Thomas Labs or Thomas Laboratories is the company that manufacturers a majority of the Over the counter fish antibiotics like Fish Mox & Fish Pen. They have been in business since 1978 and have been pharmacist owned and operated since then. They are located in Arizona and in addition to fish antibiotics they have dozens of other products like diatomaceous earth or other pet care supplements and medications.
Thomas Labs manufactures high quality, safe and effective animal health products and they use natural ingredients, homeopathic remedies and organic products.
Steve Thomas, R.Ph. is the President and Owner of Thomas Labs.