Actually, you might try keeping him on the metronadizole for a longer period of time. Many parasitical problems such as giardia or camphylobacter are resistant to antibiotic therapy and can require as much as 3 weeks of constant treatment to completely irradicate. If you are doing 10-14 day treatments, talk to your vet about a long term program for at LEAST 21 days to see if this takes care of the problem permanently. Given the fact he has normal stool while on the medication, it leads on to suspect that the treatment is correct.
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Lori McLaughlin
Your veterinarian should ALWAYS be consulted first and foremost when your pet's welfare is at stake.
