--- title: "Fentanyl Patch Day Supply Calculator & Examples | Alabama Pharmacy Tech" description: "Calculate Fentanyl Patch (fentanyl transdermal system) days supply. Worked example: 30 days with step-by-step pharmacy math." lang: en json-ld: | [ { "@context": "https://schema.org", "@type": "MedicalWebPage", "name": "Fentanyl Patch Day Supply Calculator & Examples", "description": "Calculate Fentanyl Patch (fentanyl transdermal system) days supply. Worked example: 30 days with step-by-step pharmacy math.", "url": "https://www.alabamapharmtech.com/tools/days-supply-calculator/fentanyl-patch" }, { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.alabamapharmtech.com/" }, { "@type": "ListItem", "position": 2, "name": "Days Supply Calculator", "item": "https://www.alabamapharmtech.com/tools/days-supply-calculator" }, { "@type": "ListItem", "position": 3, "name": "Fentanyl Patch Day Supply", "item": "https://www.alabamapharmtech.com/tools/days-supply-calculator/fentanyl-patch" } ] }, { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "How do you calculate day supply for a fentanyl patch?", "acceptedAnswer": { "@type": "Answer", "text": "Multiply the number of patches by the number of days each patch is worn. Ten patches changed every 72 hours is a 30 day supply." } }, { "@type": "Question", "name": "What if the patch is changed every 48 hours?", "acceptedAnswer": { "@type": "Answer", "text": "Each patch covers two days, so ten patches is a 20 day supply. Enter the interval from the sig, not the standard 72 hours." } } ] }, { "@context": "https://schema.org", "@type": "HowTo", "name": "How to calculate the day supply for Fentanyl Patch", "description": "Worked example that turns the sig Apply 1 patch transdermally every 72 hours into a billable day supply for Fentanyl Patch (fentanyl transdermal system).", "url": "https://www.alabamapharmtech.com/tools/days-supply-calculator/fentanyl-patch", "totalTime": "PT2M", "supply": [ { "@type": "HowToSupply", "name": "Fentanyl Patch 12, 25, 50, 75, or 100 mcg/hr" }, { "@type": "HowToSupply", "name": "Box of 5 patches" } ], "step": [ { "@type": "HowToStep", "position": 1, "name": "Read the quantity dispensed", "text": "This example dispenses 10 patches.", "url": "https://www.alabamapharmtech.com/tools/days-supply-calculator/fentanyl-patch#step-1" }, { "@type": "HowToStep", "position": 2, "name": "Convert the sig into daily use", "text": "The sig Apply 1 patch transdermally every 72 hours works out to 1 patch per 3 days.", "url": "https://www.alabamapharmtech.com/tools/days-supply-calculator/fentanyl-patch#step-2" }, { "@type": "HowToStep", "position": 3, "name": "Work the math, step 1", "text": "One patch lasts 72 hours, so each patch is 3 days", "url": "https://www.alabamapharmtech.com/tools/days-supply-calculator/fentanyl-patch#step-3" }, { "@type": "HowToStep", "position": 4, "name": "Work the math, step 2", "text": "10 patches x 3 days = 30 day supply", "url": "https://www.alabamapharmtech.com/tools/days-supply-calculator/fentanyl-patch#step-4" }, { "@type": "HowToStep", "position": 5, "name": "Bill the day supply", "text": "The billable day supply for this example is 30 days. Round down and confirm the number fits the plan limits.", "url": "https://www.alabamapharmtech.com/tools/days-supply-calculator/fentanyl-patch#step-5" } ] }, { "@context": "https://schema.org", "@type": "EducationalOrganization", "name": "Alabama Pharmacy Tech Training", "url": "https://alabamapharmtech.com", "areaServed": "Alabama", "sameAs": [ "https://albop.com/" ] }, { "@context": "https://schema.org", "@type": "WebSite", "name": "Alabama Pharmacy Tech Training", "url": "https://alabamapharmtech.com", "inLanguage": "en-US" } ] --- [ Alabama Pharmacy Tech ALBOP Approved Training AL Pharm Tech ](/) [Shop](/shop)[Modules](/#modules)[Math Course](/pharmacy-math-practice)[Days Supply Calculator](/tools/days-supply-calculator)[Requirements](/alabama-requirements)[Blog](/blog)[Employers](/employers)[Contact](/contact) Student Login Login [Enroll Now](/register?utm_source=website&utm_medium=header&utm_campaign=header_nav) - [Home](/) - [Tools](/tools) - [Days Supply Calculator](/tools/days-supply-calculator) - [Drug guides](/tools/days-supply-calculator/drugs) - Fentanyl Patch day supply Transdermal Patch # Fentanyl Patch Day Supply Calculator Generic: **fentanyl transdermal system** · 12, 25, 50, 75, or 100 mcg/hr · Box of 5 patches [Open free days supply calculator](/tools/days-supply-calculator) ## Worked example Apply 1 patch transdermally every 72 hours Dispensed 10 patches Daily use 1 patch per 3 days 30 days supply 1. One patch lasts 72 hours, so each patch is 3 days 2. 10 patches x 3 days = 30 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. One-time download $1 - Tablets, capsules, and tapers using the whole number rounding Alabama pharmacies expect - Insulin vials and pens, with units per package worked out for you - Inhalers, puffs, eye drops, and mL to drops conversions - The same math taught in the ALBOP approved technician training program from Dalton Pharmacy Email for your access link Get the $1 cheat sheet The days supply calculator stays free. Built by Tyler Dalton, PharmD. ## Meet your Alabama training requirement Days supply is the math you will use at the bench. Alabama Pharm Tech is ALBOP-approved training that walks you through this math step by step, plus everything else you need to finish on time. - ALBOP-approved training program - Start today, finish on your schedule - Pharmacy math practice with worked solutions - One payment of $199, everything included [Enroll Now - $199](/register?src=day-supply-fentanyl-patch) ## Product details - **Brand:** Fentanyl Patch - **Generic:** fentanyl transdermal system - **Strength:** 12, 25, 50, 75, or 100 mcg/hr - **Typical package:** Box of 5 patches - **Calculator tab:** Use the topical section in our tool ## Pharmacy tech tips - Every 72 hours means each patch covers 3 days, so 10 patches is 30 days. - A few patients are prescribed every 48 hours, which makes 10 patches a 20 day supply. - This is a controlled substance, so the days supply must match the sig exactly for state reporting. ## Frequently asked questions ### How do you calculate day supply for a fentanyl patch? Multiply the number of patches by the number of days each patch is worn. Ten patches changed every 72 hours is a 30 day supply. ### What if the patch is changed every 48 hours? Each patch covers two days, so ten patches is a 20 day supply. Enter the interval from the sig, not the standard 72 hours. ## Related Transdermal Patch guides [Nitroglycerin Patch day supply](/tools/days-supply-calculator/nitroglycerin-patch)[Lidocaine Patch day supply](/tools/days-supply-calculator/lidocaine-patch) ## Run the numbers with a free calculator Same math, done for you. Enter the quantity and sig and get the day supply in seconds. - [Days Supply Calculator Calculate days supply for tablets, liquids, inhalers, insulin, and eye drops ](/tools/days-supply-calculator) - [Refill Calculator Next refill date, run out date, and the earliest date insurance will pay ](/tools/refill-calculator) - [Free Tools Calculators and quick-reference guides for pharmacy technicians ](/tools) - [Insulin Day Supply Calculator Vials and pens converted to units, divided by total daily units ](/tools/insulin-day-supply-calculator) - [Eye Drop Day Supply Calculator mL to drops, one eye or both, with bottle size quick reference ](/tools/eye-drop-day-supply-calculator) - [Tablet Day Supply Calculator Pills and capsules, including every other day and weekly sigs ](/tools/tablet-day-supply-calculator) - [mg to mL Dose Calculator Convert a milligram dose to millilitres and get the liquid days supply ](/tools/liquid-dose-calculator) - [Cream Day Supply Calculator Grams per day with a fingertip unit chart by body area ](/tools/cream-day-supply-calculator) - [Inhaler Day Supply Calculator Actuations divided by puffs per day for albuterol and maintenance inhalers ](/tools/inhaler-day-supply-calculator) Alabama Pharm Tech ALBOP Approved Training ALBOP-approved pharmacy technician training program designed to meet all Alabama Board of Pharmacy requirements. 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