Drug interactions
Nelfinavir + Nizatidine
Severity: Moderate
Nelfinavir and Nizatidine: moderate interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Nelfinavir absorption depends on an acidic gastric environment, and acid suppression may reduce its levels. Lower exposure could risk reduced antiviral activity.
What this interaction means in plain words
Nelfinavir and Nizatidine can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Nelfinavir belongs to Anti Virals; Nizatidine belongs to Gastrointestinal Tract.
Why it happens
Increased gastric pH may reduce nelfinavir absorption.
What to do
Monitor HIV viral load during combined use. Consider avoiding routine acid suppression if virologic control worsens.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Nizatidine
- Atazanavir + Nizatidine Major
- Dasatinib + Nizatidine Major
- Erlotinib + Nizatidine Major
- Itraconazole + Nizatidine Major
- Ketoconazole + Nizatidine Major
- Nizatidine + Pazopanib Major
Other interactions of Nelfinavir
- Alfuzosin + Nelfinavir Contraindicated
- Avanafil + Nelfinavir Contraindicated
- Dronedarone + Nelfinavir Contraindicated
- Eletriptan + Nelfinavir Contraindicated
- Ergotamine + Nelfinavir Contraindicated
- Flibanserin + Nelfinavir Contraindicated
Frequently asked questions
Can I take Nelfinavir with Nizatidine?
MediHelp rates the interaction as moderate. Nelfinavir and Nizatidine can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Nelfinavir absorption depends on an acidic gastric environment, and acid suppression may reduce its levels. Lower exposure could risk reduced antiviral activity.
How serious is the interaction between Nelfinavir and Nizatidine?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor HIV viral load during combined use. Consider avoiding routine acid suppression if virologic control worsens.
What other medicines interact with Nizatidine?
MediHelp also lists interactions of Nizatidine with, for example, Atazanavir, Dasatinib, Erlotinib. The full list is on the Nizatidine page.
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