What is Quad-Mix?
Four-ingredient injectable ED treatment with enhanced tolerability
Vasodilator / Alpha-Blocker / Prostaglandin / Anticholinergic
Overview
Quad-Mix is a compounded injectable medication used to treat erectile dysfunction (ED). It combines four active ingredients - Papaverine, Phentolamine, Prostaglandin E1 (PGE1/Alprostadil), and Atropine - that work together through complementary mechanisms to increase blood flow to the penis and produce an erection.
The medication is administered through intracavernosal injection, meaning it is injected directly into the erectile tissue of the penis. This direct delivery allows the medication to work locally with minimal systemic effects.
Quad-Mix represents an evolution from Tri-Mix, adding Atropine as a fourth ingredient. The addition of Atropine may help reduce the penile aching or burning sensation that some men experience from the PGE1 component, potentially improving tolerability and comfort.
Important Disclosure: Quad-Mix is a compounded medication prepared by FDA-registered 503A compounding pharmacies. Compounded medications are not FDA-approved. They are prepared by licensed compounding pharmacies under the supervision of healthcare providers and may differ in effectiveness, side effects, and risk profile compared to FDA-approved drugs.
The medication is administered through intracavernosal injection, meaning it is injected directly into the erectile tissue of the penis. This direct delivery allows the medication to work locally with minimal systemic effects.
Quad-Mix represents an evolution from Tri-Mix, adding Atropine as a fourth ingredient. The addition of Atropine may help reduce the penile aching or burning sensation that some men experience from the PGE1 component, potentially improving tolerability and comfort.
Important Disclosure: Quad-Mix is a compounded medication prepared by FDA-registered 503A compounding pharmacies. Compounded medications are not FDA-approved. They are prepared by licensed compounding pharmacies under the supervision of healthcare providers and may differ in effectiveness, side effects, and risk profile compared to FDA-approved drugs.
Key Points
- Four-ingredient formula for comprehensive ED treatment
- Enhanced tolerability with Atropine to reduce discomfort
- Works within 5-15 minutes for most men
- Alternative when oral ED medications fail or cannot be used
Quick Facts
Drug Class
Vasodilator / Alpha-Blocker / Prostaglandin / Anticholinergic
Active Ingredients
Papaverine, Phentolamine, PGE1 (Alprostadil), Atropine
Administration
Intracavernosal Injection
Onset of Action
5-15 minutes
Duration
30 minutes to 2 hours
Prescription Required
Yes
Benefits of Quad-Mix
Four-Ingredient Formula
Combines four active ingredients with complementary mechanisms of action for comprehensive ED treatment. The quadruple-action approach targets erectile dysfunction through multiple pathways simultaneously.
Enhanced Tolerability
The addition of Atropine may reduce the penile aching or burning that some men experience with PGE1, making injections more comfortable. Many men find Quad-Mix more tolerable than Tri-Mix for this reason.
Rapid Onset
Works within 5-15 minutes when administered correctly, allowing for spontaneity. This fast action provides more natural timing compared to waiting for oral medications to take effect.
High Efficacy
Effective for many men who have not responded to oral ED medications or other treatments. The multi-ingredient approach provides a powerful alternative when other options have failed.
Alternative to Oral Medications
Provides an option for men who cannot take PDE5 inhibitors due to contraindications (such as nitrate use) or side effects. Direct injection bypasses systemic absorption concerns.
Localized Action
Works directly at the site of action with minimal systemic effects compared to oral medications. This targeted delivery reduces the risk of systemic side effects like headaches or vision changes.
How Quad-Mix Works
- Papaverine relaxes smooth muscle and dilates blood vessels
- Phentolamine blocks alpha receptors to prevent vasoconstriction
- PGE1 stimulates cyclic AMP for smooth muscle relaxation
- Atropine reduces PGE1-related discomfort and enhances tolerability
- Four mechanisms work synergistically for enhanced effectiveness
Think of Quad-Mix like a four-person team working together to open and maintain a water gate. Papaverine and PGE1 actively push the gate open (vasodilation), Phentolamine prevents it from closing (blocks constriction), and Atropine reduces the friction and discomfort of the mechanism (anticholinergic effect). All four work together to ensure smooth, comfortable, and effective operation.
Available Formulations
Quad-Mix is available in different volume options:
2.5ml Vial (TPH Pharmacy)
- Available in all eligible states
- Standard formulation: Papaverine 0.9mg/Phentolamine 0.1mg/PGE1 20mcg/Atropine 0.01mg per ml
10ml Vial (RxC Pharmacy)
- Available in limited states: Arizona, Colorado, Minnesota, Nevada, and Utah
- Higher-strength formulation: Papaverine 30mg/Phentolamine 3mg/PGE1 300mcg/Atropine 0.2mg per ml
Note: Unlike Tri-Mix, Quad-Mix is not available in a 5ml option. The appropriate volume and concentration will be determined by your healthcare provider based on your individual needs and response.
Your healthcare provider will work with you to find the appropriate formulation and dose. It's common to start with a lower dose and gradually adjust based on your response.
2.5ml Vial (TPH Pharmacy)
- Available in all eligible states
- Standard formulation: Papaverine 0.9mg/Phentolamine 0.1mg/PGE1 20mcg/Atropine 0.01mg per ml
10ml Vial (RxC Pharmacy)
- Available in limited states: Arizona, Colorado, Minnesota, Nevada, and Utah
- Higher-strength formulation: Papaverine 30mg/Phentolamine 3mg/PGE1 300mcg/Atropine 0.2mg per ml
Note: Unlike Tri-Mix, Quad-Mix is not available in a 5ml option. The appropriate volume and concentration will be determined by your healthcare provider based on your individual needs and response.
Your healthcare provider will work with you to find the appropriate formulation and dose. It's common to start with a lower dose and gradually adjust based on your response.
How to Use Quad-Mix
Injectable Form
Quad-Mix is administered through intracavernosal injection. Proper technique is essential for safety and effectiveness.
- 1Receive comprehensive training from your healthcare provider
- 2Wash hands thoroughly and prepare the medication
- 3Clean the injection site with an alcohol swab
- 4Select an injection site on the side of the penis, avoiding blood vessels
- 5Insert the needle at the correct angle and depth as instructed
- 6Inject the medication slowly over 10-15 seconds
- 7Apply pressure to the injection site for 2-3 minutes
- 8Alternate sides with each injection
Important Notes
- Do not exceed the dose prescribed by your healthcare provider
- Do not use more than once in a 24-hour period
- Allow at least 48-72 hours between uses when possible
- Store medication according to pharmacy instructions (usually refrigerated)
- Seek immediate medical attention for erections lasting more than 4 hours
Potential Side Effects
Common Side Effects
•
Mild pain or discomfort at injection site(Common)
Often less than with Tri-Mix due to Atropine
•
Minor bruising at injection site(Common)
Resolves within days
•
Slight bleeding after injection(Common)
Apply pressure for 1-2 minutes
•
Dry mouth(Common)
From Atropine component
•
Mild increase in heart rate(Uncommon)
From Atropine; usually temporary
•
Temporary warmth or flushing(Uncommon)
Usually mild and brief
Serious Side Effects (Seek Medical Attention)
- Priapism (erection lasting >4 hours)- Medical emergency
Seek immediate medical attention to prevent permanent damage
- Severe pain or unusual swelling at injection site- Potential infection or hematoma
Contact healthcare provider immediately
- Signs of infection (redness, warmth, pus)- Bacterial infection
Contact healthcare provider immediately
- Penile curvature or nodules- May indicate fibrosis
Contact healthcare provider
- Hematoma (large blood collection under skin)- Requires medical evaluation
Contact healthcare provider
- Difficulty urinating (urinary retention)- From Atropine effect
Seek medical attention
- Severe dizziness or fainting- Hypotension or cardiovascular effect
Seek medical attention
Safety Information
Who Should NOT Take Quad-Mix
- ✗Sickle cell anemia, multiple myeloma, leukemia, or conditions that predispose to priapism
- ✗Uncontrolled narrow-angle glaucoma
- ✗Anatomical deformity of the penis
- ✗Penile implants
- ✗Known allergy to any ingredient
Drug Interactions
- Other erectile dysfunction medications (oral PDE5 inhibitors, other injectables)
- Blood pressure medications (may enhance hypotensive effects)
- Blood thinners/anticoagulants (increased bruising risk)
- MAO inhibitors (potential interaction with Phentolamine)
- Antihistamines and other anticholinergic medications (additive effects with Atropine)
- Alpha-blockers (additive blood pressure lowering effect)
Getting Started with Quad-Mix
Quad-Mix is a prescription-only compounded medication. Getting started is straightforward:
Medical Questionnaire
Complete a brief online medical questionnaire about your ED symptoms and medical history.
Provider Review
A licensed healthcare provider reviews your information and determines if Quad-Mix is appropriate for you.
Prescription
If approved, your prescription is sent to our compounding pharmacy along with injection training materials.
Delivery & Start
Your Quad-Mix is shipped directly to your door with discreet packaging. Follow the injection instructions provided.
Who Should Consider Quad-Mix?
Ideal Candidates
- Have erectile dysfunction that has not responded to oral medications (Viagra, Cialis)
- Cannot take oral PDE5 inhibitors due to contraindications (nitrate use, cardiovascular conditions)
- Experienced significant burning or discomfort with Tri-Mix injections
- Have neurogenic ED (from diabetes, spinal injury, or prostate surgery)
- Have vasculogenic ED (from vascular disease or diabetes)
- Prefer a non-oral treatment option
- Are comfortable with self-injection therapy
Reversal Injection for Quad-Mix
As with all injectable ED treatments, we strongly recommend having a Reversal Injection available as a safety precaution when using Quad-Mix.
What is the Reversal Injection?
The Reversal Injection contains Phenylephrine, an alpha-adrenergic agonist that constricts blood vessels. If your erection lasts longer than 2 hours or becomes painful, the Reversal Injection can help reverse the effects of Quad-Mix and return the penis to a flaccid state.
When to Use:
- If erection lasts longer than 2 hours
- If erection becomes painful
- As directed by your healthcare provider
Important: Even with a Reversal Injection available, you should still seek immediate medical attention if an erection lasts more than 4 hours. Priapism is a medical emergency that can cause permanent damage.
Get Reversal InjectionWhat is the Reversal Injection?
The Reversal Injection contains Phenylephrine, an alpha-adrenergic agonist that constricts blood vessels. If your erection lasts longer than 2 hours or becomes painful, the Reversal Injection can help reverse the effects of Quad-Mix and return the penis to a flaccid state.
When to Use:
- If erection lasts longer than 2 hours
- If erection becomes painful
- As directed by your healthcare provider
Important: Even with a Reversal Injection available, you should still seek immediate medical attention if an erection lasts more than 4 hours. Priapism is a medical emergency that can cause permanent damage.
Frequently Asked Questions
Quad-Mix contains four active ingredients while Tri-Mix contains three. The addition of Atropine in Quad-Mix may help reduce the penile aching or burning sensation that some men experience from the PGE1 component, potentially making injections more comfortable.
Quad-Mix typically begins working within 5-15 minutes after injection. The effects can last from 30 minutes to 2 hours, depending on the dose and individual response.
Most men report minimal discomfort with proper technique. The needle used is very fine (typically 29-30 gauge). Many men find Quad-Mix more comfortable than Tri-Mix because the Atropine component may reduce PGE1-related burning sensations.
Priapism is an erection lasting more than 4 hours. It's a medical emergency because prolonged erection can damage erectile tissue, potentially causing permanent erectile dysfunction. If you experience an erection lasting more than 4 hours, seek immediate medical attention.
Do not use Quad-Mix more than once in a 24-hour period. Most healthcare providers recommend limiting use to 2-3 times per week with at least 24-48 hours between uses to minimize the risk of fibrosis.
The 10ml vials are prepared by our RxC pharmacy partner, which is only licensed to ship to Arizona, Colorado, Minnesota, Nevada, and Utah. The 2.5ml vials are prepared by our TPH pharmacy and are available in all nine eligible states.
Atropine is an anticholinergic medication. At the low doses used in Quad-Mix, potential side effects include mild dry mouth and a slight increase in heart rate. Rarely, it may cause urinary retention. Do not use Quad-Mix if you have narrow-angle glaucoma.
No, you should not combine Quad-Mix with oral ED medications like Viagra (sildenafil) or Cialis (tadalafil) unless specifically directed by your healthcare provider. Combining these treatments significantly increases the risk of priapism and severe low blood pressure.
Store Quad-Mix according to your pharmacy's instructions, typically refrigerated between 36-46°F (2-8°C). Protect from light and do not freeze. Check the expiration date and do not use if expired or if the solution appears cloudy or discolored.
Yes, Quad-Mix is a prescription-only compounded medication. A healthcare provider must evaluate your medical history, determine if Quad-Mix is appropriate for you, prescribe the correct formulation and dose, and provide training on proper injection technique.
The Reversal Injection contains Phenylephrine, which can help reverse the effects of Quad-Mix if your erection lasts too long. We strongly recommend having a Reversal Injection on hand as a safety precaution for anyone using injectable ED treatments. It can help prevent priapism from becoming a medical emergency. It is available at /prescriptions/reversal-injection.
Ready to Get Started with Quad-Mix?
Choose the form that works best for you and begin your journey today.
Quad-Mix Injectable
Four-ingredient injectable formula with Papaverine, Phentolamine, PGE1, and Atropine