Topic
drug interactions
6 guides about drug interactions from our pharmacy team.
Sildenafil Drug Interactions: Medicines and Substances to Watch
A practical overview of the medicines and substances that can interact with sildenafil, and why telling your doctor about everything you take matters.
Read guideTadalafil Drug Interactions: What to Avoid and What Needs Caution
Because tadalafil stays in the body for a long time, its interactions deserve special attention — here is what to avoid and what to flag to your doctor.
Read guideED Medication and Nitrates: Why This Combination Is Dangerous
Mixing ED tablets with nitrates or poppers can cause a life-threatening drop in blood pressure — here is what you need to know to stay safe.
Read guideED Medication and Alpha-Blockers: Managing the Combination Safely
Alpha-blockers and ED tablets can both lower blood pressure, so combining them needs care — here is how the interaction works and how it is managed.
Read guideGrapefruit and ED Medication: Does It Really Matter?
Grapefruit can interfere with how ED tablets are processed by the body — here is what the interaction means and how to play it safe.
Read guideUnderstanding Drug Interactions
A clear explanation of how medicines can interact with each other, with food and with supplements, and how to stay safe.
Read guide