One monthly number can describe two schedules
When a sermorelin page displays a monthly amount, determine whether it describes the payment itself or an average across a longer purchase. Medication may arrive each month even when the full quarter or year is billed upfront. The shipment rhythm cannot establish the payment agreement or the conditions for ending it.
Write down the amount due at enrollment, the next billing date and the expected shipment dates separately. Then connect them to the product and quantity actually prescribed. This prevents a comparison from treating every monthly-looking headline as a month-to-month service with the same flexibility.
Work through the iThriveMD example
The checked iThriveMD page lists a $249 monthly option, plus monthly equivalents of $224.10 for three months, $211.65 for six months and $199.20 for twelve months. Its labels state that the longer plans bill at those respective intervals and ship monthly. Multiplying the equivalents gives $672.30, $1,269.90 and $2,390.40 for those periods.
These calculated totals describe the published schedule before any extra charges; they are not receipts from completed purchases. The final estimate should confirm them and specify laboratory work, consultation, follow-up, medication, supplies and delivery. An advertised discount is meaningful only after the compared plans include the same relevant services.
Compare like periods without assuming continued treatment
If the $249 monthly rate stayed unchanged for twelve months, the medication-plan arithmetic would be $2,988. The displayed annual equivalent produces $2,390.40, a difference of $597.60 over that hypothetical year. The calculation explains the rate difference but does not establish that an individual should use treatment for twelve months.
Clinical decisions may change after an assessment or follow-up. Ask how a prepaid agreement handles that possibility before valuing the discount. A lower annual equivalent can be less useful if the agreement does not provide the flexibility a person needs. The review should show that tradeoff without guessing the provider's refund policy.
Know when a starting offer cannot be annualized
IVY RX's current sermorelin page displays a $179 entry amount with a variable-use description. It does not establish the same monthly denominator as iThriveMD's monthly option. Treating $179 as a recurring thirty-day bill would create an unsupported comparison, even though the two headlines are easy to place side by side.
Request the supply period and refill amount before doing that calculation. The same caution applies to vial-only listings and plans whose prices depend on a later consultation. Unknown costs should remain identified as unknown. A comparison becomes clearer when it preserves the missing facts instead of filling them with convenient assumptions.
Review the agreement before paying
Ask when the order becomes noncancelable, how renewal is authorized and when a cancellation must arrive to prevent the next charge. Distinguish ending future billing from returning medication already dispensed. Also clarify what happens if the clinician declines to prescribe, changes the plan or advises stopping before a prepaid period ends.
Keep the written quote and selected agreement together, including the exact product name and route. Use the cost worksheet once those inputs are established. The arithmetic can clarify financial commitment; it cannot establish eligibility, choose a prescription or guarantee that a longer plan is clinically appropriate.
Sources & further reading
Official pages and evidence consulted for this article. Checked October 11, 2026. Provider pages establish advertised terms; they do not independently establish effectiveness.