Pyridostigmine
別名: Mestinon, Distinon, Kalymin, Regonol
Pyridostigmine is a crucial medication for managing your pet's myasthenia gravis, but the dose must be very precise. * **Strict Dosing:** Give this medication exactly as prescribed by your veterinarian. Do not change the dose without consulting them, as the difference between an effective dose and a toxic dose is very small. * **Administration:** Giving the medication with food may help reduce stomach upset. Liquid forms are often preferred to allow for tiny dose adjustments. * **Watch for Toxicity:** Contact your veterinarian **immediately** if you notice signs of an overdose, which include: excessive drooling, vomiting, diarrhea, extreme weakness, muscle twitching, or difficulty breathing. * **Spontaneous Remission:** In some dogs, myasthenia gravis can resolve on its own over time, so your vet will monitor your pet closely to see if the medication can eventually be reduced or stopped.
劑量必須由獸醫按你寵物的個別情況決定。切勿在沒有獸醫指導下給予人類藥物或其他寵物的處方藥。
用途
- Myasthenia gravis (MG)
- Myasthenia gravis (MG)
- Myasthenia gravis (MG)
- Myasthenia gravis
- Myasthenia gravis (MG)
- Myasthenia gravis (MG)
- Acquired Myasthenia gravis (MG)
- Myasthenia gravis (MG)
- Myasthenia gravis (MG)
- Myasthenia gravis
給藥方式
可能的副作用
- Nausea
- Vomiting
- Diarrhea
- Excessive salivation (ptyalism)
- Sweating (in species with sweat glands)
- Increased bronchial secretions
- Bronchospasm
- Pulmonary edema
- Respiratory paralysis
- Miosis (pupil constriction)
- Blurred vision
- Lacrimation (tearing)
- Bradycardia
- Tachycardia
- Cardiospasm
注意事項與禁忌
- Hypersensitivity to anticholinesterase compounds or bromides
- Mechanical or physical obstructions of the urinary tract
- Mechanical or physical obstructions of the gastrointestinal (GI) tract
- Mechanical gastrointestinal obstruction
- Mechanical urinary tract obstruction
- Peritonitis
- > **High-Risk Patients:** Use with extreme caution in patients with bronchospastic disease, epilepsy, hyperthyroidism, bradycardia or other arrhythmias, vagotonia, or GI ulcer diseases. * **Pregnancy/Nursing:** FDA Category C. Excreted in maternal milk; use with caution in nursing patients. * **Dose Titration:** Doses must be carefully titrated. High doses can cause a cholinergic crisis, which presents as profound weakness and can be difficult to distinguish from a myasthenic crisis.
藥物相互作用
- Atropine: Antagonizes the muscarinic effects of pyridostigmine. Use cautiously as it can mask early clinical signs of a life-threatening cholinergic crisis.
- Corticosteroids: May decrease the anticholinesterase activity of pyridostigmine. Discontinuing corticosteroids may suddenly increase anticholinesterase activity, requiring dose adjustments.
- Dexpanthenol: Theoretically may have additive cholinergic effects when used concurrently.
- Neuromuscular blocking drugs (e.g., aminoglycosides): May necessitate increased dosages of pyridostigmine when treating or diagnosing myasthenic patients.
- Magnesium (parenteral): Can antagonize anticholinesterase therapy due to its direct depressant effect on skeletal muscle.
- Muscle Relaxants: May prolong the Phase I block of depolarizing muscle relaxants (e.g., succinylcholine) and antagonize the actions of non-depolarizing agents (e.g., pancuronium, atracurium).
- Aminoglycosides: May antagonize the neuromuscular effects of pyridostigmine
- Clindamycin: May antagonize the neuromuscular effects of pyridostigmine
- Lincomycin: May antagonize the neuromuscular effects of pyridostigmine
常見問題
Pyridostigmine用於寵物有甚麼用途？
Pyridostigmine is a crucial medication for managing your pet's myasthenia gravis, but the dose must be very precise. * **Strict Dosing:** Give this medication exactly as prescribed by your veterinarian. Do not change the dose without consulting them, as the difference between an effective dose and a toxic dose is very small. * **Administration:** Giving the medication with food may help reduce stomach upset. Liquid forms are often preferred to allow for tiny dose adjustments. * **Watch for Toxicity:** Contact your veterinarian **immediately** if you notice signs of an overdose, which include: excessive drooling, vomiting, diarrhea, extreme weakness, muscle twitching, or difficulty breathing. * **Spontaneous Remission:** In some dogs, myasthenia gravis can resolve on its own over time, so your vet will monitor your pet closely to see if the medication can eventually be reduced or stopped.
Pyridostigmine對我的寵物安全嗎？
劑量必須由獸醫按你寵物的個別情況決定。切勿在沒有獸醫指導下給予人類藥物或其他寵物的處方藥。
本文僅供一般健康教育，不能取代專業獸醫意見。如寵物身體不適，請諮詢獸醫。