AL Pharm Tech

    Transdermal Patch

    Lidocaine Patch Day Supply Calculator

    Generic: lidocaine 5% transdermal patch · 5% · Box of 30 patches

    Open free days supply calculator

    Worked example

    Apply up to 3 patches to the affected area for 12 hours, then off for 12 hours

    Dispensed
    30 patches
    Daily use
    3 patches/day
    10
    days supply
    1. Sig allows up to 3 patches applied each day
    2. 30 patches divided by 3 per day = 10 day supply

    Alabama Days Supply Cheat Sheet

    One printable page with the days supply math Alabama pharmacies check at the bench and on every insurance claim.

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    The days supply calculator stays free. Built by Tyler Dalton, PharmD.

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    Product details

    • Brand: Lidocaine Patch
    • Generic: lidocaine 5% transdermal patch
    • Strength: 5%
    • Typical package: Box of 30 patches
    • Calculator tab: Use the topical section in our tool

    Pharmacy tech tips

    • Bill the maximum patches per day the sig allows, which is often three.
    • The 12 hours on and 12 hours off schedule does not change the count, since the patches are applied once per calendar day.
    • A sig of one patch daily makes the same box a 30 day supply, so read the quantity per day carefully.

    Frequently asked questions

    How do you calculate day supply for lidocaine patches?

    Divide the number of patches by the maximum patches applied per day. A box of 30 at three patches a day is a 10 day supply.

    Does the 12 hour off period count as extra days?

    No. The patch is still applied once during that calendar day, so the day count is based on patches used per day.

    Related Transdermal Patch guides

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    Run the numbers with a free calculator

    Same math, done for you. Enter the quantity and sig and get the day supply in seconds.