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Can you clarify exactly what your question is and what medication you are referring to?
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The standard concentration of this combination of drugs is papaverine 30 mg, phentolamine 1 mg, and alprostadil 10 mcg per ml. The usual initial dose is 0.05 ml injected into the penis, and the dose can be adjusted until the desired effect is achieved, up to a maximum dose of 0.5 ml.
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