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PYRISTINON (Pyridostigmine Bromide)

Generic Name

Pyridostigmine Bromide

Brand Name


Dosage Form


Strength and Dosage


Therapeutic Category

CNS – Treatment of Myasthenia Gravis

Patient Information Leaflet

Summary of Product Characteristics pdfIcon


Active ingredient present in PYRISTINON is Pyridostigmine bromide.
It is used for the treatment of myasthenia gravis. In patients who suffer from myasthenia gravis the muscles quickly become tired and weak and, in severe cases, the muscles may become paralysed.
Myasthenia gravis is caused by excessive activity in the body of a protein called cholinesterase.
Pyridostigmine belongs to a group of medicines known as cholinesterase inhibitors. Cholinesterase inhibitors stop the excessive activity of cholinesterase and in this way help muscles to work properly.
PYRISTINON is also used to treat some rare forms of constipation (paralytic ileus) and inability to pass urine after an operation.


Do not take PYRISTINON if you:
• Are allergic (hypersensitive) to pyridostigmine, bromides or any of the other ingredients of Mestinon.
• Are constipated or cannot urinate, unless your doctor has told you to use this medicine. This is because PYRISTINON is only for some types of constipation and inability to pass urine (see Section 1).
Take special care with PYRISTINON
Before treatment with PYRISTINON, tell your doctor if you:
• Suffer from asthma or have other chest problems such as wheeziness, difficulty in breathing or chronic cough.
• Have recently had coronary obstruction (heart attack), have a slow heart beat or any other heart condition.
• Have low blood pressure.
• Have a stomach ulcer.
• Have epilepsy.
• Have Parkinson’s disease.
• Have kidney problems.
• Suffer from a condition called vagotonia (this is a condition where overactivity of the vagus nerve causes symptoms such as slow heart rate, low blood pressure, constipation, sweating and painful muscle spasms).
• Have an overactive thyroid gland
• Have had an operation to remove your thymus gland.
There is no evidence to suggest that PYRISTINON has any special effects on elderly patients.

Taking other medicines
Please tell your doctor or pharmacist if you are taking or have recently taken any other medicines, including medicines obtained without a prescription.

This is extremely important, as using more than one medicine at the same time can strengthen or weaken the effect of the medicines. In particular, tell your doctor if you are taking any of the following medicines:
• Medicines known as steroids or other
immunosuppressant medicines.
• Medicines known as antimuscarinics
(e.g. atropine, hyoscine).
• Medicines containing methylcellulose
• Antibiotics
• Medicines to treat an irregular heart beat
• Other medicines that interfere with transmission between nerves and muscles

If you are going to have surgery
Tell your doctor that you are taking PYRISTINON.
PYRISTINON can stop the effect of some medicines used to relax muscles during surgery (e.g. pancuronium, vencuronium).
PYRISTINON can also prolong the effect of other muscle relaxants (e.g. suxamethonium).

Pregnancy and breast-feeding

Tell your doctor before you start treatment if you:
• Are pregnant, if you think you are pregnant, or if you intend to become pregnant.
• Are breast-feeding, as PYRISTINON passes into breast milk in small amounts.
Your doctor will then decide if you can take this medicine.

Driving and using machines
PYRISTINON may reduce the sharpness of your eyesight and therefore your ability to drive or use machines.
Do not drive or operate machines if this medicine affects your ability to see clearly.

Important information about some of the ingredients of PYRISTINON
PYRISTINON contain lactose. Therefore, if you have been told by your doctor that you have intolerance to some sugars, contact your doctor before taking this medicinal product


Swallow the tablets with water or another nonalcoholic drink. If you have difficulty swallowing, you can break the tablets into pieces.
You should check with your doctor or pharmacist if you are not sure how to take PYRISTINON.
The dose will depend on your illness, your needs and on your age as follows:
For myasthenia gravis:
• The usual adult dose is 1/2 to 2 tablets (30 to 120 mg PYRISTINON) to be taken five to six times daily or higher doses if needed, as recommended by your doctor.
• For children under 6 years, the usual dose is 1/2 a tablet (30 mg). For children aged 6 to 12 years, the usual starting dose is 1 tablet (60 mg). The doctor will then gradually increase the dose until maximum improvement is seen. In children the total dose per day is usually 30 to 360 mg.
The tablets take 30 to 60 minutes to start working after you have taken them.
The effect of each dose should last about four hours during the day and about six hours at night.
You should try to take your medicine so that it can work when your muscles are needed most, for example, when you get up and about 30 to 60 minutes before a meal.

For paralytic ileus (constipation) and post-operative inability to pass urine:
• The usual adult dose is 1 to 4 tablets (60 to 240 mg PYRISTINON) daily and for children 1/4 to 1 tablet (15 to 60 mg) daily, depending on the needs of the patient.

If you take more PYRISTINON than you should
If you take too many tablets or someone else
accidentally takes your medicine, contact your doctor, pharmacist or nearest hospital straight away.

If you forget to take PYRISTINON
If you forget to take one of your daily doses, take it as soon as you remember, and take the next dose at the normal time. Do not take a double dose to make up for a forgotten dose. If you miss more than a single dose, you should contact your doctor for advice.


Like all medicines, PYRISTINON can cause side effects, although not everybody gets them.
Possible side effects with PYRISTINON:
Side effects of unknown frequency:
• visual disturbance, producing more tears than usual an irregular heartbeat, heart block, low blood pressure, fainting
• producing more phlegm than usual combined with constriction of the airways
• feeling sick, vomiting, diarrhoea, stomach cramps, producing more saliva than usual
• rash
• excessive sweating
• muscle weakness and twitching, shaking, muscle cramps
• sudden, compelling urge to urinate.


Keep PYRISTINON out of the reach and sight of children.
Store the bottle in the original outer carton.
Keep the bottle tightly closed in order to protect from moisture.
Do not store above 25 °C.
Do not use PYRISTINON after the expiry date which is stated on the bottle label and outer carton after the text ˝EXP˝. The expiry date refers to the last day of that month.
Medicines must not be disposed of via wastewater or household waste. Ask your pharmacist how to dispose of medicines no longer required. These measures will help to protect the environment


What PYRISTINON contains
Active substance: Each tablet contains 60 mg
of pyridostigmine bromide.
Other ingredients: Colloidal hydrated silica, maize starch, lactose monohydrate, talc and magnesium stearate.

What PYRISTINON looks like and contents of the pack
The tablets are scored on one side so that they can be broken into halves or quarters and is imprinted on the other side.
The tablets come in packs of 200.
A desiccant is enclosed in the bottle.

Additional Information

If you are a distributor, please inquire with us about product , importing and/or marketing our products in your country or region. If you are a consumer, don’t hesitate to contact us about more information for this product.

To inquire more about cost effective Taj Brands products, hospital imports, non-available life saving products, please contact us.

The most common markets for this product include the following state . Please inquire with us if your state is not listed:

North India : Jammu & Kashmir ,Himachal Pradesh,Uttar Pradesh ,Uttaranchal , Punjab ,Haryana.
South India : Kerala, Karnataka ,Tamil Nadu,Andhra Pradesh.
East India : Assam ,Manipur, Meghalaya,West Bengal ,Orissa,Sikkim ,Mizoram, Tripura
West India : Goa ,Gujarat ,Rajasthan ,Maharashtra
Central India : Madhya Pradesh, Chattisgarh


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