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HealthVetted
Head-to-head · 2026

BlueChewvsAddyi (flibanserin)

Top pick

BlueChew

Sildenafil / Tadalafil

Score8.1/10

Addyi (flibanserin)

Flibanserin

Score7.0/10
Updated

Side-by-side

#ProductStarting priceScoreActions
1BlueChewBest ·$20/moTop ·8.1See offer →
2Addyi (flibanserin)$149/mo7.0See offer →
Score comparison

Side-by-side scoring breakdown

BlueChewAddyi (flibanserin)
Effectiveness
0 — 10
BlueChew
8.0
Addyi (flibanserin)
6.5
Safety
0 — 10
BlueChew
7.5
Addyi (flibanserin)
6.0
Value
0 — 10
BlueChew
8.0
Addyi (flibanserin)
7.0
Accessibility
0 — 10
BlueChew
9.0
Addyi (flibanserin)
7.5
User experience
0 — 10
BlueChew
8.5
Addyi (flibanserin)
6.5
Trust
0 — 10
BlueChew
7.5
Addyi (flibanserin)
8.5

How they work

BlueChew

BlueChew dispenses chewable tablets of sildenafil or tadalafil (and, on some plans, vardenafil), all phosphodiesterase type-5 (PDE5) inhibitors — the same drug class as Viagra and Cialis. During sexual arousal, the body releases nitric oxide, which raises cyclic GMP (cGMP), relaxing the smooth muscle in penile blood vessels so blood flows in and produces an erection. PDE5 normally breaks cGMP down. By blocking PDE5, sildenafil and tadalafil keep cGMP levels higher for longer, improving the ability to get and keep an erection. Crucially, the medication only works with sexual stimulation — it does not cause spontaneous erections. The chewable format is simply an alternative delivery form; the underlying pharmacology is the same as standard swallowed tablets.

Addyi (flibanserin)

Flibanserin works in the brain, not the bloodstream to the genitals. As a 5-HT1A agonist and 5-HT2A antagonist, it is thought to nudge dopamine and norepinephrine up and serotonin transiently down in regions linked to sexual motivation, aiming to rebalance the excitatory and inhibitory signals behind desire. Its precise mechanism in HSDD remains incompletely understood.

Effectiveness

BlueChew

The active ingredients have robust evidence. A BMC Urology meta-analysis of 10 randomized controlled trials (2,123 men on sildenafil vs 1,131 on placebo; Moore, Edwards & McQuay, 2002) found that with dose optimization, roughly 48% of men on sildenafil achieved at least 60% successful intercourse attempts versus 11% on placebo (number needed to treat about 2.7), and 79% reported globally improved erections versus 21% on placebo (number needed to treat as low as 1.7 for global improvement). Tadalafil shows comparable efficacy in indirect meta-analyses, with a longer duration of action. Important caveat: these trials studied standard FDA-approved tablets, not BlueChew's specific compounded chewables, which have not been independently tested for bioequivalence in published trials. The reasonable expectation is that the same active ingredient at a comparable dose performs similarly, but BlueChew has not published its own efficacy data.

Addyi (flibanserin)

Approval rested on three 24-week randomized, double-blind, placebo-controlled trials in premenopausal women with HSDD. Around 46% of women on 100 mg/day reported their condition improved versus about 30% on placebo, and measures of satisfying sexual events and desire rose modestly. The effect is statistically real but clinically modest, which is why candidate selection and counseling matter.

Side effects

BlueChew

Common, usually mild and temporary side effects of sildenafil and tadalafil include headache, facial flushing, nasal congestion, indigestion or heartburn, dizziness, and back or muscle aches (more typical with tadalafil). In dose-optimized sildenafil trials, treatment-related adverse events occurred in roughly 30% of men versus about 11% on placebo. Sildenafil can cause temporary bluish-tinged or light-sensitive vision. Serious but rare effects warrant immediate medical care: priapism (a painful erection lasting more than 4 hours, which can permanently damage tissue), sudden vision loss in one or both eyes (NAION), and sudden hearing loss or ringing. The most dangerous scenario is combining these drugs with nitrates, which can trigger a catastrophic blood-pressure drop. Seek emergency help for chest pain during sex, fainting, or any of the serious symptoms above.

Addyi (flibanserin)

The most common effects are dizziness, sleepiness, nausea, fatigue, insomnia, and dry mouth, which is why it is taken at bedtime. The boxed warning is serious: alcohol, liver impairment, or interacting drugs can cause dangerously low blood pressure and fainting. Follow the alcohol-timing guidance exactly. This is educational information, not medical advice; individual results vary.

Cost & value

BlueChew

As of 2026, BlueChew subscriptions in the US generally run from about $20-$25/month for the smallest packs up to roughly $120-$135/month for larger or higher-strength plans, with per-chew costs commonly around $2-$4.50 depending on the medication and quantity — substantially cheaper than brand-name Viagra or Cialis. The monthly price bundles the medication, the online consultation, and the prescription, with discreet shipping. BlueChew has historically offered a free first-month trial on some plans (you pay only shipping) and frequently runs promo codes; quarterly or longer billing lowers the per-dose cost. It is a cash-pay telehealth service, so it does not bill insurance — but generic sildenafil and tadalafil are inexpensive and often covered if you instead get a prescription through your own doctor and use a retail or discount pharmacy, which can be cheaper for heavy users. Prices and promotions change frequently; confirm current figures directly with BlueChew.

Addyi (flibanserin)

Retail cash prices can be very high, roughly $800-$1,170 for a month, but the PhilRx direct-to-patient program lists a guaranteed cash price near $149/month with free delivery, and many commercially insured patients pay under $100 and sometimes around $20/month. A telehealth visit may add a separate fee.

Who it's for

BlueChew

BlueChew is intended for adult men (18+) with erectile dysfunction who can safely use PDE5 inhibitors, confirmed through an online medical questionnaire reviewed by a licensed US provider. It is not appropriate for everyone. Absolute contraindication: anyone taking nitrates (such as nitroglycerin or isosorbide) or the recreational inhalant 'poppers' (amyl/butyl nitrite) — the combination can cause sudden, life-threatening drops in blood pressure. Men should also avoid it, or use it only under direct physician supervision, if they have had a recent heart attack or stroke, unstable angina, uncontrolled high or low blood pressure, severe heart failure, certain inherited retinal diseases (such as retinitis pigmentosa), or a prior episode of NAION (sudden vision loss). Caution applies with alpha-blockers, some blood-pressure medications, and CYP3A4 inhibitors. BlueChew is for men only; it is not a treatment for women and is not a contraceptive. Disclose all your medications and conditions during the consult, and check with your own doctor if you have any cardiovascular history.

Addyi (flibanserin)

Premenopausal adult women with acquired, generalized HSDD that is not better explained by another condition, relationship factors, or medication effects. It is contraindicated with alcohol close in time, with hepatic impairment, and with moderate-to-strong CYP3A4 inhibitors. A clinician must evaluate suitability.

BlueChew
+Uses the same proven active ingredients (sildenafil, tadalafil) as Viagra and Cialis, with the active drugs backed by decades of clinical trials showing strong efficacy
+Fully online process — questionnaire, licensed US prescriber review, and discreet home delivery with no in-person appointment or pharmacy trip
+Lower cost than brand-name ED drugs, with per-chew pricing often around $2-$4.50 and a free first-month trial available on some plans
+Chewable format is easy to take discreetly without water, and tadalafil's up-to-36-hour window allows more spontaneity
+Bundled price includes the consultation and prescription with no separate clinic or doctor fees
−The chewable tablets are compounded and NOT FDA-approved as finished products; in September 2025 the FDA issued BlueChew's parent company a warning letter for marketing that implied the compounded chewables were equivalent to FDA-approved medications like Viagra and Cialis
−BlueChew has not published bioequivalence or efficacy data for its specific chewable formulations, so consistency relative to standard FDA-approved tablets isn't independently verified
−Cash-pay subscription model doesn't use insurance, and committed or heavy users may pay less by getting generic sildenafil or tadalafil through their own doctor and a discount pharmacy
−The online questionnaire cannot replace a hands-on cardiac exam; men with undiagnosed heart disease may not be fully screened before using a drug that affects the cardiovascular system
Addyi (flibanserin)
+The first and one of few FDA-approved treatments specifically for low desire (HSDD) in premenopausal women
+Targets desire centrally rather than just physical arousal
+PhilRx program offers a guaranteed cash price near $149/month with free delivery, far below retail
+Accessible via telehealth without an in-person specialist visit
−Boxed warning: combining with alcohol, liver impairment, or certain drugs can cause dangerous low blood pressure and fainting
−Benefit over placebo in trials is modest, with roughly 46% reporting improvement versus 30% on placebo
−Must be taken daily at bedtime and may take weeks to show effect
−Not for postmenopausal women or for desire problems caused by relationship or medication factors

Bottom line

Addyi (flibanserin): Addyi is the right tool when the core problem is genuinely low sexual desire in a premenopausal woman, but it demands daily dosing, careful alcohol timing, and realistic expectations about a modest benefit. On balance, BlueChew edges ahead in our scoring, but the right choice depends on your situation.

Conditions these treat

Sources behind our BlueChew and Addyi (flibanserin) reviews

  1. Sildenafil tablet — Full Prescribing Information (FDA label) — DailyMed, U.S. National Library of Medicine (2023)
  2. Tadalafil tablet, film coated — Full Prescribing Information (FDA label) — DailyMed, U.S. National Library of Medicine (2023)
  3. CIALIS (tadalafil) tablet, film coated — Full Prescribing Information — DailyMed, U.S. National Library of Medicine (Eli Lilly) (2022)
  4. Sildenafil: MedlinePlus Drug Information — MedlinePlus, U.S. National Library of Medicine (NIH) (2024)
  5. Sildenafil — StatPearls — StatPearls, NCBI Bookshelf (NIH) (2024)
  6. Tadalafil — StatPearls — StatPearls, NCBI Bookshelf (NIH) (2024)
  7. Phosphodiesterase Inhibitors — StatPearls — StatPearls, NCBI Bookshelf (NIH) (2023)
  8. Oral Sildenafil in the Treatment of Erectile Dysfunction — New England Journal of Medicine (1998)
  9. Efficacy and safety of tadalafil for the treatment of erectile dysfunction: results of integrated analyses — The Journal of Urology (2002)
  10. Comparative effectiveness and safety of oral phosphodiesterase type 5 inhibitors for erectile dysfunction: a systematic review and network meta-analysis — European Urology (2013)
  11. The Effect of Phosphodiesterase-type 5 Inhibitors on Erectile Function: An Overview of Systematic Reviews — Frontiers in Pharmacology (2021)
  12. Efficacy and safety of phosphodiesterase type 5 inhibitors in treating erectile dysfunction after bilateral nerve-sparing radical prostatectomy — Andrologia / PubMed (2015)
  13. Phosphodiesterase-5 inhibitors for erectile dysfunction in patients with diabetes mellitus: A systematic review and meta-analysis of randomized controlled trials — Medicine (Baltimore) / PMC (2015)
  14. Erectile Dysfunction: AUA Guideline — The Journal of Urology (American Urological Association) (2018)
  15. Erectile Dysfunction (ED) Guideline — American Urological Association (2018)
  16. EAU Guidelines on Sexual and Reproductive Health — Management of Erectile Dysfunction — European Association of Urology (Uroweb) (2024)
  17. Princeton IV consensus guidelines: PDE5 inhibitors and cardiac health — The Journal of Sexual Medicine (2024)
  18. Cardiovascular Effects of the 3 Phosphodiesterase-5 Inhibitors Approved for the Treatment of Erectile Dysfunction — Circulation (American Heart Association) (2004)
  19. How Does BlueChew Work? — BlueChew (manufacturer clinical content) (2024)
  20. BlueChew Sildenafil — Product and Active Ingredient Information — BlueChew (manufacturer product page) (2024)
  21. Label: Addyi (flibanserin) tablet, film coated - DailyMed — DailyMed (NIH/NLM) (2025)
  22. ADDYI (flibanserin) tablets - FDA Approved Label — U.S. FDA (2015)
  23. Flibanserin - StatPearls — NCBI Bookshelf (NIH) (2023)
  24. Flibanserin: Approval of a controversial drug for a controversial disorder — PMC (NIH) (2015)
  25. PHIL and Sprout Expand Direct-to-Patient Access for Addyi — PR Newswire (2026)

Editorial comparison, not medical advice. Discuss options with a qualified clinician. Individual results vary.