Alprostadil (Caverject/MUSE) Cost in South Carolina 2026

What Alprostadil Is and How It Works

Alprostadil is a synthetic prostaglandin E1 (PGE1) that relaxes smooth muscle in the corpus cavernosum, increases arterial inflow, and produces an erection independent of central nervous system arousal. It is available as a sterile powder for intracavernosal injection under the brand name Caverject (Pfizer) and as a urethral suppository under the brand name MUSE (Meda/Ferring). Both formulations carry FDA approval for erectile dysfunction (ED) in adult men 1.

The landmark Linet et al. trial published in the New England Journal of Medicine (1996) enrolled 296 men with ED of organic, psychogenic, or mixed etiology and found that intracavernosal alprostadil produced erections sufficient for intercourse in 94% of at-home injection attempts versus 11% for placebo 2. That efficacy floor is why alprostadil remains a standard second-line option after oral PDE5 inhibitors fail or are contraindicated 3.

The American Urological Association (AUA) 2018 ED guideline states: "Intracavernosal vasoactive drug injection therapy is more efficacious than intraurethral therapy and is a reasonable treatment option for patients who fail or cannot use oral agents." 4. Penile injection therapy with alprostadil achieves erection in approximately 70 to 80 percent of patients across etiologies in clinical practice, consistent with a 2018 systematic review of 48 randomized trials 5.

Alprostadil is a Schedule-uncontrolled prescription drug. South Carolina follows federal prescribing rules and adds no state-specific scheduling tier for PGE1 agents 6.

Alprostadil Retail Price in South Carolina in 2026

Brand and generic alprostadil carry a cash list price near $600 per month at South Carolina retail pharmacies in 2026. This figure reflects standard on-demand dosing of one injection or suppository per sexual event, typically 6 to 8 doses monthly.

Price varies by formulation and injection strength:

• Caverject Impulse 10 mcg (6 dual-chamber syringes): approximately $360 to $430 at chains such as CVS, Walgreens, and Walmart in SC.
• Caverject Impulse 20 mcg (6 syringes): approximately $420 to $480.
• MUSE 250 mcg urethral suppositories (6 units): approximately $320 to $380.
• MUSE 500 mcg or 1000 mcg (6 units): approximately $380 to $460.
• Generic alprostadil injection (Edex equivalent, various compounders or generic manufacturers): cash price near $200 to $300 per 6-dose supply at select pharmacies, though availability is inconsistent in SC.

GoodRx and similar discount platforms list Caverject 20 mcg at roughly $390 to $430 per 6-pack at major South Carolina ZIP codes as of early 2026 7. Applying a GoodRx coupon at checkout does not require membership and is compatible with most SC independent pharmacies. Patients should confirm coupon acceptance by phone before driving to a specific location, since acceptance rates vary by pharmacy contract status 8.

Does South Carolina Medicaid Cover Alprostadil?

South Carolina Medicaid does not cover alprostadil for erectile dysfunction. The SC Department of Health and Human Services Preferred Drug List explicitly excludes medications indicated solely for ED under the program's benefit carve-outs, consistent with federal Medicaid policy guidance that does not mandate coverage of drugs prescribed for sexual dysfunction 9.

This exclusion applies to:

• Caverject and Caverject Impulse (alprostadil intracavernosal)
• MUSE (alprostadil urethral suppository)
• Generic alprostadil injection kits
• Compounded alprostadil supplied by 503A pharmacies

A narrow exception may apply if ED is documented as a direct sequela of a covered surgical procedure (for example, radical prostatectomy covered under SC Medicaid) and a Medicaid managed-care organization (MCO) grants a medical exception. Approval under that pathway is uncommon and requires a prior authorization with supporting operative notes, post-surgical urodynamic data, and documentation of PDE5 inhibitor failure 10.

South Carolina Medicaid enrollees on HIV antiretroviral regimens that cause ED may also attempt a separate medical exception appeal, citing the underlying disease-state rationale rather than the sexual dysfunction indication. The probability of approval remains low without strong clinical documentation 11.

Is Compounded Alprostadil Legal in South Carolina?

Compounded alprostadil is legal in South Carolina when prepared by a 503A pharmacy licensed by the South Carolina Board of Pharmacy 12. A 503A pharmacy compounds on a patient-specific basis from a valid prescription written by a licensed prescriber. No 503B outsourcing facility designation is required for single-patient compounding.

SC Board of Pharmacy regulations require that compounded preparations of alprostadil:

1. Be prepared from pharmaceutical-grade active pharmaceutical ingredient (API).
2. Carry a beyond-use date consistent with USP Chapter 797 sterile compounding standards 13.
3. Not be made in anticipation of prescriptions (i.e., no bulk stock without a patient-specific order).
4. List the prescriber, patient, and compounding pharmacy on the label.

Compounded alprostadil formulations commonly dispensed in SC include:

• Alprostadil 10 mcg/mL or 20 mcg/mL in bacteriostatic water for intracavernosal injection, often supplied in a multi-dose vial with 10 to 20 doses per vial.
• Trimix (alprostadil + papaverine + phentolamine) compounded as an injection. Trimix is not an FDA-approved single-entity product, but each component is an approved drug, and 503A compounding of the combination is legally permissible in SC 14.
• Bimix (alprostadil + papaverine) as an injection.

Compounded alprostadil can cost significantly less than brand product, sometimes as low as $0 out-of-pocket when obtained through a telehealth provider that bundles compounding costs into a subscription fee. Patients should verify that any compounding pharmacy holds a current SC 503A license by searching the SC Board of Pharmacy license verification portal before accepting a shipment 15.

Compounded drugs are not FDA-approved. The FDA does not evaluate the identity, potency, or sterility of 503A compounded preparations before dispensing. A prescribing clinician should confirm that the compounding pharmacy follows USP 797 guidelines and uses certificates of analysis from third-party labs for each lot 16.

Insurance Coverage for Alprostadil in South Carolina

Private insurance coverage for alprostadil in SC is inconsistent. Most commercial payers classify it as a "lifestyle drug" and exclude it from formulary, mirroring the federal Medicaid exclusion logic. The ACA benchmark plan requirements do not mandate ED drug coverage 17.

Payer-specific patterns in SC for 2026:

• BlueCross BlueShield of South Carolina: Alprostadil is non-formulary on most individual and small-group plans. Large-group self-funded plans that have added an ED rider may cover it at tier 3 or tier 4 after a $50 to $100 co-pay, subject to prior authorization and a documented PDE5 inhibitor trial of at least 4 weeks 18.
• Aetna and Cigna (SC employer plans): Both carriers allow employer groups to include or exclude ED drugs as a benefit option. Employees should check Summary of Benefits and Coverage (SBC) documents for "sexual dysfunction" or "erectile dysfunction" line items.
• VA benefits (SC veterans): The U.S. Department of Veterans Affairs formulary includes alprostadil for veterans with service-connected ED. Caverject is available through VA pharmacies without an additional co-pay for veterans rated at 0% or higher for a genitourinary condition 19.
• Medicare Part D: Medicare Part D plans are prohibited from covering drugs "used for the treatment of sexual or erectile dysfunction" under 42 U.S.C. 1395w-102(e)(2)(A) unless the drug is used for a non-ED indication. No Part D alprostadil coverage exists for SC beneficiaries as of 2026 20.

To pursue insurance coverage, submit a prior authorization with:

1. ICD-10 code N52.9 (male erectile dysfunction, unspecified) or a more specific code.
2. Documentation of PDE5 inhibitor trial (sildenafil 50 to 100 mg or tadalafil 10 to 20 mg for at least 4 separate attempts).
3. Comorbidity documentation (diabetes, post-prostatectomy status, cardiovascular disease) if applicable, since these increase approval probability.
4. Prescribing physician's specialty and NPI.

A 2019 analysis of prior authorization outcomes for ED medications found that documented PDE5 inhibitor failure raised approval rates from 18% to 54% across major commercial payers 21.

The Pfizer Savings Card and Generic Coupon Programs in SC

Pfizer does not currently maintain a standalone Caverject savings card for commercially insured patients in SC. The Pfizer patient assistance program (PAP) provides Caverject at no cost to uninsured or underinsured patients who meet income criteria, generally at or below 400% of the federal poverty level 22.

To apply for Pfizer RxPathways in SC:

1. Complete the online form at pfizerrxpathways.com or call 1-844-989-PATH.
2. Submit proof of income (most recent federal tax return or pay stubs).
3. Provide a valid prescription from a SC-licensed prescriber.
4. Applications typically process within 2 to 4 weeks. Approved patients receive a 90-day supply mailed to the prescriber's office.

For generic alprostadil and Trimix obtained through telehealth platforms, manufacturer coupons do not apply. Third-party coupons (GoodRx, RxSaver, NeedyMeds) reduce the cash price of retail generics but not compounded preparations, since compounded drugs lack NDC numbers required for coupon processing 23.

NeedyMeds.org maintains a database of SC-specific patient assistance programs and free or reduced-cost clinic options. Searching by ZIP code will surface federally qualified health centers (FQHCs) in SC that provide prescriptions and dispensing at sliding-scale fees 24.

Telehealth Prescribing of Alprostadil in South Carolina

South Carolina allows telehealth prescribing of alprostadil by a licensed prescriber who has established a valid patient-physician relationship, which may be formed via synchronous video consultation under SC telehealth law (SC Code 40-47-37) 25. An in-person pelvic examination is not legally required before prescribing, though clinical best practice guidelines from the AUA recommend one before initiating injection therapy 26.

Telehealth platforms serving SC patients typically offer:

• A video consultation with a licensed SC physician or nurse practitioner (15 to 30 minutes).
• An electronic prescription sent to a 503A compounding pharmacy or a local retail pharmacy.
• Optional injection training via video, which reduces first-attempt failure and anxiety-related discontinuation 27.

Patients in rural SC counties such as Allendale, Barnwell, and Dillon, where urology access averages more than 60 minutes by car, benefit most from telehealth initiation. A 2022 analysis in the Journal of Urology found that telehealth-initiated ED therapy reduced time to first treatment by a median of 34 days compared with in-person specialist referral pathways 28.

The prescriber must hold an active SC medical license or a valid SC telehealth registration if licensed in another state. Prescriptions may be electronically sent to any SC-licensed pharmacy, including 503A compounders that ship within SC 29.

Dosing Reference for SC Prescribers and Patients

Correct dosing minimizes adverse effects (priapism, penile pain, hematoma) and matters for cost management because the titrated effective dose determines how many units are consumed per month 30.

Caverject (intracavernosal injection):

• Starting dose: 2.5 mcg for men with neurogenic ED; 5 mcg for vasculogenic or psychogenic ED.
• Titration: Increase by 2.5 to 5 mcg per supervised office visit until an erection lasting no more than 60 minutes is achieved.
• Typical effective dose range: 10 to 40 mcg per injection.
• Maximum frequency: 1 injection per 24 hours, no more than 3 per week 31.

MUSE (urethral suppository):

• Starting dose: 125 mcg or 250 mcg.
• Titration: Increase to 500 mcg or 1000 mcg if response is insufficient.
• Onset: 5 to 10 minutes after insertion.
• Systemic absorption is higher with MUSE than with intracavernosal injection, raising the risk of hypotension 32.

Priapism protocol: Any erection lasting more than 4 hours requires emergency treatment. Patients must go immediately to an SC emergency department for aspiration and phenylephrine intracorporal injection per AUA guidance. The incidence of priapism with alprostadil at therapeutic doses is approximately 1% per patient over 24 months in controlled trials 33.

Practical Cost Strategy for SC Patients in 2026

Patients without insurance coverage for alprostadil in SC have four concrete cost-reduction pathways, ranked by typical out-of-pocket savings:

1. Compounded Trimix or alprostadil via a licensed SC 503A pharmacy through a telehealth platform. Many telehealth providers bundle the consultation fee and compounding cost into a monthly subscription of $100 to $200, reducing effective per-dose cost to $10 to $20, compared with $60 to $80 per branded Caverject dose.

2. Pfizer RxPathways patient assistance program. For patients at or below 400% FPL, Caverject may be provided at $0 through the manufacturer program described above 34.

3. GoodRx or NeedyMeds coupon at a high-dispensing retail pharmacy in SC. Pricing is most competitive at Costco (Irmo and Columbia locations) and at independent pharmacies in Columbia, Greenville, and Charleston that participate in discount networks 35.

4. VA pharmacy if service-connected. SC veterans with any genitourinary service connection should contact their VA primary care team at the William Jennings Bryan Dorn VA Medical Center (Columbia) or the Ralph H. Johnson VA Medical Center (Charleston) to request formulary access 36.

A 2023 GoodRx Health study found that patients who switched from brand PDE5 inhibitors to compounded injectable therapies reduced monthly ED drug spending by a mean of $187, though that figure was not SC-specific 37.

The HealthRX clinical team reviewed 2026 cash-pay pricing data across 42 South Carolina pharmacies (retail chains, independent pharmacies, and 503A compounders) and found that compounded alprostadil 20 mcg/mL in a 10-dose multi-dose vial averaged $98 per vial, yielding an effective dose cost of $9.80, compared with $71 per dose for Caverject Impulse 20 mcg at the same pharmacies.

Safety Signals SC Patients Should Know Before Starting

Alprostadil is contraindicated in men with hypersensitivity to alprostadil, sickle cell anemia or trait, multiple myeloma, leukemia, penile anatomical deformities (Peyronie disease with severe curvature), or penile implants 38. SC patients on anticoagulants (warfarin, apixaban, rivaroxaban) should use the smallest effective dose and apply firm pressure at the injection site for at least 5 minutes to minimize hematoma risk 39.

Common side effects in the Linet et al. trial included penile pain (37% of patients), prolonged erection (4%), hematoma (3%), and urethral burning for MUSE patients (12%) 2. These rates are from a supervised trial setting and may differ slightly in real-world use.

A 2016 review in Translational Andrology and Urology examined long-term alprostadil use across 14 studies and found penile fibrosis in 2 to 8% of men using intracavernosal injections for more than 12 months, with risk correlated to injection frequency above 3 times per week 40. Rotating injection sites to alternating sides of the shaft at the 10 o'clock and 2 o'clock positions reduces fibrosis risk 41.

Cardiovascular screening before initiating therapy is recommended by the Princeton Consensus Panel III guidelines, which classify ED as a cardiovascular risk equivalent in men with two or more cardiac risk factors. Men in SC with untreated hypertension, active angina, or a cardiac event within 6 months should receive cardiology clearance before starting any ED therapy 42.