Lab shows guardia lamba. being treated with 2 doses of secnidal (2 tabs/500mg) reasonable treatment? suggestions? discomfort +diarrhea persists.

Underdosed?: According to Lexicomp, the dose should be 2 grams (4 tablets). Less might work also, but I would try to get the full 2 grams. Symptoms should resolve within 7 days. Avoid milk products until your diarrhea resolves because lactose intolerance can develop in patients with diarrhea. If your diarrhea persists 7 days or more, please see your doctor again. Keep yourself hydrated with pedialyte.

Single dose 2000mgm: Recommended dose for Giardia Lambia infection is a single dose of 2000 mgm.That is 4, 500mgm tablets taken together once only..It is also recommended to treat all cohabitants with the patient to avoid recurrences