Edrophonium
Also known as: Enlon, Tensilon
Edrophonium is a diagnostic medication used exclusively in the veterinary clinic, primarily to test for a muscle weakness condition called **myasthenia gravis**. - **Rapid Action:** The drug works within seconds to temporarily restore muscle strength in affected pets, but its effects wear off very quickly. - **Monitoring:** Your veterinarian will closely monitor your pet's heart rate and breathing during the test. - **Side Effects:** You may notice brief side effects like drooling, nausea, or muscle twitching. The veterinary team will have an antidote (atropine) drawn up and ready to use immediately if any serious heart rate drops occur.
Dosage must be set by your veterinarian for your specific pet. Never give human medication or another pet’s prescription without veterinary guidance.
How it is given
Possible side effects
- Nausea
- Vomiting
- Increased salivation
- Diarrhoea
- Muscle fasciculations
- Severe bradyarrhythmias
- Asystole
Cautions & contraindications
- Mechanical gastrointestinal obstruction
- Mechanical urinary tract obstruction
- Peritonitis
- Use with caution in patients with **bronchial disease** (especially feline asthma), **bradycardia** (and other arrhythmias), **hypotension**, **renal impairment**, or **epilepsy**. > **Clinical Pearl:** If edrophonium availability is limited, neostigmine may be used as an alternative diagnostic test for myasthenia gravis.
Drug interactions
- Depolarizing neuromuscular relaxants (e.g., suxamethonium): Potentiates neuromuscular blockade
Frequently asked questions
What is Edrophonium used for in pets?
Edrophonium is a diagnostic medication used exclusively in the veterinary clinic, primarily to test for a muscle weakness condition called **myasthenia gravis**. - **Rapid Action:** The drug works within seconds to temporarily restore muscle strength in affected pets, but its effects wear off very quickly. - **Monitoring:** Your veterinarian will closely monitor your pet's heart rate and breathing during the test. - **Side Effects:** You may notice brief side effects like drooling, nausea, or muscle twitching. The veterinary team will have an antidote (atropine) drawn up and ready to use immediately if any serious heart rate drops occur.
Is Edrophonium safe for my pet?
Dosage must be set by your veterinarian for your specific pet. Never give human medication or another pet’s prescription without veterinary guidance.
This article is for general education and is not a substitute for professional veterinary advice. If your pet is unwell, please consult a veterinarian.
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