar
  • Micardis
  • Lercanidipine
  • Heparin
Patient was hospitalized.

Malaise, Chest Pain, Dyspepsia, Abdominal Pain Upper, Dizziness, Alopecia, Sleep Disorder, Muscle Spasms, Vision Blurred (8193208-3)
on Feb 23, 2012 Female from NETHERLANDS , 50 years of age, weighting 149.9 lb, was treated with Betahistine. Patient felt the following Betahistine side effects: malaise, chest pain, dyspepsia, abdominal pain upper, dizziness, alopecia, sleep disorder, muscle spasms, vision blurred. Betahistine dosage: N/A.
Multiple prescriptions taken:
  • Alendronate Sodium (1 Tablet Per Dag)


Dyspnoea, Labyrinthitis, Oedema Peripheral (8156094-3)
on Feb 07, 2012 Female from BRAZIL , 51 years of age, was treated with Betahistine (betahistine) (betahistine). After Betahistine was administered, patient encountered several Betahistine side effects: dyspnoea, labyrinthitis, oedema peripheral. Betahistine (betahistine) (betahistine) dosage: N/A.
Multiple concurrent drugs taken:
  • Benicar Hct (20/12.5 Mg (1 In 1 D), Per Oral)
Patient was hospitalized.

Sinusitis, Feeling Abnormal, Gait Disturbance, Brain Hypoxia, Nervous System Disorder, Cerebrovascular Insufficiency (8123557-6)
Patient was taking Betahistine Dihydrochloride. Directly after, patient experienced the unwanted or unexpected Betahistine side effects: sinusitis, feeling abnormal, gait disturbance, brain hypoxia, nervous system disorder, cerebrovascular insufficiency on Feb 01, 2012 from BRAZIL Additional patient health information: Female , 46 years of age, was diagnosed with
  • cerebrovascular disorder
and. Betahistine Dihydrochloride dosage: 1 Df, Daily.
Associated medications used:
  • Trileptal (300 Mg, Bid)
  • Antidepressants (Unk Ukn, Unk)
  • Hydrochlorothiazide (1 Df, Daily)
  • Enalapril Maleate (1 Df, Daily)


Leukoencephalopathy (8069212-2)
Adverse event was reported on Jan 18, 2012 by a Female taking Betahistine (Dosage: N/A) . Location: BELGIUM , 77 years of age, Patient felt the following Betahistine side effects: leukoencephalopathy.
Multiple prescriptions taken:
  • Methotrexate
  • Acetaminophen
  • Orencia (Last Admin: 15nov11.)
  • Strumazol


Transitional Cell Carcinoma (8055094-1)
on Jan 04, 2012 Female from BELGIUM , weighting 116.8 lb, was diagnosed with
  • oesophagitis
and was treated with Betahistine. After Betahistine was administered, patient encountered several Betahistine side effects: transitional cell carcinoma. Betahistine dosage: N/A.
Multiple concurrent drugs taken:
  • Levothyroxine Sodium
  • Michol
  • Pantoprazole
  • Revlimid (20 Milligram)


Encephalitis, Leukoencephalopathy (8054165-3)
on Jan 05, 2012 Female from BELGIUM , 77 years of age, was treated with Betahistine. Directly after, patient experienced the unwanted or unexpected Betahistine side effects: encephalitis, leukoencephalopathy. Betahistine dosage: N/A.
Associated medications used:
  • Orencia (Last Admin: 15nov11.)
  • Methotrexate
  • Strumazol
  • Acetaminophen


Large Intestine Perforation, Hepatic Congestion, Infectious Peritonitis, Platelet Count Increased, Constipation, Pain, Neutrophil Count Increased, Large Intestinal Obstruction (8030246-5)
Patient was taking Betahistine. Patient felt the following Betahistine side effects: large intestine perforation, hepatic congestion, infectious peritonitis, platelet count increased, constipation, pain, neutrophil count increased, large intestinal obstruction on Jan 05, 2012 from UNITED KINGDOM Additional patient health information: Female , weighting 152.1 lb, . Betahistine dosage: 1 Ukn, Tid.
Multiple prescriptions taken:
  • Metoclopramide (10 Mg, Tid)
  • Hyoscine Hydrobromide (150 Mg, Daily)
  • Nizatidine (150 Mg, At Night)
  • Clozaril (300 Mg, Bid)
  • Acetaminophen And Codeine Phosphate (2 Ukn, Tid)


Uveitis (7993585-X)
Adverse event was reported on Dec 16, 2011 by a Male taking Betahistine Dihydrochloride (Dosage: 30 Ml, Unk) was diagnosed with
  • meniere's disease
  • hypertension
and. Location: AUSTRALIA , 77 years of age, weighting 218.5 lb, After Betahistine was administered, patient encountered several Betahistine side effects: uveitis.
Multiple concurrent drugs taken:
  • Ramipril (5 Mg, Unk)
  • Metoprolol Tartrate (100 Mg, Unk)
  • Denosumab (60 Mg, Q6mo)
  • Stemetil (5 Mg, Unk)
  • Lipitor (20 Mg, Unk)
  • Cefaclor
  • Aspirin (100 Mg, Unk)
  • Goserelin Acetate (10.8 Mg, Unk)
Patient was hospitalized.

Psoriasis (7935387-6)
on Nov 17, 2011 Male from FRANCE , 54 years of age, was treated with Betahistine. Directly after, patient experienced the unwanted or unexpected Betahistine side effects: psoriasis. Betahistine dosage: N/A.
Associated medications used:
  • Hyzaar
Patient was hospitalized.

Muscular Weakness, Malaise, Headache, Myalgia (7918827-8)
on Nov 04, 2011 Female from UNITED KINGDOM , 57 years of age, was treated with Betahistine. Patient felt the following Betahistine side effects: muscular weakness, malaise, headache, myalgia. Betahistine dosage: Unk.
Multiple prescriptions taken:
  • Sodium Docusate (Unk)
  • Prochlorperazine (Unk)
  • Acetaminophen (Unk)
  • Prednisolone (20 Mg, Unk)
  • Albuterol Sulfate Autohaler (Unk)
  • Warfarin Sodium (Unk)
  • Fluticasone Propionate/salmeterol (Unk)
  • Senna (Unk)
Patient was hospitalized.

Liver Function Test Abnormal, Cholestasis, Myositis (7699871-5)
Patient was taking Betahistine. After Betahistine was administered, patient encountered several Betahistine side effects: liver function test abnormal, cholestasis, myositis on Aug 08, 2011 from UNITED KINGDOM Additional patient health information: Female , 83 years of age, . Betahistine dosage: N/A.
Multiple concurrent drugs taken:
  • Nitroglycerin
  • Felodipine
  • Doxycycline
  • Doxycycline
  • Bumetanide
  • Clopidogrel
  • Fluoxetine
  • Isosorbide Mononitrate
Patient was hospitalized.

Decreased Appetite, Balance Disorder, Movement Disorder, Fall, Hyponatraemia, Hypokalaemia, Asthenia (7655465-9)
Adverse event was reported on Aug 02, 2011 by a Female taking Betahistine Dihydrochloride (Dosage: N/A) . Location: FRANCE , 85 years of age, Directly after, patient experienced the unwanted or unexpected Betahistine side effects: decreased appetite, balance disorder, movement disorder, fall, hyponatraemia, hypokalaemia, asthenia.
Associated medications used:
  • Previscan
  • Alendronic Acid
  • Nicardipine Hcl
  • Diacerein
  • Amiodarone Hcl
  • Forlax
  • Stresam
  • Indapamide
Patient was hospitalized.

Anaemia Megaloblastic, Vitamin B12 Deficiency (7650752-2)
on Jul 28, 2011 Female from PORTUGAL , 85 years of age, weighting 165.3 lb, was treated with Betahistine. Patient felt the following Betahistine side effects: anaemia megaloblastic, vitamin b12 deficiency. Betahistine dosage: Unk.
Multiple prescriptions taken:
  • Relmus (Unk)
  • Zurim (Unk)
  • Trausan (100 Mg, Unk)
  • Monoket (20 Mg, Unk)
  • Aspirin (Unk)
  • Tolvon (30 Mg, Unk)
  • Indapamide (Unk)
  • Ascorbic Acid/hesperidin Methyl Chalcone/ruscus Aculeatus (Unk)
Patient was hospitalized and became disabled.

Myositis, Liver Function Test Abnormal, Cholestasis (7639843-X)
on Jul 14, 2011 Female from UNITED KINGDOM , 83 years of age, was treated with Betahistine. After Betahistine was administered, patient encountered several Betahistine side effects: myositis, liver function test abnormal, cholestasis. Betahistine dosage: N/A.
Multiple concurrent drugs taken:
  • Omeprazole
  • Doxycycline
  • Fluoxetine
  • Isosorbide Mononitrate
  • Lactulose
  • Acetaminophen
  • Atorvastatin
  • Ramipril
Patient was hospitalized.

Cholestasis, Myositis, Blood Creatine Phosphokinase Increased, Liver Function Test Abnormal (7620885-5)
Patient was taking Betahistine Hydrochloride. Directly after, patient experienced the unwanted or unexpected Betahistine side effects: cholestasis, myositis, blood creatine phosphokinase increased, liver function test abnormal on Jul 14, 2011 from UNITED KINGDOM Additional patient health information: Female , 83 years of age, . Betahistine Hydrochloride dosage: N/A.
Associated medications used:
  • Bumetanide
  • Clopidogrel
  • Isosorbide Mononitrate
  • Omeprazole
  • Felodipine
  • Lactulose
  • Glyceryl Trinitrate
  • Doxycycline Hyclate (200 Mg, Single)
Patient was hospitalized.

Brain Herniation (7503325-6)
Adverse event was reported on May 20, 2011 by a Male taking Betahistine (Dosage: N/A) . Location: GERMANY , weighting 165.3 lb, Patient felt the following Betahistine side effects: brain herniation.
Multiple prescriptions taken:
  • Omeprazole
  • Amlodipine
  • Tasigna (400 Mg, Bid)
  • Prednisone
  • Enalapril Maleate
  • Hydrochlorothiazde Tab
  • Magnesium
Patient was hospitalized.

Stomatitis (7497761-4)
on May 12, 2011 Female from GERMANY , 67 years of age, weighting 176.4 lb, was diagnosed with
  • hypertension
  • osteoporosis
  • rheumatoid arthritis
and was treated with Betahistine. After Betahistine was administered, patient encountered several Betahistine side effects: stomatitis. Betahistine dosage: 24 Mg, Unk.
Multiple concurrent drugs taken:
  • Vitamin A (800 Iu, Unk)
  • Methotrexate (7.5 Mg, Unk)
  • Flunarizine (5 Mg, Unk)
  • Prednisolone (2.5 Mg, Unk)
  • Calcium Carbonate (1000 Mg, Unk)
  • Metoprolol Succinate (47.5 Mg, Unk)
  • Enbrel (50 Mg, Qwk)
  • Prednisolone (12.5 Mg, Unk)


Arthralgia, Syncope, Myalgia, Headache (7442729-7)
on Apr 14, 2011 Male from UNITED KINGDOM , 56 years of age, weighting 172.8 lb, was treated with Betahistine Dihydrochloride. Directly after, patient experienced the unwanted or unexpected Betahistine side effects: arthralgia, syncope, myalgia, headache. Betahistine Dihydrochloride dosage: 8 Mg, Tid.
Associated medications used:
  • Losec /00661201/ (20 Mg, Bid)
  • Albuterol Sulfate Autohaler (2 Df, Prn)
  • Nitrazepam (5 Mg, Bid)
  • Ramipril (10 Mg, Daily)
  • Pravastatin Sodium
  • Cialis (10 Mg, Unk)
  • Amoxicillin (500 Mg, Tid)
  • Spiriva (1 Df, Daily)


Showing 1-25 of 28 

Betahistine Health Episodes

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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.

Betahistine Information

More About Betahistine

Side Effects reported to FDA: 28. View Betahistine Adverse Reports

Betahistine safety alerts: No

Reported deaths: 2

Reported hospitalizations: 9

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