A member asked:

Is stomachache and loose stools normal when using penicilin? how soon will it stop when not using penicilin anymore?

A doctor has provided 1 answer
Dr. Martin Fried answered

Specializes in Nutrition

Colon flora change: Antibiotics kill off the healthy bacteria in the colon and can cause loose stools and cramping. Replacing the flora with natural bacteria such as acidophilus and bifidobacteria probiotics can help reduce the symptoms.

Answered 12/3/2013

4.7k views

Thank

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What might cause stomachaches and clay-colored stools?

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