Phos-Nak is a Phosphate class drug produced by Cypress Pharmaceutical. The normal retail price of Phos-Nak is $47.57 per 0.60, 100 packet box, but you can pay only $12.60 for 0.6, 100 packet box of generic Phos-Nak when you use your SingleCare discount card. Phos-Nak is a branded prescription; Potassium & Sodium Phosphates is the generic form of Phos-Nak.
Edit your dosage
0.5 box, 12 packetEdit
Unlock members-only prices.Free signup.
You have 0.00 in available bonus savings. Bonus savings will be automatically applied to your next eligible prescription fill.
Show this free card to your pharmacist.

Save an extra $3 on any eligible prescription! Sign up for free
Members can save even more
and it's free to join
SingleCare’s prescription prices are based on multiple sources. The prices we publish are our best estimate, but we cannot guarantee that the price we display will exactly match the price you receive at the pharmacy. For an exact price, please contact your pharmacy and provide the BIN/GRP/PCN numbers shown on your SingleCare card.
Any SingleCare bonus savings, including the $3 signup bonus, may only be used once.
Prices updated: 12/05/2025
Members save the most
Phos-Nak is a Phosphate class drug produced by Cypress Pharmaceutical. The normal retail price of Phos-Nak is $47.57 per 0.60, 100 packet box, but you can pay only $12.60 for 0.6, 100 packet box of generic Phos-Nak when you use your SingleCare discount card. Phos-Nak is a branded prescription; Potassium & Sodium Phosphates is the generic form of Phos-Nak.
Our price history metrics are calculated from aggregate prescription data that we receive from all participating pharmacies. This chart updates daily to show new price fluctuations. If a data point is missing from the chart, it is because we do not have enough data to produce a reliable figure.
| Pharmacy | Phos-Nak Retail Price | Phosphorus Supplement Retail Price | Phosphorus Supplement SingleCare Price |
|---|---|---|---|
| Walgreens | $49.20 | $99.60 | $12.60 |
| Kroger Pharmacy | $39.00 | $139.20 | $84.00 |
These prices are based on the last month of SingleCare prescription fill data by major pharmacy. This table updates daily to show the most accurate typical prices by pharmacies. If a data point is missing from the table, it is because we do not have enough data to produce a reliable figure.
Phos-Nak is a Phosphate class drug produced by Cypress Pharmaceutical. The normal retail price of Phos-Nak is $47.57 per 0.60, 100 packet box, but you can pay only $12.60 for 0.6, 100 packet box of generic Phos-Nak when you use your SingleCare discount card. Phos-Nak is a branded prescription; Potassium & Sodium Phosphates is the generic form of Phos-Nak.
Generic Phos-Nak costs $12.60 for 0.6, 100 packet box with a free Phos-Nak coupon from SingleCare. However, you could lower this cost more depending on your Rx details. Use the dropdown menu above to update your prescription details (i.e., brand/generic, quantity, form, dosage) to see the most accurate prices of Phos-Nak with SingleCare near you.
The average counter price of Phos-Nak without health insurance is $47.57 per 0.60, 100 packet box but you can save money using a SingleCare Phos-Nak coupon to pay only $12.60 for 0.6, 100 packet box of generic Phos-Nak. Those without an insurance plan can always use SingleCare for free Phos-Nak discounts. You can also save on Phos-Nak by getting the generic form of Phos-Nak if a generic option is being produced. Potassium & Sodium Phosphates often costs significantly less than Phos-Nak.
Each specific insurance program is different and may or may not cover Phos-Nak. The cost of Phos-Nak with insurance coverage varies depending on your plan - check with your insurance carrier for explicit medication coverage and coinsurance details. If your plan does not cover Phos-Nak, you can use a SingleCare card to save on Phos-Nak at your neighborhood pharmacies. Additionally, you can also use SingleCare cards if you have Medicare or Medicaid. When Medicare or Medicaid doesn’t cover your Phos-Nak medication, try SingleCare instead. Go to the SingleCare website or app to find the lowest cost of Phos-Nak with SingleCare versus your Phos-Nak cost with insurance or Medicare.
You can use SingleCare coupons at most major pharmacies and grocers, including Walgreens, Kroger, Walmart, CVS, Safeway, and more. Simply text, email, print, or save your free Phos-Nak coupon to your digital wallet and show a pharmacist when you pick up your prescription.
Phos-Nak is a brand-name medication made by Cypress Pharmaceutical. The generic form of Phos-Nak is Potassium & Sodium Phosphates and is usually dramatically less expensive than the typical price of brand-name Phos-Nak, which is $47.57 per 0.60, 100 packet box, but uses the same active ingredients as Phos-Nak. Use a SingleCare card to pay $12.60 for 0.6, 100 packet box of generic Phos-Nak.
SingleCare is accepted at most national pharmacies and grocers, including the following:
Health education, drug info, wellness & more
Prescription savings vary by prescription and by pharmacy, and may reach up to 80% off cash price. This is a medical discount plan. This is NOT insurance. This program offers you the opportunity to locate providers of various types of medical services who will offer their services to you at discounted rates. The range of discounts for medical or ancillary services provided under the plan will vary depending on the type of provider and service received. You are fully responsible for paying for all health care services but will be entitled to receive a discount from those health care providers in accordance with the specific pre-negotiated discounted fee schedule. This program does not guarantee the quality of the services or procedures offered by the providers. Except for prescription drugs which you will pay directly to the pharmacy at the time of purchase, all other services received through a program provider will be charged to the credit card on file in your member account. The charge will include an administrative fee for use of the program. Towers Administrators LLC is the licensed discount medical plan organization with its administrative office located at 4510 Cox Road, Suite 111, Glen Allen, VA 23060. SingleCare Services, LLC is the marketer of the discount medical plan organization including its website, singlecare.com, with its corporate office located at 99 High Street, Suite 2800, Boston, MA 02110. For additional information, including an up-to-date list of providers, or assistance with any issue related to program membership, please contact member support any time at www.singlecare.com, or by calling toll-free 844-234-3057, 24 hours, 7 days a week (except major holidays). Pharmacy names, logos, brands, and other trademarks are the property of their respective owners.
Blog articles are not medical advice. They are intended for general informational purposes and are not meant to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. If you think you may have a medical emergency, immediately call your physician or dial 911.
© 2025 SingleCare Administrators. All rights reserved
© 2025 SingleCare Administrators. All rights reserved