Needles and syringes should only be used under the guidance of a healthcare professional. Using the wrong size or improper technique can lead to complications such as tissue damage or infection. If the needles are for a specific treatment like insulin, a healthcare provider can provide a prescription and training on safe administration.
For those seeking needles for harm reduction purposes, many communities offer supervised programs that provide sterile supplies and safe disposal options to support public health. Syringes & Needles - MediSupplies
: Some states require a physician's prescription for any quantity of syringes, while others allow for the purchase of a limited number (often 10 or 20) without a prescription.