

What is Addyi? Learn about this FDA-approved HSDD treatment, including uses, dosage, who it's for, cost, and what you need to know before starting in 2026.
Addyi (Flibanserin) is a prescription medication approved by the FDA to treat hypoactive sexual desire disorder (HSDD) in women under 65. It's a once-daily pill taken at bedtime that works by adjusting serotonin, dopamine, and norepinephrine levels in the brain to help restore sexual desire.
Sometimes called "the female Viagra" — though it works completely differently — Addyi was first approved in 2015 and remains the only daily oral treatment for HSDD. Here's everything you need to know about it heading into 2026.
Addyi is the brand name for Flibanserin, a medication classified as a multifunctional serotonin agonist and antagonist (MSAA). It's manufactured by Sprout Pharmaceuticals.
Unlike Viagra, which increases blood flow to treat erectile dysfunction, Addyi works in the brain. It acts on serotonin receptors (specifically as a 5-HT1A agonist and 5-HT2A antagonist) to increase dopamine and norepinephrine while reducing serotonin in the prefrontal cortex. This shift in brain chemistry is what helps restore desire over time.
For a plain-English explanation of the science, see our guide on how Addyi works.
Addyi is FDA-approved for one specific condition: acquired, generalized hypoactive sexual desire disorder (HSDD) in women under 65.
Let's break that down:
Addyi is not approved for:
Addyi comes as a 100 mg pink, oval, film-coated tablet. Here's how to take it:
Taking Addyi at bedtime is a safety requirement, not a recommendation. The medication can cause dizziness, low blood pressure, and sleepiness — all of which are less dangerous when you're in bed. For more on this, read about Addyi's side effects.
Addyi is not safe for everyone. The following groups should not take it:
This is where it gets complicated — and expensive.
For every available savings option, see our comprehensive guide on how to save money on Addyi.
Addyi isn't stocked at most retail pharmacies. The primary way to get it is through PhilRx mail-order pharmacy. Some retail and specialty pharmacies do carry it, but availability is inconsistent.
Use Medfinder to check which pharmacies near you have Addyi in stock. For tips on the broader availability picture, read why Addyi is so hard to find.
Addyi fills an important gap as the only daily oral treatment for HSDD. It's not a magic pill — it works gradually over weeks, it comes with real safety restrictions around alcohol and drug interactions, and it's expensive without savings programs.
But for women who have HSDD and meet the criteria, it can make a meaningful difference. Talk to your doctor about whether it's right for you. If you need help finding a prescriber or locating it at a pharmacy, we have guides for that too.
You focus on staying healthy. We'll handle the rest.
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