Thiamine (Vitamin B1)
Also known as: Thiamilate, Horse Care Durvit B-1 Crumbles, Thia-Dex, Vitamin B-1 Powder, Vitamin B1
* **Dietary Management:** Ensure your pet is eating a balanced, commercially prepared diet. Avoid feeding raw fish or exclusively raw meat diets, as these can destroy thiamine and lead to severe deficiency. * **Administration:** If your pet is prescribed thiamine, give it exactly as directed by your veterinarian. Do not skip doses. * **Observation:** Contact your veterinarian immediately if you notice signs of weakness, stumbling, seizures, or if your cat's head drops down toward its chest (ventroflexion). * **Investigation:** An epidemiologic investigation into the cause of the deficiency (diet, access to certain plants, raw fish) should be performed to prevent recurrence.
Dosage must be set by your veterinarian for your specific pet. Never give human medication or another pet’s prescription without veterinary guidance.
What it is used for
- Polioencephalomalacia
- Thiamine deficiency
- Polioencephalomalacia
- Thiamine deficiency
- Thiamine deficiency
- Adjunctive treatment of hepatic lipidosis
- Thiamine deficiency
- Thiamine deficiency
- Polioencephalomalacia
- Polioencephalomalacia
- Polioencephalomalacia
- Adjunctive therapy of lead poisoning
- Thiamine deficiency
- Thiamine deficiency
How it is given
Possible side effects
- Hypersensitivity or anaphylactic reactions (rare)
- Vasovagal anaphylactic response in cats (cardiac arrest, severe bradycardia, apnea, hypotension, collapse) when given SC (rare)
- Injection site tenderness or muscle soreness (IM)
- Pain at the injection site (IM/SC)
- Anaphylaxis or hypersensitivity reactions (primarily with rapid IV administration)
Cautions & contraindications
- Known hypersensitivity to thiamine or any of its components
- Known hypersensitivity to thiamine
- > **Anaphylaxis Warning:** Hypersensitivity reactions, though rare, can occur. A severe vasovagal anaphylactic response has been noted in a small number of cats following subcutaneous administration. * **Administration:** Intravenous administration should be performed slowly or diluted in fluids to minimize adverse cardiovascular reactions. * **Laboratory Interference:** May cause false-positive serum uric acid results (phosphotungstate method) and urobilinogen urine spot tests (Ehrlich's reagent). Large doses may interfere with theophylline concentration assays (Schack and Wexler method).
Drug interactions
- Neuromuscular blocking agents: Thiamine may enhance the activity of neuromuscular blocking agents; clinical significance is unknown.
Frequently asked questions
What is Thiamine (Vitamin B1) used for in pets?
* **Dietary Management:** Ensure your pet is eating a balanced, commercially prepared diet. Avoid feeding raw fish or exclusively raw meat diets, as these can destroy thiamine and lead to severe deficiency. * **Administration:** If your pet is prescribed thiamine, give it exactly as directed by your veterinarian. Do not skip doses. * **Observation:** Contact your veterinarian immediately if you notice signs of weakness, stumbling, seizures, or if your cat's head drops down toward its chest (ventroflexion). * **Investigation:** An epidemiologic investigation into the cause of the deficiency (diet, access to certain plants, raw fish) should be performed to prevent recurrence.
Is Thiamine (Vitamin B1) 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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