If you suspect an adverse reaction to tinidazole, alternative treatments are available. For bacterial stomach infections, generic azithromycin or rifaximin can be used instead of ciprofloxacin. If a parasitic infection is suspected and we must avoid tinidazole, nitazoxanide is an effective alternative. Since broad-spectrum antibiotics can disrupt gut flora, leading to yeast overgrowth and temporary digestive sensitivities that may feel like food allergies, your doctor might also suggest a probiotic or an antifungal like fluconazole to treat the yeast infection. Please consult your doctor to determine the exact cause of your infection and safely transition to a suitable, well-tolerated alternative.