Metronidazole is the medicine of choice for most people with giardiasis. Other treatments include furazolidone for children and paromomycin for pregnant women.
People taking metronidazole should avoid alcohol. Some side effects are as follows:
Giardiasis usually responds readily to the medicine and recovery is complete.
The provider may request a stool sample to be sure the parasite has been eliminated. Any new or worsening symptoms should be reported to the healthcare provider.