Indications 

Parsitan (generically known as ethopropazine) is a prescription oral medication used to treat the symptoms of Parkinson’s disease, improve muscle control, reduce stiffness, and limit tremors and abnormal muscle movements.  

Ethopropazine works by blocking the action of acetylcholine, a chemical messenger in the brain that is involved in movement control. By blocking the activity of acetylcholine, it can help to reduce the symptoms of tremors, stiffness, and slow movement that are associated with Parkinson’s disease. 

Use and Dosage 

Parsitan comes in the form of a tablet to take it orally with or without food with effects to be noticed within a few days. Swallow the whole tablet without crushing and chawing it down. Chewing or crushing tablets that are not designed to be chewed or crushed can alter the way the medication is absorbed by the body and can potentially cause harm. 

The usual adult dose of Parsitan is one tablet, taken 2-3 times daily, with or without food. The dosage may be adjusted as needed, based on the individual’s response to the medication. Follow the instructions of the prescribing healthcare provider and do not take more or less of the medication than prescribed. 

Abruptly stopping Parsitan tablet may cause withdrawal symptoms, such as confusion, hallucinations, and delirium, especially in older adults.  

If you miss a dose of Parsitan tablet, take it as soon as you remember. However, if it is almost time for your next dose, skip the missed dose and continue with your regular dosing schedule. Do not take a double dose to make up for a missed one. 

Side Effects 

Common Side Effects  

• Constipation 
• Decreased sweating 
• Dizziness or lightheadedness 
• Drowsiness 
• Dryness of the mouth, nose, or throat 
• Increased sensitivity of the eyes to light 
• Headache 
• Nausea or vomiting 

Serious Side Effects 

• Blurred or double vision 
• Confusion or memory impairment (more common for seniors or those on high doses) 
• Difficult or painful urination (especially for senior men) 
• Drowsiness (severe) 
• Eye pain 
• Fainting 
• Hallucinations (seeing, hearing, or feeling things that are not there) 
• Loss of memory (especially for seniors) 
• Muscle cramps 
• Numbness or weakness in the hands or feet 
• Rapid heartbeat 
• Seizures 
• Shortness of breath or troubled breathing 
• Skin rash 
• Yellowing of the skin or eyes 

Cautions 

• Potential interactions with other medications, which may cause adverse effects or reduce the effectiveness of Parsitan. Talk to a doctor before taking Parsitan with other medications. 
• The potential for side effects such as dry mouth, drowsiness, and blurred vision. These side effects may affect a person’s ability to perform certain tasks, such as driving or operating heavy machinery. 
• The possibility of movement disorders such as tremors, muscle stiffness, or uncontrollable movements. In rare cases, Parsitan may worsen these symptoms or cause new ones to develop. 
• Parsitan may not be suitable for people with certain medical conditions, such as glaucoma, urinary retention, or gastrointestinal obstruction. Talk to a doctor before taking Parsitan if you have any medical conditions or concerns. 
• Parsitan may not be safe for use during pregnancy or while breastfeeding. Talk to a doctor before taking Parsitan if you are pregnant, planning to become pregnant, or breastfeeding. 
• Follow the dosing instructions carefully and do not stop taking Parsitan suddenly, as it may cause withdrawal symptoms. Talk to a doctor before discontinuing the medication. 
• Parsitan may cause an increase in body temperature, which can be dangerous for older adults or people with certain medical conditions. Monitor body temperature while taking Parsitan and talk to a doctor if you experience fever or other symptoms of heat-related illness. 
• Parsitan may cause dizziness or lightheadedness, especially when standing up from a sitting or lying position. It can increase the risk of falls, particularly in older adults. Get up slowly and hold onto a stable object if necessary. 
• Parsitan may cause confusion or memory problems, particularly in older adults. t\Talk to a doctor if you experience these symptoms. 
• Parsitan may affect blood sugar levels and may not be suitable for people with diabetes. Monitor blood sugar levels while taking Parsitan and talk to a doctor if you experience symptoms of low blood sugar, such as sweating, shaking, or confusion. 
• Parsitan may cause an increase in pressure in the eyes, which can be dangerous for people with glaucoma. Talk to a doctor before taking Parsitan if you have glaucoma or a history of eye problems. 
• Parsitan may cause dry skin or a rash in some people. Talk to a doctor if you experience these symptoms.