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    Sexual Health · Compounded
    Rated 4.8 by RWell patients

    TriMix Injections

    TriMix is a triple-compound injectable medication that delivers the most reliable results for ED — prescribed online by California-licensed clinicians.

    Starting at $158/mo

    • Prescribed 100% online — no waiting rooms
    • California-licensed clinicians
    • Free 2-day shipping, discreetly packaged
    • Transparent pricing with no hidden fees

    Prescription products require an online consultation with a licensed clinician who will determine if a prescription is appropriate. Compounded medications are not FDA-approved or evaluated for safety, efficacy, or quality.

    Serving CaliforniaCompounded TriMix injection vial prescribed online for California patients
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    Couple together after starting TriMix treatment

    How does TriMix work?

    • Combines three vasoactive medications — alprostadil, papaverine, and phentolamine — in one small injection.
    • Relaxes smooth muscle and dramatically increases blood flow, producing a reliable erection within 5–20 minutes.
    • Acts locally rather than through the bloodstream, so it works independently of arousal.
    • Effective even when oral PDE5 inhibitors haven't worked — including for men with diabetes, vascular disease, or a history of prostatectomy.

    Formulation

    Trimix T-105: Papaverine 30mg / Phentolamine Mesylate 1mg / Prostaglandin E1 10mcg. Each 5 mL vial contains up to 10 doses at the maximum prescribed dose of 0.50 mL.

    4 easy steps to get started

    1. 1

      Complete a short online intake

      Answer a secure health questionnaire about your history and goals — about 5–10 minutes.

    2. 2

      A California-licensed clinician reviews

      Your intake is reviewed by a provider licensed in California, typically in under 4 hours.

    3. 3

      Compounded by a licensed pharmacy

      If appropriate, your compounded TriMix prescription is sent to our partner pharmacy.

    4. 4

      Shipped discreetly to your door

      Your medication ships with UPS 2nd Day Air, directly to your California address.

    Man reviewing his online telehealth visit at home

    Results that speak for themselves

    90%+

    Reported success rate

    TriMix is widely considered the most effective ED treatment available — even when oral medications have failed.¹

    min

    Rapid onset

    Direct injection means the medication goes exactly where it needs to go — results typically within 10 minutes.

    3

    Compounds in one injection

    Alprostadil, papaverine, and phentolamine — three vasoactive medications working together for maximum reliability.

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    Why choose RWell?

    California-licensed clinicians

    Every prescription is reviewed by a provider licensed to practice in California.

    Compounded by licensed pharmacies

    Prepared by US-based compounding pharmacies to your prescribed strength.

    Discreet, expedited shipping

    Ships via UPS 2nd Day Air statewide — Los Angeles, San Diego, San Francisco, San Jose, Sacramento, and beyond.

    Patient on a video call with a US-licensed RWell clinician

    Simple, transparent pricing

    No membership fees. No hidden charges. Auto-refills – cancel at least 48-hours prior to next refill.

    Every RWell Plan Includes:

    • No cost consultation
    • Free UPS 2nd Day Air
    • No membership or hidden fees
    • Unlimited messaging with your care team
    LegitScript Certified sealLegitScript Certified

    Monthly – 5 mL

    $160

    first month

    Refills at $200

    Auto-refills – cancel at least 48-hours prior to next refill

    Get Started

    Quarterly – 15 mL

    Save 21%

    $158/mo

    $475 total

    Auto-refills – cancel at least 48-hours prior to next refill

    Get Started

    Dosing and safety

    TriMix is self-administered as a small injection 15–30 minutes before sexual activity. It should not be used more than once in a 24-hour period or more than three times per week. Your provider will start you on a conservative dose and gradually adjust it based on your response. We provide detailed injection instructions, ultra-fine needles, and all necessary supplies. Each 5 mL vial contains up to 10 doses at the maximum prescribed dose of 0.50 mL. Because treatment begins at a low dose and is gradually titrated, many patients will have medication remaining at the end of the month. To help maintain sterility, any unused medication should be discarded 28 days after the vial is first punctured, even if medication remains.

    Possible side effects

    • Mild pain or burning at the injection site
    • Minor bruising
    • Prolonged erection
    • Penile fibrosis (with misuse/overuse)

    The most serious risk is priapism — an erection lasting longer than 4 hours. This is a medical emergency that requires immediate care. Proper dosing and injection technique substantially reduce this risk. Do not use TriMix if you have sickle cell disease, severe cardiovascular disease, or a known penile deformity.

    Patient reviews

    What California patients say

    4.8290 reviews
    • The results have been far better than any of the oral ED medications I've tried. Very happy with how well this has worked for me.
      D.C. — verified patient
      5.0
    • It worked! I was a little nervous getting started, but everything was explained well and the Tri Mix did what it was supposed to do.
      H.G. — verified patient
      5.0
    • Most importantly, the TriMix works and I'm very pleased with it. I've also had a great experience with the doctor and support.
      A.H. — verified patient
      4.0
    • RespondWell is on point. My meds showed up in less than three days, everything was nicely packaged, and the medication works well.
      S.T. — verified patient
      5.0
    • I feel like they've democratized TriMix. Is that weird to say? Everyone else price gouges and is a pain to work with.
      E.G. — verified patient
      5.0
    • Respondwell has been great. They've also been really easy to work with – I needed to change my shipment schedule and they took care of it without any hassle.
      M.M. — verified patient
      5.0

    Reviews are unedited patient feedback. Star ratings are an aggregate of individual ratings across three categories: medical care and provider interactions, customer service and communication, and delivery experience. Shown with initials only for privacy. Individual results vary and are not guaranteed.

    Frequently asked questions

    TriMix is ideal for men who haven't had success with oral ED medications or who need a more reliable solution. It's particularly effective for men with diabetes, a history of prostate surgery, or other conditions affecting blood flow that limit the effectiveness of oral PDE5 inhibitors.

    TriMix is considered the most effective ED treatment available, with success rates over 90%. Because it's injected directly, it works independently of arousal and provides very reliable results — even when oral medications have failed.

    No. RWell providers don't prescribe phenylephrine injections, and we don't offer or advertise phenylephrine as part of our services. Why not? Because this treatment needs real-time monitoring. Phenylephrine is sometimes used off-label for priapism or prolonged erections, but clinical guidelines call for blood pressure and heart rate monitoring during and after each dose because of a real, if uncommon, risk of cardiovascular side effects. That kind of monitoring belongs in a medical setting — not at home through telehealth. Can I take Sudafed if an erection is lasting too long? For some patients, yes. Pseudoephedrine HCl — the ingredient in original Sudafed — may be considered before an erection reaches the 4-hour mark, as long as you don't have contraindications. Important: this does not mean Sudafed PE. Sudafed PE contains phenylephrine and is not the same medication. Pseudoephedrine can raise blood pressure and heart rate, so patients with heart conditions, uncontrolled blood pressure, or other risk factors should ask a clinician before using it. Learn more here: Penile Injection Instructions What should I do if I have a prolonged erection? Don't wait and hope it goes away. If your erection is lasting longer than expected, follow the instructions provided with your medication and consider taking Sudafed well in advance of reaching the 4-hour mark, where this becomes an emergency. If you have an erection lasting 4 hours or more, seek emergency medical care right away or call 911. No guessing. No toughing it out. Get checked. Why does RWell take this approach? Your safety comes first. RWell is built for convenient care, but not at the expense of clinical judgment. Some treatments just aren't appropriate for an at-home telehealth model, and our medical team has made the call not to offer phenylephrine injections for that reason.

    Common side effects include mild pain or burning at the injection site, prolonged erection, and minor bruising. The most serious risk is priapism (an erection lasting more than 4 hours), which requires immediate medical attention. Proper dosing and technique minimize these risks.

    No. Every plan is fully flexible — pause, delay, reschedule, or cancel whenever you want, right from your patient portal or with a quick message to our team. Your next refill date is always shown on your portal and in every confirmation email, and you’ll get an email and text before anything processes, so there are never surprises. Refills run every 25 days on monthly plans and every 85 days on quarterly, timed so your next supply arrives before you run out. The only ask: make changes at least 48 hours before the refill date shown so we can pull the order before the pharmacy fills it. Full flexibility, full transparency — you’re always in control. One note for injectables like TriMix: per FDA/USP guidelines, vials have a 28-day beyond-use date once punctured. Our plans have been priced to ensure you never have to choose between safety and affordability.

    RespondWell uses the T-105 formulation: • Papaverine 30mg • Phentolamine Mesylate 1mg • Prostaglandin E1 10mcg Compounded by Hallandale or Olympia Pharmacy. A 1-month supply is 5 mL; a 3-month supply is 15 mL (three 5 mL vials). Standard dosing protocol — your prescriber may adjust this: Inject 0.05–0.10 mL at the base of the penis before sexual activity. Increase by 0.025–0.05 mL based on response. Wait at least 48 hours before repeating or increasing the dose. Maximum 0.50 mL per dose; no more than 3 doses per week.

    No — RespondWell offers only the T-105 TriMix formulation. T-105 is a well-established, balanced formulation that works for the vast majority of men, and standardizing on a single formula lets our prescribers fine-tune your results through dosing adjustments rather than switching formulas. Focusing on one formulation also means our pharmacy compounds it at higher volume, which keeps quality consistent and pricing lower than we could offer across multiple formulas.

    Most men report minimal discomfort — the needle is very fine and the injection is quick. We provide complete training and supplies so you feel confident with the process. Many patients say it's much easier than they expected. Penile Injection Instructions

    Getting TriMix through RWell is straightforward and fully online — no in-person appointment required in most states. 1. Complete a quick online intake. Answer a secure health questionnaire about your ED history, medications, and medical background. It takes about 5–10 minutes. 2. Licensed provider review. A U.S.-licensed clinician reviews your intake — typically within 4 hours — to confirm TriMix is medically appropriate for you. If more information is needed, they'll message you directly through your patient portal. 3. Compounded and shipped. If approved, your prescription is sent to one of our partner compounding pharmacies (Hallandale or Olympia). Your medication ships via free UPS 2-day delivery in discreet, temperature-controlled packaging, along with ultra-fine needles, syringes, and written injection instructions. A sharps container and video instructions are not included. 4. Ongoing support. Message your care team anytime through the patient portal. Refills are handled automatically on your schedule, and you can pause or cancel at any time.

    A TriMix prescription is issued by a licensed clinician after reviewing your online medical intake — the same standard-of-care process used in a traditional clinic, just without the 3-week wait for an appointment. What's required: • You must be 18 or older and located in a state where RWell provides care. • Complete our secure health intake, including your ED history, current medications, and relevant medical conditions. • A licensed U.S. provider evaluates whether TriMix is safe and appropriate for you. Some patients may be asked follow-up questions or redirected to a different treatment (like oral PDE5 inhibitors or PT-141) if TriMix isn't the right fit. What's included with an approved prescription: • Compounded TriMix (T-105 formulation) from a licensed U.S. compounding pharmacy • Ultra-fine needles and syringes • Written injection instructions (Penile Injection Instructions) • Free UPS 2-day shipping in discreet, temperature-controlled packaging • 24/7 secure messaging with your care team for questions, dose adjustments, or refills

    Get TriMix in California, prescribed online
    .

    A licensed provider will review your intake, usually in under 4 hours. If you aren't approved, you'll receive an immediate refund.

    Get Started

    ED Treatment is not offered in the following states: South Carolina.

    Compounded medications are prepared by licensed compounding pharmacies and are not FDA-approved. The FDA does not evaluate compounded medications for safety, efficacy, or quality. Prescription products require an online consultation with a licensed clinician who will determine if a prescription is appropriate. Individual results vary. This page is for informational purposes only and is not medical advice.

    1 Reported success rates reflect published clinical literature on intracavernosal injection therapy and may not reflect individual outcomes.