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What to do for my 3.5-month-old baby with persistent watery diarrhea for 12 days after taking Flagyl?
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Pediatric Medicine
Question #29483
45 days ago
97

What to do for my 3.5-month-old baby with persistent watery diarrhea for 12 days after taking Flagyl? - #29483

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Medical Summary (Since April 1st) • Patient: 3.5-month-old infant. • Primary Symptom: Persistent watery diarrhea (3+ times daily) lasting 12 days. • Current Status: Baby is alert, sleeping comfortably, and taking milk/ORS well. • Medication History: • Cefspan (Cefixime): Taken for 3 days; no improvement in diarrhea. • Enterogermina (Probiotic): Taken once daily (given at 11:00 PM tonight). • Flagyl (Metronidazole): Started tonight at 11:00 PM. • Recent Dosing Error: • Prescribed: Flagyl 100mg/5ml (3 ml twice daily). • Administered: Flagyl 200mg/5ml (3 ml once). • Result: The baby received 120 mg of Metronidazole instead of the intended 60 mg.

How many times a day is your baby having diarrhea?:

- 3-4 times

Has your baby shown any signs of dehydration?:

- Mild signs (dry mouth, less urine)

What is your baby's current feeding pattern?:

- Breastfeeding only

Has your baby developed any other symptoms?:

- No other symptoms

How would you describe your baby's energy level?:

- Less active than usual

Have you noticed any changes in your baby's appetite?:

- Eating normally

Did you notice any changes after starting Flagyl?:

- No change
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Doctors' responses

It’s concerning to hear about your baby’s persistent diarrhea. Given these symptoms and the medication history, there are a few important steps to consider. Firstly, while the over-administration of Metronidazole is a concern, the dose given (120 mg) is unlikely to cause harm in the short term, but do monitor for unusual behavior or symptoms like vomiting, lethargy, or irritability, and contact a health professional if they occur. It’s crucial to address the dehydration risk that prolonged diarrhea poses, so continue with oral rehydration solutions (ORS) as you’ve been doing. To adjust the Flagyl dosing going forward, ensure you’re using the correct concentration (100mg/5ml) and give 3 ml twice daily as prescribed now.

Persistent diarrhea in an infant this young deserves thorough evaluation to understand its underlying cause. While you’ve started Flagyl and a probiotic, if improvement isn’t seen soon, or if symptoms worsen (i.e. blood in stools, fever, diminishment of oral intake), it’s important to have your baby re-evaluated by a pediatrician. The presence of watery diarrhea for this long in infants could indicate various issues ranging from a viral infection to an intolerance or allergy concern, necessitating different treatment strategies. Make sure you document any changes observed in symptoms or overall behavior to provide the doctor with the fullest picture possible. Keep an eye on the baby’s daily activities and feeding, as any notable shifts can provide critical insight. Also, look into ensuring a clean, hygienic feeding environment if bottle-fed to minimize contamination risks. Maintain regular follow-ups with your healthcare provider as needed to track your baby’s progress.

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Dr. Bharat Joshi
I’m a periodontist and academician with a strong clinical and teaching background. Over the last 4 years and 8 months, I’ve been actively involved in dental education, guiding students at multiple levels including dental hygienist, BDS, and MDS programs. Currently, I serve as a Reader at MMCDSR in Ambala, Haryana—a role that allows me to merge my academic passion with hands-on experience. Clinically, I’ve been practicing dentistry for the past 12 years. From routine procedures like scaling and root planing to more advanced cases involving grafts, biopsies, and implant surgeries. Honestly, I still find joy in doing a simple RCT when it’s needed. It’s not just about the procedure but making sure the patient feels comfortable and safe. Academically, I have 26 research publications to my credit. I’m on the editorial boards of the Archives of Dental Research and Journal of Dental Research and Oral Health, and I’ve spent a lot of time reviewing manuscripts—from case reports to meta-analyses and even book reviews. I was honored to receive the “Best Editor” award by Innovative Publications, and Athena Publications recognized me as an “excellent reviewer,” which honestly came as a bit of a surprise! In 2025, I had the opportunity to present a guest lecture in Italy on traumatic oral lesions. Sharing my work and learning from peers globally has been incredibly fulfilling. Outside academics and clinics, I’ve also worked in the pharmaceutical sector as a Drug Safety Associate for about 3 years, focusing on pharmacovigilance. That role really sharpened my attention to detail and deepened my understanding of drug interactions and adverse effects. My goal is to keep learning, and give every patient and student my absolute best.
43 days ago
5

Hello dear See overdose of medication do result in Complications like Water loss Dehydration Electrolytes loss Weakness Poor recovery As per my clinical experience There is need to immediately stop meyrogyl Ot replacment must be fine with Ofloxacin tz But immediately consult pediatrician in person for better clarity Regards

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