Virbac Recalls Soloxine® (Levothyroxine Sodium) Thyroid Supplement

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Virbac has recalled four lots of SOLOXINE® (levothyroxine sodium) Thyroid Supplement due to low potency.

Veterinarians are being notified through their preferred distributors to check their clinic pharmacy for the affected product lots listed below. The lot number is listed on the side of the bottle in a text field on the product label. If clinics have affected product, they are directed to contact their distributor to make arrangements for return of the recalled product.

Affected strengths and lot numbers:

  • SOLOXINE 0.2 mg - lot number 100775
  • SOLOXINE 0.3 mg - lot number 100342
  • SOLOXINE 0.6 mg - lot numbers 100739 and 091277

This recall affects only these specific lots – no other products are affected by this recall.

This recall is being performed to the Veterinary Clinic level with the full knowledge of the Food and Drug Administration.

The recall is being initiated after testing revealed the lots to be below potency. No adverse reactions or illnesses have been reported with these lots. In most cases the clinical signs of a dog receiving a low potency levothyroxine product for a short period of time are unnoticeable.

However, in some cases, a dog that is not receiving an appropriate amount of levothyroxine may show common signs of hypothyroidism (i.e., lethargy, weight gain, or hair loss). For additional concerns about thyroid levels in dogs receiving one of the recalled lots, Virbac recommends pet-owner consultation with their veterinarian regarding thyroid testing 30 days after starting on a new lot of SOLOXINE thyroid supplement.