Addyi with antacids and acid blockers
Antacids and acid-blocking medications (PPIs like omeprazole, H2 blockers like ranitidine or famotidine) are widely used and can subtly affect the absorption of medications taken alongside them. For Addyi (Flibanserin) at 100mg, the impact depends on how Flibanserin is absorbed and whether gastric pH plays a role.
How antacids affect Addyi
Antacids work locally to neutralise gastric acid; PPIs and H2 blockers reduce acid secretion over hours. Some medications need an acidic stomach for proper dissolution and absorption — for these, co-administration with PPIs reduces effective dose. Other medications absorb fine regardless of pH. Whether Flibanserin is pH-sensitive is in the prescribing information. Sexual desire is modulated by complex central nervous system pathways involving serotonin (generally inhibitory) and dopamine and norepinephrine (generally excitatory).
Practical guidance
According to general pharmacy practice, separating antacid doses from Addyi by 2 hours avoids most direct binding interactions. PPIs and H2 blockers, taken on their own schedule, do not need timing separation but can shift Flibanserin absorption over weeks of co-use. The pharmacist confirms whether Addyi at 100mg is affected.
Frequently asked questions
Can I take antacids with Addyi? ▾
Yes for most users, but separating the doses by 2 hours minimises any direct interaction with Flibanserin at 100mg. Some medications bind to antacid components and absorb less effectively if taken simultaneously.
Will my PPI affect Addyi? ▾
For most Women's Sexual Health medications, no clinically meaningful interaction. For pH-sensitive active ingredients, chronic PPI use can reduce absorption of Addyi; the prescriber may consider an alternative or a dose adjustment if this applies to Flibanserin.
More on Addyi
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