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Benzhexol Side Effects

Common Benzhexol Side Effects


The most commonly reported Benzhexol side effects (click to view or check a box to report):

Insomnia (1)
Hyperhidrosis (1)
Hallucinations, Mixed (1)
Intentional Overdose (1)
Memory Impairment (1)
Vision Blurred (1)
Psychiatric Symptom (1)
Cerebral Infarction (1)
Cardiac Arrest (1)
Somnolence (1)
Suicide Attempt (1)
Treatment Noncompliance (1)
Social Problem (1)
Schizophrenia (1)
Amnesia (1)
Restlessness (1)
Psychotic Disorder (1)


If you or someone in your family has experienced a serious side effect to a health product, you are encouraged to report the experience to your health care professional (e.g. physician, pharmacist). You could also complete a copy of the side effect reporting form or report your side effect to FDA.

Side effects reports are analyzed to discover potential health product safety signals. Some important reactions may take an extremely long time to develop or occur infrequently. Continued monitoring of adverse reactions is thus essential to maintain a comprehensive safety and effectiveness profile of health products.

Benzhexol Side Effects Reported to FDA

The following Benzhexol reports list potential signals of serious risks and new safety information that were identified using the FDA Adverse Event Reporting System (FAERS).
FAERS is a database that contains information on adverse event and medication errors reports submitted to FDA by healthcare professionals (such as physicians, pharmacists, nurses and others), consumers (such as patients, family members, layers and others) and manufacturers.


The appearance of Benzhexol on this list does not mean that FDA has concluded that the drug has the listed risk. It means that FDA has identified a potential safety issue, but it does not mean that FDA has found a causal relationship between the drug and the listed risk.
Cardiac Arrest
This is a report of a male patient (weight: NA) from CHINA, suffering from the following symptoms/conditions: extrapyramidal disorder,schizophrenia,tachycardia,akathisia, who was treated with Benzhexol Hydrochloride (dosage: NA, start time: Oct 29, 2011), combined with:
  • Invega
  • Propranolol Hydrochloride
  • Alprazolam
and developed a serious reaction and side effect(s). The consumer presented with:
  • Cardiac Arrest
which developed after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Benzhexol Hydrochloride treatment in male patients, resulting in cardiac arrest side effect. The patient was hospitalized.

Memory Impairment, Cerebral Infarction, Treatment Noncompliance
This report suggests a potential Benzhexol Hydrochloride Memory Impairment, Cerebral Infarction, Treatment Noncompliance side effect(s) that can have serious consequences. A 64-year-old female patient (weight: NA) from CHINA was diagnosed with the following symptoms/conditions: NA and used Benzhexol Hydrochloride (dosage: NA) starting Mar 15, 2006. Soon after starting Benzhexol Hydrochloride the patient began experiencing various side effects, including:
  • Memory Impairment
  • Cerebral Infarction
  • Treatment Noncompliance
Drugs used concurrently:
  • Risperdal
  • Risperdal
Although Benzhexol Hydrochloride demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as memory impairment, may still occur.

Psychotic Disorder
This Psychotic Disorder problem was reported by a physician from CHINA. A male patient (weight: NA) was diagnosed with the following symptoms/conditions: NA. On Dec 09, 2011 this consumer started treatment with Benzhexol (dosage: NA). The following drugs were being taken at the same time:
  • Clonazepam (4 Mg Twice In The Evening)
  • Clonazepam (20 Mg Stat (immediately))
  • Clonazepam
  • Clonazepam (4 Mg Orally Twice In The Evening)
  • Paliperidone
When commencing Benzhexol, the patient experienced the following unwanted symptoms/side effects:
  • Psychotic Disorder
The patient was hospitalized.Although all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as psychotic disorder, may become evident only after a product is in use by the general population.

Psychiatric Symptom
This is a report of a 30-year-old male patient (weight: NA) from JAPAN. The patient developed the following symptoms/conditions: NA and was treated with Benzhexol (dosage: NA) starting Oct 24, 2011. Concurrently used drugs:
  • Risperidone
  • Aripiprazole
  • Abilify
Soon after that, the consumer experienced the following side effects:
  • Psychiatric Symptom
The patient was hospitalized. This opens a possibility that Benzhexol treatment could cause the above reactions, including psychiatric symptom, and some male subjects may be more susceptible.


Schizophrenia
A male patient (weight: NA) from HONG KONG with the following symptoms/conditions: NA started Benzhexol treatment (dosage: NA) on Jan 25, 2011. Soon after starting Benzhexol treatment, the subject experienced various side effects, including:
  • Schizophrenia
Concurrently used drugs: NA.The patient was hospitalized. This finding indicates that some male patients could be more vulnerable to Benzhexol.

Restlessness, Insomnia
A 29-year-old male patient from JAPAN (weight: NA) experienced symptoms, such as: NA and was treated with Benzhexol(dosage: NA). The treatment was initiated on Apr 12, 2011. After that a consumer reported the following side effect(s):
  • Restlessness
  • Insomnia
Concurrently used drugs, which potentially could have contributed to side effect(s) or affected Benzhexol efficacy:
  • Abilify (6mg 8-22mar11(15d) 12mg 23mar-7apr11(16d) 18mg 8-12apr11(5d))
  • Risperidone
  • Zolpidem
  • Olanzapine (Olanzapine Orodispersible Tabs)
The patient was hospitalized.

Social Problem
In this report, Benzhexol was administered for the following condition: NA.A 29-year-old male consumer from JAPAN (weight: NA) started Benzhexol treatment (dosage: NA) on Apr 12, 2011.Sometime after starting the treatment, the patient complained of the following side effect(s):
  • Social Problem
A possible interaction with other drugs could have contributed to this reaction:
  • Risperidone
  • Zolpidem
  • Abilify (6mg 8-22mar11(15d) 12mg 23mar-7apr11(16d) 18mg 8-12apr11(5d))
  • Olanzapine (Olanzapine Orodispersible Tabs)
The patient was hospitalized.Establishing a causal relationship between a specific drug and consumer's side effects is complex, but it is possible that in this report Benzhexol treatment could be related to the listed above side effect(s).

Suicide Attempt, Somnolence, Intentional Overdose, Hyperhidrosis
This is a report of the following Benzhexol side effect(s):
  • Suicide Attempt
  • Somnolence
  • Intentional Overdose
  • Hyperhidrosis
A 22-year-old female patient from CHINA (weight: NA) presented with the following condition: schizophrenia and received a treatment with Benzhexol (dosage: NA) starting: NS.The following concurrently used drugs could have generated interactions:
  • Risperdal
  • Risperdal
  • Risperdal
  • Risperdal
This report suggests that a Benzhexol treatment could be associated with the listed above side effect(s).

Amnesia, Hallucinations, Mixed, Vision Blurred
This Benzhexol (trihexyphenidyl) report was submitted by a 54-year-old male consumer from UNITED KINGDOM (weight: NA). The patient was diagnosed with: dystonia,tremor and Benzhexol (trihexyphenidyl) was administered (dosage: 1 Mg 1x Per 1 Day) starting: Apr 25, 2006. The consumer developed a set of symptoms:
  • Amnesia
  • Hallucinations, Mixed
  • Vision Blurred
Other drugs used simultaneously: NA.Those unexpected symptoms could be linked to a Benzhexol (trihexyphenidyl) treatment, however establishing a potential drug-safety problem requires a more detailed clinical analysis.



Keep Track of Side Effects

Note Your Observations

It is really important to keep of your symptoms, right from the time you start a new medicine. You can do it any way you prefer: in a notebook, in a computer file or using our online tool. You should also note down any other medicines you are taking at the same time, because there could be an interaction between these medicines.

Why Your Notes are Important

Your notes could be helpful in several ways:

  • You can use them to remind you of details that may alert your health care professional(s) to a problem
  • You will have a record to refer to in the future, in case you are ever prescribed the same medicine again

  • Log Form

    You can use the following log form to write down important information, like the date and time you experienced a side effect and your symptoms, how strong the symptoms were, and any other medicines you were using.

    Medicine Name and Dosage:
    Side Effects Scale Date & Time Other Medicine(s) or Treatment(s)
    Scale: 1 = very mild to 10 = very bad

    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.


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    Benzhexol Safety Alerts, Active Ingredients, Usage Information

    More About Benzhexol

    Side Effects reported to FDA: 9

    Benzhexol safety alerts: No

    Reported hospitalizations: 5

    Latest Benzhexol clinical trials