Read before buying drugs

Select Drugs:


No Prescription

Caverject and the similar brand Edex are both taken by injection. A third brand, Muse, is taken as a small suppository inserted in the penis.
Caverject is prescribed to treat male impotence. Your doctor may use Caverject to help diagnose the exact nature of your impotence.
Caverject is known to have caused extremely long-lasting erections.
Serious harm can occur from such a prolonged erection, so call your doctor or seek other professional help if an erection lasts more than 4 hours.
Usually the erection should last about 1 hour.

Side Effects

Caverject side effects that you should report to your health care professional or doctor as soon as possible:


Use of Caverject may result in formation of fibrous (hardened) tissue in the penis or erections at an unusual angle.
Your doctor should examine your penis regularly if you use Caverject.
If those side effects occur, inform your doctor and stop using Caverject.

A small amount of bleeding may occur at the injection site.
The most common side effect is mild to moderate pain in the penis during and/or after injection, reported by about one-third of users.
Notify your doctor if you have a condition or are taking a medication that interferes with blood clotting.
Call your doctor if you notice any redness, lumps, swelling, tenderness, or curving of the erect penis.
As with any injection, the site can become infected.

More common side effects may include:
- Upper respiratory infection;
- Tearing of the skin);
- Strange feeling;
- Prolonged erection;
- Pain in the penis;
- Hardened tissue in the penis;
- Disorder of the penis (such as discoloration of the head;
- Blood-filled swelling at the site of injection;

Less common side effects may include:
- Skin disorders;
- Sinus inflammation;
- Redness;
- Pain;
- Nasal congestion;
- Leg pain;
- Injuries/fractures/abrasions/lacerations/dislocations;
- Inflamed or enlarged prostate;
- Infection;
- High blood pressure;
- Heart attack;
- Headache;
- Flu symptoms;
- Dizziness;
- Cough;
- Bruising at the injection site;
- Back pain;
- Abnormal vision;

Rare side effects may include:
- Yeast infection;
- Weakness;
- Warmth;
- Tightness of the foreskin;
- Testicular pain;
- Swelling of the scrotum;
- Swelling of the head of the penis;
- Swelling at the injection site;
- Sensitivity;
- Redness;
- Rash on the penis;
- Profuse sweating;
- Pelvic pain;
- Painful erection;
- Numbness;
- Nausea;
- Low blood pressure;
- Leg cramps;
- Lack of sensation;
- Itching;
- Irritation;
- Inflammation;
- Impaired urination;
- Hemorrhage at the injection site;
- Frequent or urgent urination;
- Fluid retention at the injection site;
- Fainting;
- Extreme dilation of the pupils;
- Dry mouth;
- Dizziness;
- Blood in the urine;
- Bleeding at the urethra;
- Abnormal ejaculation;


More common side effects may include:
- Testicular pain;
- Penis burning or pain;
- Penis bleeding;
- Pain;
- Infection;
- Headache;
- Flu symptoms;
- Extremely low blood pressure;

Less common side effects may include:
- Swelling of leg veins;
- Runny nose;
- Rapid pulse;
- Pelvic pain;
- Pain in the area behind the testicles;
- Leg pain;
- Dizziness;
- Back pain;


Caverject is contraindicated if you have any of the following conditions:
- If it causes an allergic reaction;
- If you have a condition that might result in long-lasting erections, such as sickle cell anemia;
- If you have ever had a reaction to any prostaglandin drugs;


Do not take Caverject with any of the following drugs:
No interactions have been reported, but these products should not be prescribed with other drugs that act on blood vessels, such as blood pressure medications.
You may have some bleeding at the site of injection or insertion.
If you are taking anticoagulants such as heparin or Coumadin you may bleed more. Make sure that any doctor who prescribes an anticoagulant is aware that you are using one of these medications.



The 125- or 250-microgram strength is recommended at the start.
The suppositories come in four strengths, ranging from 125 to 1,000 micrograms.
Remember that you must not use more than 2 suppositories in each 24 hours.
Your doctor will prescribe a higher strength if necessary.


Each man will need a different dose of Caverject, but the usual starting dosage is 1.25 or 2.5 micrograms, which is then increased gradually.
The correct dose of Caverject must be carefully determined by your doctor.
Doses should not exceed 60 micrograms.
Your doctor will adjust the dosage, particularly if it produces erections lasting longer than 1 hour.

The dosage range for Edex is 1 to 40 micrograms, given over 5 to 10 seconds.

See your doctor every 3 months for a checkup.
Do not change your dosage without your doctor's approval.


No overdose of Caverject has been reported.
However, any medication taken in excess can have serious consequences.
The chief symptom of an overdose of this drug would be a prolonged erection.
If you suspect an overdose, seek medical attention immediately.
(c) 2017