Will taking medicine without eating harm the stomach?

Oct 13, 2022 Source: Cainiu Health
Dr. Zhao Haiming
Introduction
Generally, taking blood sugar-lowering or blood pressure-lowering medications on an empty stomach does not harm the stomach, as these medications do not irritate the gastrointestinal tract when taken in a fasting state. However, if the medication taken causes irritation to the gastrointestinal mucosa, long-term use may damage the stomach—for example, certain antimicrobial drugs.

Taking medicine without eating generally refers to taking medication on an empty stomach. Whether taking medicine on an empty stomach harms the stomach depends on the type of medication.

1. No harm

If a patient takes blood sugar-lowering or blood pressure-lowering medications, such as nifedipine or valsartan, on an empty stomach, it usually does not harm the stomach. These medications typically do not irritate the gastrointestinal tract when taken before meals. Moreover, taking them on an empty stomach may enhance drug absorption and thus benefit disease recovery.

2. May cause harm

If medications that may irritate the gastrointestinal mucosa are taken on an empty stomach, long-term use could potentially damage the stomach. Examples include certain antimicrobial agents such as itraconazole and cefuroxime axetil.

In daily life, patients must strictly follow medical advice when taking medications, carefully choosing the appropriate timing and dosage. This helps prevent adverse effects caused by blind or improper medication use, which might otherwise interfere with recovery.