A systematic rotation schedule should ensure no site receives repeated injections within 24-48 hours
Medically supervised men's health in Boise & Meridian, Idaho
Storing the vial in a refrigerator also protects it from light, which can degrade the preservative and compromise the solution over time
I thought about asking the doctor or nurse next time I saw them for their logic (but in todays environment the standard answer from them is if you ask questions, they consider that aggressive behaviour, so Ive been rather put off speaking up)

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Its a long trip, but full of natural beauty