I have been using Duramycin-10 as my broad spectrum antibiotic, but when trying to buy online today it seems that everyone is out of stock. Is this product being phased out? Jefferspet.com has it for $7.99 (out of stock) and on Amazon there are a few packets for $20+ for the same 75g packet.
Does anyone have a recommendation for a substitute? I prefer a water soluble product. At the moment I have a respiratory thing going through my flock and would like to stop it fast.