The thick-billed euphonia (Euphonia laniirostris) is a species of bird in the family Fringillidae, formerly placed in the Thraupidae. This euphonia measures... The thick-billed euphonia (Euphonia laniirostris) is a species of bird in the family Fringillidae, formerly placed in the Thraupidae. This euphonia measures 3.9 inches. The male has entirely yellow underparts from throat to vent save for a small terminal patch of white on the undertail.
Uses. Metronidazole is used to treat a variety of infections. It belongs to a class of antibiotics known as nitroimidazoles. It works by stopping the growth of bacteria and protozoa. This antibiotic only treats bacterial and protozoal infections.
1 Metronidazole (Flagyl). Metronidazole is the most commonly used antibiotic for giardia infection. Side effects may include nausea and a metallic taste in the mouth. Don't drink alcohol while taking this medication.  Tinidazole (Tindamax).