Is it OK to Mail Prescription Medicines Through USPS?

Wondering if it’s legal to use USPS to ship drugs? It’s definitely important to remain compliant with federal and state laws regarding the shipment of medicines, drugs, and controlled substances via the USPS. Here’s a rundown of what’s allowed—and what’s prohibited.
Prescription medicines
According to USPS rules, if you want to ship prescription medicines, you must be a drug manufacturer, a registered agent of a drug manufacturer, pharmacy, medical practitioner, or other authorized dispenser.
Over-the-counter drugs
What about non-prescription medicines like pain and fever reducers (i.e. Tylenol, Advil), cold and cough medicines, decongestants, and antihistamine pills?
You can mail over-the-counter drugs, which are medicines purchased or obtained without a prescription. However, you would still need to be compliant with local and federal laws like the Poison Prevention Packaging Act and the Consumer Product Safety Act.
Controlled substances
Controlled substances, such as narcotics, anabolic steroids, and hallucinogenic drugs, cannot be mailed internationally and in cases of domestic mail, you would have to be an authorized dispenser, such as a medical practitioner or pharmacist. The USPS takes the shipment of narcotics very seriously, and the Postal Inspection Service Prohibited Mail Narcotics program investigates shipments of illegal drugs through the mail and works closely with state, local, and federal law enforcement agencies to combat this illicit trade.
Marijuana/cannabis
While marijuana/cannabis has been decriminalized in some states for recreational or medical use, mailing marijuana via the USPS is still illegal. Considered a Schedule I drug under the federal Controlled Substances Act of 1970, it is important to remember that marijuana is unmailable.
Drug paraphernalia
Drug paraphernalia, such as pipes of various materials, are considered restricted matter and cannot be mailed domestically or internationally.
For further information on USPS regulations regarding drugs and medicines, please see: http://pe.usps.com/text/pub52/pub52c4_019.htm
Frequently Asked Questions
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Delivery is made by the country's postal service in 3 - 5 business days, depending on the destination.
How do I calculate domestic postage costs?
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How long does USPS Ground Advantage take to deliver?
USPS Ground Advantage delivery time is typically the slowest for domestic shipping services, taking two to five business days depending on the destination.
What are the delivery times for UPS Next Day Air?
UPS Next Day Air offers guaranteed delivery by 10:30 a.m., 12:00 p.m., or end of day on the next business day, depending on the destination and specific service selected. Deliveries are made Monday through Friday, with Saturday delivery available in select areas for an additional fee.
What are nonmachinable envelopes?
Nonmachinable envelopes might be non-rectangular, rigid, unevenly thick, or have non-paper closures, meaning they cannot be processed efficiently by USPS's automated sorting equipment, and require special handling, resulting in a surcharge in addition to the standard postage.
USPS Priority Mail vs. First-Class Mail: What is the speed comparison?
USPS Priority Mail generally delivers in 2-3 business days. First-Class Mail, while more economical, typically takes 1-5 business days for delivery.
UPS Worldwide Saver vs. UPS Worldwide Expedited: What is the speed comparison?
UPS Worldwide Saver is faster than UPS Worldwide Expedited, offering delivery by the end of the next business day to major business centers, compared to 2-5 business days for Worldwide Expedited. Worldwide Saver provides a more economical alternative to premium express services while maintaining quick delivery.
How long does UPS Ground take?
UPS Ground typically takes 1 to 5 business days for delivery with 90% of UPS® Ground packages being delivered in 3 days or less.
How fast is UPS Standard compared to UPS Ground Saver?
UPS Standard is generally faster than UPS Ground Saver, as it has a typical delivery window of 1-5 business days compared to Ground Saver's 2-7 business days.
How fast is UPS Next Day Air compared to UPS Second Day Air?
UPS Next Day Air is significantly faster than UPS Second Day Air, delivering packages by the next business day, while UPS Second Day Air delivers within two business days. It's the fastest standard overnight service offered by UPS.
How fast is UPS Ground Saver vs. UPS Standard?
UPS Ground Saver is typically slower than UPS Standard, with delivery times ranging from 2-7 business days, whereas UPS Standard generally delivers within 1-5 business days.
How fast is UPS 3 Day Select compared to UPS Ground Saver?
UPS 3 Day Select is generally faster than UPS Ground Saver, offering guaranteed delivery within three business days, whereas Ground Saver can take 2-7 business days and has no guaranteed delivery time.
How fast is UPS 2nd Day Air compared to UPS 3 Day Select?
UPS 2nd Day Air is faster than UPS 3 Day Select, offering guaranteed delivery by the end of the second business day, while 3 Day Select provides guaranteed delivery by the end of the third business day.
What are the USPS Ground Advantage costs and rates?
Packages up to 15.999 ounces are priced in 4-ounce increments, while heavier packages are charged by the pound, rounded up. The further the distance, the higher the cost. Additional fees apply to oversized packages. Easily calculate discounted rates anytime at Stamps.com.
What items can be shipped through Media Mail?
Educational materials like books, music, or videos that never include any products or advertising.
What mailing and shipping services are available in Stamps.com?
Stamps.com gives you access to all mailing and shipping services from USPS, UPS, DHL, and other top carriers. Visit stamps.com/carriers for a full list.
What USPS service should I use if I want to send large envelopes under 15.994 oz, letters up to 3.5 oz, and postcards?
First-Class Mail International®
When using Priority Mail International, should I ship Flat Rate or by weight?
Flat Rate Envelopes are ideal for documents or small, dense items weighing 4 lbs or less, as they offer a single price based on the destination country. For items between 4 lbs and 70 lbs, or those that don't fit into the Flat Rate Envelopes, you'll need to ship by weight using your own packaging. It’s more affordable to use Flat Rate boxes if your item is under 20 lbs.