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do not use a needle that has been bent previously for the injection
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a restraightened needle may break off and remain embedded within the corpus cavernosum
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use syringe, needle and medication vial once then discard
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reuse of supplies can result in bacterial infection
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store unreconstituted drug vials within temperature specifications (do not freeze, do not warm above 25°C or 77°F)
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drug inactivation
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use the drug within 24 hours after reconstitution and do not refrigerate, freeze or warm above 25°C
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potential for bacterial contamination
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examine the drug solution for precipitate material or discoloration before use
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cellulitis from bacterial or fungal contaminants
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expel air bubbles after drawing the dose into the syringe
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local irritation and pain
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draw up the specified volume of drug
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too little can result in underdosage; too much can result in overdosage
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identify the corpora cavernosa (spongy tissue running along the side of the penis)
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injection into other tissue may result in failure to achieve an erection or the risk for toxic effect
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select a site for injection (alternate between the left and right corpus cavernosum for the injection; vary the site of injection on each side)
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re-use of the same site can result in injury with scarring
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clean skin surface prior to injection
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cellulitis from skin flora
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avoid injection into the blood vessels on the dorsum of the penis in the midline (upperside when erect)
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systemic symptoms, including hypertensions, headache, dizziness, etc.
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avoid injection into the urethra and corpus spongiosum (underside in midline)
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local trauma and no effect
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enter the penile skin at 90° to the surface
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injecting the drug at an acute angle may miss the corpus with drug going into pericavernosal soft tissue with no effect
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discard needles, syringes and drug once injection complete in a safety container
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accidental injury or disease transmission
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monitor the penis for swelling, discoloration or painful areas
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delayed recognition of injury or infection can result in more severe damage
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