Short answer

Ozempic and Wegovy are both semaglutide, but their FDA labels differ. Ozempic treats type 2 diabetes and tops out at 2 mg weekly. Wegovy covers weight, heart risk and MASH, rising in 4-week steps to 2.4 mg: step 5 starts in week 4 × 4 + 1 = 17. Wegovy HD adds 7.2 mg. As of Oct 21, 2026.

On this page14 sections
  1. Side-by-side comparison table
  2. Indications: who each label covers
  3. Dose ladders side by side
  4. Pens, syringes and strengths
  5. Tablets: the Wegovy pill and Ozempic tablets
  6. Half-life and time in the body
  7. Missed doses and changing the day
  8. Trials behind each label
  9. Side effects in each label
  10. Can you switch between them?
  11. Coverage and savings programs
  12. Compounded semaglutide
  13. FAQ
  14. Sources
Key facts (as of Oct 21, 2026)
ItemValueSource
Ozempic active ingredientSemaglutide, a GLP-1 receptor agonistNovo Nordisk, Jun 1, 2026
Wegovy active ingredientSemaglutide, a GLP-1 receptor agonistNovo Nordisk, Jun 18, 2026
Ozempic first FDA approvalDec 5, 2017FDA, Oct 19, 2026
Wegovy first FDA approvalJun 4, 2021FDA, Oct 19, 2026
Ozempic indicationsType 2 diabetes: glycemic control; cardiovascular risk with heart disease; kidney and CV outcomes with chronic kidney diseaseNovo Nordisk, Jun 1, 2026
Wegovy injection indicationsWeight reduction (adults and ages 12+); CV risk with heart disease and obesity or overweight; noncirrhotic MASH (F2–F3)Novo Nordisk, Jun 18, 2026
Ozempic ladder0.25 mg × 4 weeks, then 0.5 mg; 1 mg and 2 mg only if more glycemic control is needed, each after ≥4 weeksNovo Nordisk, Jun 1, 2026
Wegovy ladder0.25 → 0.5 → 1 → 1.7 → 2.4 mg every 4 weeks; optional 7.2 mg (Wegovy HD) for adult weight reductionNovo Nordisk, Jun 18, 2026
Ozempic maximum weekly dose2 mgNovo Nordisk, Jun 1, 2026
Wegovy maximum weekly dose7.2 mg (Wegovy HD), adult weight reduction only; otherwise 2.4 mgNovo Nordisk, Jun 18, 2026
Ozempic missed doseGive as soon as possible within 5 days; after 5 days, skipNovo Nordisk, Jun 1, 2026
Wegovy missed doseGive if next dose is more than 2 days away; otherwise skipNovo Nordisk, Jun 18, 2026
Ozempic elimination half-lifeAbout 1 weekNovo Nordisk, Jun 1, 2026
Wegovy elimination half-lifeAbout 1 weekNovo Nordisk, Jun 18, 2026
Ozempic tablets1.5, 4, 9 mg once dailyNovo Nordisk, Jan 30, 2026
Wegovy tablets1.5, 4, 9, 25 mg once dailyNovo Nordisk, Jun 18, 2026
Using them togetherWegovy label: use with other semaglutide products or any other GLP-1 agonist is not recommendedNovo Nordisk, Jun 18, 2026
Ozempic-to-Wegovy conversionNone given; the Wegovy label does not mention OzempicNovo Nordisk, Jun 18, 2026

Ozempic and Wegovy are two brand names for one molecule. Both labels name semaglutide, a GLP-1 receptor agonist made by Novo Nordisk, and both describe an elimination half-life of about 1 week (Novo Nordisk, Jun 1, 2026) (Novo Nordisk, Jun 18, 2026). What differs is everything FDA approved around it: who it is for, how high the dose goes, which pens deliver it and the missed-dose rule. For the molecule itself, see the semaglutide hub. This is a reference, not a plan: talk to your prescriber before starting, changing or switching.

Side-by-side comparison table

Ozempic vs Wegovy, label facts as of Oct 21, 2026
ItemOzempicWegovy
Active ingredientSemaglutideSemaglutide
First FDA approvalDec 5, 2017Jun 4, 2021
Main useType 2 diabetesWeight reduction
WhoAdultsAdults; ages 12 and older for weight
Starting dose0.25 mg weekly for 4 weeks0.25 mg weekly for 4 weeks
Maintenance doses0.5, 1 or 2 mg1.7 or 2.4 mg (2.4 mg recommended); optional 7.2 mg
Maximum weekly dose2 mg7.2 mg (Wegovy HD, adults, weight only)
Missed dose windowWithin 5 daysIf next dose is more than 2 days away
Injection devicesMulti-dose pens; single-dose syringesSingle-dose pens and syringes; FlexTouch multi-dose pen
Daily tabletOzempic tablets, 1.5 to 9 mgWegovy tablets, 1.5 to 25 mg

Sources: (Novo Nordisk, Jun 1, 2026) (Novo Nordisk, Jun 18, 2026) (FDA, Oct 19, 2026) (FDA, Oct 19, 2026) (Novo Nordisk, Jan 30, 2026)

We quote Ozempic SPL version 20, published Jun 10, 2026 (DailyMed, Jun 10, 2026), and the Wegovy label revised 6/2026, both still current on DailyMed on Oct 21, 2026.

Indications: who each label covers

The clearest difference is the population. Every Ozempic indication involves adults with type 2 diabetes. Wegovy’s indications are built around weight, heart risk and liver disease, and none requires diabetes.

FDA-labeled indications for the injections
UseOzempicWegovy
Improve glycemic control in adults with type 2 diabetes (with diet and exercise)YesNo
Lower risk of major cardiovascular events in adults with type 2 diabetes and established heart diseaseYesNo
Lower risk of eGFR decline, kidney failure and cardiovascular death in type 2 diabetes with chronic kidney diseaseYesNo
Reduce excess body weight and keep it off, adultsNoYes
Weight reduction, ages 12 and older with obesityNoYes
Lower risk of major cardiovascular events in adults with heart disease and obesity or overweightNoYes (approved Mar 8, 2024)
Noncirrhotic MASH with moderate to advanced fibrosis (F2–F3), adultsNoYes (accelerated approval, Aug 15, 2025)

Sources: (Novo Nordisk, Jun 1, 2026) (Novo Nordisk, Jun 18, 2026) (FDA, Mar 8, 2024) (Novo Nordisk, Aug 15, 2025)

The Ozempic Medication Guide says it is not known if Ozempic is safe and effective in children (Novo Nordisk, Jun 1, 2026). The Wegovy MASH approval is accelerated, which means continued approval may depend on a confirmatory trial (Novo Nordisk, Jun 18, 2026) (FDA, Aug 15, 2025). Because the labeled uses differ, the diagnosis on a prescription is what points to one brand or the other.

Dose ladders side by side

Both injections start at 0.25 mg once weekly for 4 weeks and step to 0.5 mg. After that they part ways. Ozempic moves up only when more blood-sugar control is needed. Wegovy follows a fixed 4-week escalation to 2.4 mg.

Injection ladders at the earliest pace each label allows
WeeksOzempicWegovy
1–40.25 mg (start)0.25 mg (start)
5–80.5 mg (first maintenance option)0.5 mg
9–121 mg, if more glycemic control is needed1 mg
13–162 mg (maximum), if needed after ≥4 weeks on 1 mg1.7 mg (maintenance option)
17 onward2 mg2.4 mg (recommended maintenance)
OptionalNone7.2 mg after ≥4 weeks on 2.4 mg, if more weight reduction is clinically indicated (adults, weight only)

Sources: (Novo Nordisk, Jun 1, 2026) (Novo Nordisk, Jun 18, 2026)

Ozempic’s week numbers are the earliest possible starts, not a calendar. For type 2 diabetes with chronic kidney disease, the Ozempic label sets one target: 1 mg once weekly after at least 4 weeks on 0.5 mg. Wegovy’s label says to consider delaying a step by 4 weeks if a dose is not tolerated, and its 1.7 mg and 2.4 mg steps have no Ozempic equivalent. Wegovy HD 7.2 mg was approved on Mar 19, 2026, 54 days after filing (FDA, Mar 19, 2026).

Semaglutide, Ozempic label ladder to 2 mg: dose steps and modeled relative amountWeekly doses of 0.25 mg, 0.5 mg, 1 mg, 2 mg, 4 weeks per step, final step held 12 weeks. Modeled amount peaks at 3.56 mg-equivalents. Model: one-compartment, half-life 7 days.stable window01.252.53.755mg-eq0481216202428weeks from start0.25 mg0.5 mg1 mg2 mg
  • Weekly dose (published steps)
  • Modeled amount (mg-eq)
  • Stable window
Ozempic prescribing information: 0.25 mg for 4 weeks, then 0.5 mg, with increases to 1 mg and 2 mg after at least 4 weeks each. Ladder as published by Novo Nordisk (Jun 1, 2026); curve is a modeled relative amount (t½ 7 days), not plasma concentration. Reported as published, not a recommendation.
Semaglutide, Wegovy label ladder to 2.4 mg: dose steps and modeled relative amountWeekly doses of 0.25 mg, 0.5 mg, 1 mg, 1.7 mg, 2.4 mg, 4 weeks per step, final step held 12 weeks. Modeled amount peaks at 4.28 mg-equivalents. Model: one-compartment, half-life 7 days.stable window01.252.53.755mg-eq048121620242832weeks from start0.25 mg0.5 mg1 mg1.7 mg2.4 mg
  • Weekly dose (published steps)
  • Modeled amount (mg-eq)
  • Stable window
Wegovy prescribing information: 0.25 → 0.5 → 1 → 1.7 → 2.4 mg, each step 4 weeks. Ladder as published by Novo Nordisk (Jun 18, 2026); curve is a modeled relative amount (t½ 7 days), not plasma concentration. Reported as published, not a recommendation.

The charts show a modeled relative amount on board (7-day half-life, weekly accumulation ratio 2.0), not a blood level. Put your own start date on either ladder with the semaglutide titration calculator, or overlay the two in the semaglutide plotter. Step-by-step detail is in the Ozempic dosing schedule and the Wegovy dosing schedule.

Pens, syringes and strengths

Injection presentations in label sections 3 and 16
PresentationOzempicWegovy
Multi-dose pen, starting doses2 mg/3 mL: 4 doses of 0.25 mg and 2 of 0.5 mg, or 4 doses of 0.5 mgNone
Multi-dose pen, higher doses4 mg/3 mL: four 1 mg doses; 8 mg/3 mL: four 2 mg dosesFlexTouch 9.6 mg/3 mL: four 2.4 mg doses
Single-dose pensNone0.25, 0.5, 1 mg (0.5 mL); 1.7, 2.4, 7.2 mg (0.75 mL)
Single-dose syringes0.25, 0.5, 1 mg per 0.5 mL0.25 to 2.4 mg
In-use or out-of-fridge limitPen: 56 days after first use; single-dose syringe: up to 28 days at 8–30 °CSingle-dose pen: up to 28 days at 8–30 °C; FlexTouch: 56 days after first use

Sources: (Novo Nordisk, Jun 1, 2026) (Novo Nordisk, Jun 18, 2026)

Both labels list the abdomen, thigh or upper arm as injection sites and say a pen “must never be shared between patients, even if the needle is changed” (Ozempic pens; Wegovy FlexTouch). Neither injection may be frozen. Count the 28-day and 56-day windows with the semaglutide storage calculator.

Tablets: the Wegovy pill and Ozempic tablets

Each brand now has a separate once-daily tablet.

Daily semaglutide tablets by brand
ItemOzempic tabletsWegovy tablets
LabelCombined Rybelsus and Ozempic tablets label (revised 1/2026)Combined Wegovy label (revised 6/2026)
IndicationsGlycemic control in adults with type 2 diabetes; CV risk reduction in those at high risk for these eventsWeight reduction and CV risk reduction in adults
Strengths1.5, 4, 9 mg1.5, 4, 9, 25 mg
Ladder1.5 mg days 1–30; 4 mg days 31–60; then 4 mg or 9 mg1.5, 4, 9 mg for 30 days each; 25 mg from day 91
Missed doseSkip; take the next dose the following daySkip; take the next dose the following day

Sources: (Novo Nordisk, Jan 30, 2026) (Novo Nordisk, Jun 18, 2026)

The Ozempic tablets label says the 1.5 mg starting dose “is not effective for glycemic control,” and that Rybelsus and Ozempic tablets are not substitutable on a mg-to-mg basis (Novo Nordisk, Jan 30, 2026). The Wegovy pill was approved on Dec 22, 2025 (Novo Nordisk, Dec 22, 2025). Only about 1% to 2% of a tablet dose is absorbed, compared with 89% for the injection (Novo Nordisk, Jun 18, 2026). Tablet doses are much larger in milligrams.

Half-life and time in the body

Pharmacokinetics from section 12.3 of each injection label
MeasureOzempic labelWegovy label
Absolute bioavailability89%89%
Time to peak1 to 3 days1 to 3 days
Elimination half-lifeAbout 1 weekAbout 1 week
Time to steady state4 to 5 weeks of weekly dosingNot stated
Still in circulation after last doseAbout 5 weeksAbout 5 to 7 weeks after 2.4 mg or 7.2 mg

Sources: (Novo Nordisk, Jun 1, 2026) (Novo Nordisk, Jun 18, 2026)

The Wegovy figure refers to its 2.4 mg and 7.2 mg doses, both above any Ozempic dose.

Missed doses and changing the day

The same drug carries two different missed-dose rules.

Missed weekly injection rules (Ozempic section 2.1; Wegovy section 2.4)
SituationOzempicWegovy
Dose missed, remembered soonGive as soon as possible within 5 daysGive as soon as possible if the next dose is more than 2 days away
Remembered lateAfter 5 days, skip and resume on the regular dayLess than 2 days to the next dose: skip and resume on the regular day
2 or more doses in a row missedNo separate rule in the labelRestart escalation at a lower dose
Changing the weekly dayAllowed if doses are at least 2 days (more than 48 hours) apartPatient information: allowed if the last dose was 2 or more days before

Sources: (Novo Nordisk, Jun 1, 2026) (Novo Nordisk, Jun 18, 2026)

Example with a Sunday dose day: remembering on Wednesday is 3 days late. Ozempic’s 5-day window says take it; Wegovy’s rule also says take it, because Sunday is 4 days away. Remembering on Saturday, the Ozempic dose is 6 days late and skipped, and the Wegovy dose is skipped because Sunday is less than 2 days away.

Trials behind each label

The Wegovy weight rows below come from trials that excluded diabetes (STEP 1, Studies 7 and 8); the label also has separate weight trials in type 2 diabetes. The rows come from different trials with different populations, durations and analyses, so they cannot be compared directly.

Selected Wegovy results (each row is its own trial; different analyses)
TrialLengthSemaglutide armPlaceboAnalysis
STEP 1, weight68 weeks−14.9% (2.4 mg)−2.4%Treatment-policy estimand
Label Study 8, weight72 weeks−18.8% (7.2 mg); −15.5% (2.4 mg)−3.9%Intention-to-treat, LS mean
Label Study 7, weight64 weeks−13.6% (25 mg tablet)−2.4%Intention-to-treat, LS mean
SELECT, major CV eventsMean 39.8 months6.5% (2.4 mg)8.0%Hazard ratio 0.80

Sources: (New England Journal of Medicine, Mar 18, 2021) (Novo Nordisk, Jun 18, 2026) (New England Journal of Medicine, Dec 14, 2023)

The treatment-policy estimand counts everyone randomized, whether or not they stayed on the drug. In STEP 1, 50.5% on semaglutide lost at least 15% of body weight at 68 weeks vs 4.9% on placebo (New England Journal of Medicine, Mar 18, 2021). The MASH approval rested on ESSENCE part 1, where 36.8% on Wegovy vs 22.4% on placebo had improved fibrosis without worsening steatohepatitis at 72 weeks (Novo Nordisk, Aug 15, 2025). Our sources hold no weight-loss trial of Ozempic in people without diabetes, so we do not quote one.

Side effects in each label

Both labels list nausea, vomiting, diarrhea, abdominal pain and constipation among the most common reactions.

Nausea, vomiting and diarrhea in each label’s placebo-controlled pool (different trials and populations)
ReactionOzempic 0.5 mgOzempic 1 mgWegovy 2.4 mgPlacebo (Ozempic / Wegovy pool)
Nausea15.8%20.3%44%6.1% / 16%
Vomiting5%9.2%24%2.3% / 6%
Diarrhea8.5%8.8%30%1.9% / 16%

Sources: (Novo Nordisk, Jun 1, 2026) (Novo Nordisk, Jun 18, 2026)

The Ozempic pool comes from two trials in adults with type 2 diabetes; the Wegovy pool covers three weight trials of up to 68 weeks. In the Wegovy pool, 6.8% on 2.4 mg vs 3.2% on placebo stopped treatment permanently because of adverse reactions (Novo Nordisk, Jun 18, 2026).

Can you switch between them?

What the labels say, and leave out:

  • Not together. The Wegovy label says using it with other semaglutide-containing products or with any other GLP-1 receptor agonist is not recommended (Novo Nordisk, Jun 18, 2026). Ozempic is a semaglutide-containing product.
  • No brand-to-brand conversion. Neither injection label gives a dose conversion or a switching schedule between Ozempic and Wegovy.
  • Switches the labels do describe. Wegovy: one week after the last 2.4 mg injection, start 25 mg Wegovy tablets (Novo Nordisk, Jun 18, 2026). Ozempic: one week after stopping the 0.5 mg injection, start 4 mg or 9 mg Ozempic tablets (Novo Nordisk, Jan 30, 2026). Each stays within one brand.

A move from one brand to the other is a new prescription for a different labeled use. Your prescriber decides the starting dose and timing, so talk to your prescriber rather than matching milligrams on your own.

Coverage and savings programs

Both brands have a Novo Nordisk copay savings offer for people whose commercial insurance covers that specific brand, and both offers exclude government beneficiaries such as Medicare and Medicaid enrollees (Novo Nordisk, Oct 19, 2026) (Novo Nordisk, Oct 19, 2026). The Ozempic offer is valid for up to 48 months; the Wegovy terms state no end date. Novo’s Medicare GLP-1 Bridge, running Jul 1, 2026 to Dec 31, 2027, covers Wegovy pen and pill for eligible beneficiaries; the pages we reviewed do not list Ozempic in it (Novo Nordisk, Jul 1, 2026) (Novo Nordisk, Oct 19, 2026).

Prices and fine print are on the Ozempic savings card guide and the Wegovy savings card guide. Ask your plan which brand it covers for your diagnosis.

Compounded semaglutide

Semaglutide injections were on FDA’s drug shortage list from March 2022 (Wegovy) and August 2022 (Ozempic). FDA declared the shortage resolved on Feb 21, 2025 (FDA, Feb 21, 2025). FDA states that “Compounded drugs are not approved by FDA” (FDA, Apr 1, 2026). Compounded semaglutide is not interchangeable with either brand, and neither label’s doses, pens or missed-dose rules apply to it.

Frequently asked questions

What is the difference between Ozempic and Wegovy?

Both are semaglutide from Novo Nordisk, but they are separate FDA-approved products. Ozempic is labeled for adults with type 2 diabetes, with weekly maintenance doses of 0.5, 1 or 2 mg. Wegovy is labeled for weight reduction (adults and ages 12 and older), cardiovascular risk reduction with obesity or overweight, and noncirrhotic MASH, with a recommended 2.4 mg maintenance dose and an optional 7.2 mg (Wegovy HD). Pens, missed-dose rules and tablets also differ.

Is Ozempic the same as Wegovy?

The active ingredient is the same: semaglutide, with a half-life of about 1 week. The products are not. They have different approved uses, different dose ladders (Ozempic tops out at 2 mg weekly, Wegovy at 2.4 mg or 7.2 mg), different pens and different missed-dose windows (5 days for Ozempic, a 2-day rule for Wegovy). Talk to your prescriber.

Can you take Ozempic for weight loss?

Weight reduction is not one of the uses in the Ozempic label. Its three indications all involve adults with type 2 diabetes. The label does say semaglutide lowers blood glucose and reduces body weight, but the semaglutide product that FDA approved for chronic weight management is Wegovy, first approved on Jun 4, 2021. Whether any medicine is right for weight loss is a decision for you and your prescriber.

Which is stronger, Ozempic or Wegovy?

They are the same molecule, so the difference is the dose. Ozempic's maximum is 2 mg once weekly. Wegovy's recommended maintenance dose is 2.4 mg, and adults on the weight indication who tolerate 2.4 mg for at least 4 weeks, when additional weight reduction is clinically indicated, may go to 7.2 mg (Wegovy HD). A higher label dose is not the same as a better result for a given person, and we found no trial in our sources that compared the two brands head to head.

Can you switch from Ozempic to Wegovy?

Neither the Ozempic nor the Wegovy injection label gives a conversion or a switching schedule between the two brands. The Wegovy label says using it with other semaglutide-containing products or any other GLP-1 receptor agonist is not recommended, so they are not taken together. A switch means a new prescription, and your prescriber decides the starting dose and timing. Talk to your prescriber before changing anything.

Sources

  1. OZEMPIC (semaglutide) injection, for subcutaneous use - Full Prescribing Information (SPL). Novo Nordisk / National Library of Medicine DailyMed, Jun 1, 2026. Accessed Oct 19, 2026.
  2. WEGOVY (semaglutide) injection, for subcutaneous use; WEGOVY (semaglutide) tablets, for oral use - Full Prescribing Information (SPL, Revised 6/2026). Novo Nordisk / National Library of Medicine DailyMed, Jun 18, 2026. Accessed Oct 19, 2026.
  3. RYBELSUS (semaglutide) tablets and OZEMPIC (semaglutide) tablets, for oral use - Full Prescribing Information (SPL version 14, Revised 1/2026). Novo Nordisk / National Library of Medicine DailyMed, Jan 30, 2026. Accessed Oct 21, 2026.
  4. Drugs@FDA record NDA209637 (OZEMPIC semaglutide injection) - submissions history. U.S. Food and Drug Administration (openFDA Drugs@FDA API), Oct 19, 2026. Accessed Oct 19, 2026.
  5. Drugs@FDA record NDA215256 (WEGOVY semaglutide injection) - submissions history. U.S. Food and Drug Administration (openFDA Drugs@FDA API), Oct 19, 2026. Accessed Oct 19, 2026.
  6. OZEMPIC (semaglutide) injection SPL version history (setid adec4fd2-6858-4c99-91d4-531f5f2a2d79), DailyMed web services. National Library of Medicine DailyMed, Jun 10, 2026. Accessed Oct 19, 2026.
  7. FDA Approves First Treatment to Reduce Risk of Serious Heart Problems Specifically in Adults with Obesity or Overweight. U.S. Food and Drug Administration, Mar 8, 2024. Accessed Oct 19, 2026.
  8. Novo Nordisk A/S: Wegovy® approved in the US for the treatment of MASH. Novo Nordisk A/S, Aug 15, 2025. Accessed Oct 19, 2026.
  9. FDA Approves Treatment for Serious Liver Disease Known as 'MASH'. U.S. Food and Drug Administration, Aug 15, 2025. Accessed Oct 19, 2026.
  10. FDA Approves Oral Wegovy® Pill. Novo Nordisk Inc. (US), Dec 22, 2025. Accessed Oct 19, 2026.
  11. FDA Approves Fourth Product Under National Priority Voucher Program, Higher Dose Semaglutide. U.S. Food and Drug Administration, Mar 19, 2026. Accessed Oct 19, 2026.
  12. Once-Weekly Semaglutide in Adults with Overweight or Obesity. New England Journal of Medicine (Wilding JPH et al.; PMID 33567185), Mar 18, 2021. Accessed Oct 19, 2026.
  13. Semaglutide and Cardiovascular Outcomes in Obesity without Diabetes. New England Journal of Medicine (Lincoff AM et al.; PMID 37952131), Dec 14, 2023. Accessed Oct 19, 2026.
  14. Save on Ozempic® (ozempic.com savings and resources). Novo Nordisk (ozempic.com), Oct 19, 2026. Accessed Oct 19, 2026.
  15. Wegovy® Savings Offer - Eligibility and Restrictions / Offer Details (WegovyTerms.com). Novo Nordisk (NovoCare), Oct 19, 2026. Accessed Oct 19, 2026.
  16. Wegovy® Cost & Coverage Information | Wegovy® (semaglutide). Novo Nordisk (wegovy.com), Oct 19, 2026. Accessed Oct 19, 2026.
  17. Wegovy® Medicare GLP-1 Bridge Access. Novo Nordisk Inc. (US), Jul 1, 2026. Accessed Oct 19, 2026.
  18. Declaratory Order: Resolution of Shortages of Semaglutide Injection Products (Ozempic and Wegovy). U.S. Food and Drug Administration, Feb 21, 2025. Accessed Oct 19, 2026.
  19. FDA clarifies policies for compounders as national GLP-1 supply begins to stabilize. U.S. Food and Drug Administration, Apr 1, 2026. Accessed Oct 19, 2026.