Trihexyphenidyl Hydrochloride

Basal Ganglia Diseases, Extrapyramidal symptoms caused by dibenzoxazepines, Extrapyramidal symptoms caused by thioxanthenes + 5 more

Treatment

11 FDA approvals

7 Active Studies for Trihexyphenidyl Hydrochloride

What is Trihexyphenidyl Hydrochloride

Trihexyphenidyl

The Generic name of this drug

Treatment Summary

Trihexyphenidyl is a drug used to treat Parkinson’s disease and other movement disorders caused by taking certain medications. It was discovered in 1949 and is rarely used today due to its significant side effects. It has been mostly replaced by medications like levodopa. Trihexyphenidyl was approved by the FDA in 1949.

Trihexyphenidyl Hydrochloride

is the brand name

image of different drug pills on a surface

Trihexyphenidyl Hydrochloride Overview & Background

Brand Name

Generic Name

First FDA Approval

How many FDA approvals?

Trihexyphenidyl Hydrochloride

Trihexyphenidyl

1987

71

Approved as Treatment by the FDA

Trihexyphenidyl, also known as Trihexyphenidyl Hydrochloride, is approved by the FDA for 11 uses which include arteriosclerotic Parkinsonism and Extrapyramidal disorder .

arteriosclerotic Parkinsonism

Extrapyramidal disorder

Helps manage Extrapyramidal disorder

Idiopathic Parkinson's Disease

Parkinson Disease

Extrapyramidal symptoms caused by thioxanthenes

Helps manage Extrapyramidal symptoms caused by thioxanthenes

Extrapyramidal symptoms caused by dibenzoxazepines

Helps manage Extrapyramidal symptoms caused by dibenzoxazepines

phenothiazine

Helps manage Extrapyramidal symptoms caused by phenothiazines

Basal Ganglia Diseases

Helps manage Extrapyramidal disorder

Butyrophenones

Helps manage Extrapyramidal symptoms caused by butyrophenones

Parkinsonism post encephalitic

Arteriosclerosis

Effectiveness

How Trihexyphenidyl Hydrochloride Affects Patients

Trihexyphenidyl is used to treat Parkinson's Disease, or to reduce certain effects of medicine on the body. It only needs to be taken occasionally, not every day, and is generally safe to take in large doses. Those taking this medication should have their eye pressure monitored and be aware of the risk of excessive sweating and heat stroke.

How Trihexyphenidyl Hydrochloride works in the body

Trihexyphenidyl works by blocking receptors in the brain, called muscarinic acetylcholine receptors. These receptors are responsible for sending signals that affect movement. Blocking these receptors helps to reduce the symptoms associated with Parkinson's disease or other movement disorders. Trihexyphenidyl may also increase dopamine release, which helps to further improve movement. The exact way this drug works is not yet fully understood.

When to interrupt dosage

The prescribed amount of Trihexyphenidyl Hydrochloride is contingent upon the determined condition, comprising phenothiazine, Extrapyramidal symptoms induced by dibenzoxazepines and Butyrophenones. The quantity of dosage relies on the mode of administration (e.g. Tablet or Tablet - Oral) indicated in the table underneath.

Condition

Dosage

Administration

Basal Ganglia Diseases

, 2.0 mg/mL, 5.0 mg, 2.0 mg, 0.4 mg/mL

, Oral, Solution, Solution - Oral, Tablet, Tablet - Oral, Syrup, Syrup - Oral, Elixir, Elixir - Oral

Extrapyramidal symptoms caused by dibenzoxazepines

, 2.0 mg/mL, 5.0 mg, 2.0 mg, 0.4 mg/mL

, Oral, Solution, Solution - Oral, Tablet, Tablet - Oral, Syrup, Syrup - Oral, Elixir, Elixir - Oral

Extrapyramidal symptoms caused by thioxanthenes

, 2.0 mg/mL, 5.0 mg, 2.0 mg, 0.4 mg/mL

, Oral, Solution, Solution - Oral, Tablet, Tablet - Oral, Syrup, Syrup - Oral, Elixir, Elixir - Oral

Arteriosclerosis

, 2.0 mg/mL, 5.0 mg, 2.0 mg, 0.4 mg/mL

, Oral, Solution, Solution - Oral, Tablet, Tablet - Oral, Syrup, Syrup - Oral, Elixir, Elixir - Oral

Butyrophenones

, 2.0 mg/mL, 5.0 mg, 2.0 mg, 0.4 mg/mL

, Oral, Solution, Solution - Oral, Tablet, Tablet - Oral, Syrup, Syrup - Oral, Elixir, Elixir - Oral

phenothiazine

, 2.0 mg/mL, 5.0 mg, 2.0 mg, 0.4 mg/mL

, Oral, Solution, Solution - Oral, Tablet, Tablet - Oral, Syrup, Syrup - Oral, Elixir, Elixir - Oral

Parkinson Disease

, 2.0 mg/mL, 5.0 mg, 2.0 mg, 0.4 mg/mL

, Oral, Solution, Solution - Oral, Tablet, Tablet - Oral, Syrup, Syrup - Oral, Elixir, Elixir - Oral

Parkinsonism post encephalitic

, 2.0 mg/mL, 5.0 mg, 2.0 mg, 0.4 mg/mL

, Oral, Solution, Solution - Oral, Tablet, Tablet - Oral, Syrup, Syrup - Oral, Elixir, Elixir - Oral

Warnings

Trihexyphenidyl Hydrochloride Contraindications

Condition

Risk Level

Notes

Severe Hypersensitivity Reactions

Do Not Combine

Trihexyphenidyl may interact with Pulse Frequency

There are 20 known major drug interactions with Trihexyphenidyl Hydrochloride.

Common Trihexyphenidyl Hydrochloride Drug Interactions

Drug Name

Risk Level

Description

Aclidinium

Major

The risk or severity of adverse effects can be increased when Trihexyphenidyl is combined with Aclidinium.

Cimetropium

Major

The risk or severity of adverse effects can be increased when Trihexyphenidyl is combined with Cimetropium.

Eluxadoline

Major

The risk or severity of constipation can be increased when Trihexyphenidyl is combined with Eluxadoline.

Glycopyrronium

Major

The risk or severity of adverse effects can be increased when Trihexyphenidyl is combined with Glycopyrronium.

Ipratropium

Major

The risk or severity of adverse effects can be increased when Trihexyphenidyl is combined with Ipratropium.

Trihexyphenidyl Hydrochloride Toxicity & Overdose Risk

Symptoms of trihexyphenidyl overdose include a dry mouth, no sweating, dilated pupils, nausea, vomiting, fast heartbeat, high fever, reduced digestive activity, difficulty or inability to urinate, rash, confusion, restlessness, poor coordination, paranoia, delirium, hallucinations, coma, trouble breathing, and circulatory failure. These symptoms can be treated with supportive care such as maintaining a clear airway and using a medication called physostigmine. If left untreated, an overdoes of trihexyphenidyl can be fatal, particularly in children.

image of a doctor in a lab doing drug, clinical research

Trihexyphenidyl Hydrochloride Novel Uses: Which Conditions Have a Clinical Trial Featuring Trihexyphenidyl Hydrochloride?

At present, 8 active trials are assessing the utility of Trihexyphenidyl Hydrochloride in providing relief from Extrapyramidal symptoms caused by thioxanthenes, encephalitic Parkinsonism and dibenzoxazepine induced Extrapyramidal symptoms.

Condition

Clinical Trials

Trial Phases

Arteriosclerosis

1 Actively Recruiting

Not Applicable

Parkinsonism post encephalitic

0 Actively Recruiting

Extrapyramidal symptoms caused by dibenzoxazepines

0 Actively Recruiting

Butyrophenones

0 Actively Recruiting

Basal Ganglia Diseases

0 Actively Recruiting

Extrapyramidal symptoms caused by thioxanthenes

0 Actively Recruiting

phenothiazine

0 Actively Recruiting

Parkinson Disease

6 Actively Recruiting

Phase 2, Not Applicable

Trihexyphenidyl Hydrochloride Reviews: What are patients saying about Trihexyphenidyl Hydrochloride?

5

Patient Review

3/30/2019

Trihexyphenidyl Hydrochloride for Parkinson Symptoms

This drug stops my tremors which is amazing. The only downside is that it causes a really dry mouth and I have no appetite. Consequently, I've lost 8 pounds since starting the medication 3 months ago.

5

Patient Review

1/7/2010

Trihexyphenidyl Hydrochloride for Parkinsonism due to Degenerations in the Brain

4.3

Patient Review

3/15/2013

Trihexyphenidyl Hydrochloride for Parkinson's Disease

I'm curious about the name of the drug I'm taking. I have the generic version, but it would be nice to know what exactly I'm consuming.

4.3

Patient Review

11/8/2009

Trihexyphenidyl Hydrochloride for Parkinson Symptoms

4

Patient Review

3/15/2010

Trihexyphenidyl Hydrochloride for Parkinson Symptoms

I started this medication recently and it's already helping my essential tremor. I'm optimistic that it will help stop the shaking completely.

4

Patient Review

8/18/2013

Trihexyphenidyl Hydrochloride for Parkinson Symptoms

When taken with other medication, this treatment seems to help improve strength and relieve tremors.

3.3

Patient Review

2/28/2010

Trihexyphenidyl Hydrochloride for Parkinsonism due to Degenerations in the Brain

my brother takes it for symptoms resulring from phych drugs and he has started to fall without warning several times a day. Went to primary care md today said to take him off of it

3.3

Patient Review

6/22/2011

Trihexyphenidyl Hydrochloride for Parkinson's Disease

I was getting regular facial spasms and this treatment has helped to lessen their frequency.

3.3

Patient Review

4/10/2017

Trihexyphenidyl Hydrochloride for Parkinson Symptoms

I wake up with severe pain in my neck and ear.

3

Patient Review

9/14/2009

Trihexyphenidyl Hydrochloride for Parkinson's Disease

1

Patient Review

6/22/2012

Trihexyphenidyl Hydrochloride for Parkinson Symptoms

This treatment has really helped me to walk better.
image of drug pills surrounding a glass of water symbolizing drug consumption

Patient Q&A Section about trihexyphenidyl hydrochloride

These questions and answers are submitted by anonymous patients, and have not been verified by our internal team.

What are the side effects of trihexyphenidyl?

"Abdominal or stomach cramps or pain, delusions of persecution, mistrust, suspiciousness, or combativeness, excessive dryness of the mouth, nausea or vomiting, seeing, hearing, or feeling things that are not there, skin rash, stomach pain, swollen, painful, or tender lymph glands on the side of the face or neck."

Answered by AI

Is trihexyphenidyl a sedative?

"Although ARTANE is not classified as a controlled substance, it is possible that it will be abused because it has stimulant and euphoric properties."

Answered by AI

What does trihexyphenidyl do to the brain?

"Trihexyphenidyl helps to control symptoms of Parkinson's disease by blocking the receptors for acetylcholine. This restores the balance of acetylcholine and dopamine in the brain."

Answered by AI

What is trihexyphenidyl Hydrochloride used for?

"Trihexyphenidyl is a medication used to treat the symptoms of Parkinson's disease, such as difficulties with movement, muscle control, and balance. It is also used to control extrapyramidal symptoms, such as tremor, slurred speech, caused by certain medications."

Answered by AI

Clinical Trials for Trihexyphenidyl Hydrochloride

Image of London Health Sciences Center.London ,Ontario in London, Canada.

Wearable Technology for Parkinson's Disease

18+
All Sexes
London, Canada

This study aims to evaluate whether wearable technology can improve the management of motor symptoms in people with Parkinson's disease (PD) who experience motor fluctuations throughout the day. The project will use a smartwatch and mobile app (KinesiaU) to continuously track movement, allowing for more responsive and personalized treatment compared to traditional monitoring methods. In this pilot randomized controlled trial, 32 participants will be assigned to either: A control group receiving standard care, or A wearable device group receiving standard care plus using the smartwatch. Outcomes will be assessed over a 4-week period, focusing on changes in motor function, quality of life, and self-management. The study will also examine feasibility, adherence, and data quality. If successful, this trial will provide critical evidence for integrating wearable devices into routine clinical care for PD, paving the way for larger efficacy trials and more patient-centered care strategies.

Waitlist Available
Has No Placebo

London Health Sciences Center.London ,Ontario (+1 Sites)

Image of University of Florida, Norman Fixel Institute for Neurological Diseases in Gainesville, United States.

Deep Brain Stimulation for Parkinson's Disease

45 - 85
All Sexes
Gainesville, FL

Nearly one-million people in North America are now living with Parkinson's disease (PD), and that number is projected to rise to nearly 1.2 million by 2030. With advancements in neuromodulatory technologies, increasingly more of these individuals elect to undergo deep brain stimulation (DBS) surgery in order to control symptoms of the disease, including refractory tremor, medication-induced dyskinesias, and PD-associated dystonia. The two most common DBS neural targets for controlling these symptoms are the globus pallidus internal segment (GPi) and the subthalamic nucleus (STN). Recent meta-analyses have shown relative equivalence between these two sites at controlling core PD symptoms. To date, there is not conclusive evidence regarding the potential impact of DBS to GPi or STN on laryngeal-mediated functions of voice, swallowing, and cough, and consequently no guidance on whether these outcomes should be considered when selecting DBS target. Therefore, the goal of this project is to determine the impact of DBS neural target (STN versus GPi), lead location within the target, laterality, and stimulation settings on voice, swallow and cough function in people with PD. The larynx is an important player in each of these functions, and our central hypothesis is that spread of stimulation to corticobulbar fibers in the genu of the internal capsule have deleterious effects on laryngeal motor control, resulting in voice, swallow, and cough dysfunction. We have identified three specific aims for this application: 1.) To compare laryngeal function during volitional voice tasks pre-post DBS, and when DBS placement is bilateral versus unilateral for STN and GPi targets. 2.) To compare laryngeal function during volitional and induced cough tasks pre-post DBS, and when DBS placement is bilateral versus unilateral for STN and GPi targets. 3.) To compare airway safety associated with laryngeal onset, degree, and duration of maximum closure during swallowing, pre-post DBS, and when DBS placement is bilateral versus unilateral for STN and GPi targets. These hypotheses were developed based on compelling published and unpublished preliminary data. We will accomplish these aims by enrolling people with PD who are being considered for DBS surgery. We will measure physiologic, functional, and quality of life parameters of voice, swallow and cough pre- and post-surgically. The realization of the proposed aims is significant because it will address a substantial gap in our understanding of DBS outcomes related to communication and airway protection, which are important in terms of morbidity, mortality, and quality of life for patients with PD. The translational potential to provide additional guidance to DBS surgical teams regarding whether voice, swallow or cough functions should be considered with selecting DBS target and/or laterality is high. Ultimately, the project fits squarely within the overarching goal of the research team to deliver the best possible care to people with PD.

Recruiting
Has No Placebo

University of Florida, Norman Fixel Institute for Neurological Diseases

Karen Hegland, Ph.D.

Image of Integrated Health and Movement Science Laboratory, Saint Louis University in St. Louis, United States.

Community Walking Program for Parkinson's Disease

30 - 85
All Sexes
St. Louis, MO

This study will investigate the feasibility of a 6-month community walking program for people with Parkinson's disease (PD) and their care partners in greater Saint Louis, Missouri region. The walking program will consist of weekly, organized walking groups at the Missouri Botanical Gardens. Participants in the program will use Nordic walking poles during the walks. The walking group(s) will meet once per week and will be supervised by walking group leaders from Saint Louis University. Participants will be given a smart watch to wear that will help step counts will be tracked in real-time. The program is designed to get people with Parkinson's disease out of their homes, cultivate a culture of connection with others with Parkinson's disease, and to be collectively accountable for a common goal toward increasing their physical and social engagement in their communities.

Recruiting
Has No Placebo

Integrated Health and Movement Science Laboratory, Saint Louis University (+1 Sites)

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Image of University of Rochester Medical Center for Health + Technology in Rochester, United States.

Palliative Care for Parkinson's Disease

18+
All Sexes
Rochester, NY

The purpose of this study is to learn more about the effectiveness of palliative care training for community physicians and telemedicine support services for patients and carepartners with Parkinson's disease and Lewy Body Dementia (LBD) or related conditions and their care partners. Palliative care is a treatment approach focused on improving quality of life by relieving suffering in the areas of physical symptoms such as pain, psychiatric symptoms such as depression, psychosocial issues and spiritual needs. Telemedicine is the use of technology that allows participants to interact with a health care provider without being physically near the provider.

Recruiting
Quick Reply
Has No Placebo

University of Rochester Medical Center for Health + Technology

Benzi Kluger, MD