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GLP-1 injection vs. dissolving tablet: which should you choose?
Quick answer
GLP-1 injections are taken once a week and are the most studied form. Dissolving tablets (ODTs) are taken daily and avoid needles.
Only a small amount of semaglutide is absorbed when taken by mouth, which is why FDA-approved oral semaglutide uses much higher doses than injections. Compounded dissolving tablets have not been studied in large clinical trials.
At Surna, semaglutide starts at $129/mo as an injection and $109/mo as a tablet. Tirzepatide starts at $219/mo as an injection and $139/mo as a tablet.
Updated · Sources below
Side by side
| Feature | Injection | Dissolving tablet (ODT) |
|---|---|---|
| How often | Once a week | Once a day |
| Needles | A small needle under the skin | None |
| How it’s absorbed | Directly under the skin | Through your mouth and digestive tract |
| Research | Large trials of FDA-approved injections | Compounded tablets not studied in large trials |
| Routine | Same day each week, any time | Daily, following the timing on your label |
| Semaglutide at Surna | from $129/mo | from $109/mo |
| Tirzepatide at Surna | from $219/mo | from $139/mo |
Which is right for you?
Your provider makes the final call based on your health history.
Choose Injection if
- You want the most studied form
- You’d rather take something once a week
- You’re comfortable with a small needle
Choose Dissolving tablet (ODT) if
- You’d rather avoid needles
- A daily routine is easier for you
- You want semaglutide at its lowest quarterly price
Why form matters
GLP-1 medications are peptides, and much of a peptide taken by mouth is broken down before it reaches your bloodstream. Injections skip that step. FDA-approved oral semaglutide solves this with much higher doses and strict rules about taking it on an empty stomach.
What the research covers
The large weight loss trials of semaglutide and tirzepatide used weekly injections. FDA-approved oral semaglutide has its own studies. Compounded dissolving tablets have not been studied in large clinical trials, so how well they work compared with injections is not established.
Choosing a routine
A weekly injection is one task a week. A daily tablet is a small daily habit with timing rules. The best form is usually the one you’ll take consistently, and your provider can switch you if one doesn’t work well.
Questions, answered
Is the dissolving tablet as effective as the injection?
That hasn’t been established. Compounded dissolving tablets haven’t been studied in large clinical trials, and oral doses aren’t directly interchangeable with injected doses.
Can I switch from injections to tablets, or back?
Yes, with your provider. They’ll choose a new starting dose, since doses don’t convert one-to-one.
Are GLP-1 tablets FDA-approved?
Some are: FDA-approved oral semaglutide is available as Rybelsus® for type 2 diabetes and as the Wegovy® pill for weight management. Compounded dissolving tablets are not FDA-approved.
Sources
- DailyMed. Oral semaglutide prescribing information. Source
- Wilding JPH, et al. Once-Weekly Semaglutide in Adults with Overweight or Obesity (STEP 1). N Engl J Med. 2021;384:989-1002. Source
- Jastreboff AM, et al. Tirzepatide Once Weekly for the Treatment of Obesity (SURMOUNT-1). N Engl J Med. 2022;387:205-216. Source
- U.S. Food and Drug Administration. Compounding and the FDA: questions and answers. Source
This page is general information, not medical advice. A licensed provider will determine whether treatment is appropriate for you. Individual results vary. Wegovy®, Ozempic®, and Rybelsus® are registered trademarks of Novo Nordisk; Zepbound® and Mounjaro® of Eli Lilly and Company; Viagra® of Viatris; Cialis® of Eli Lilly and Company. Surna Health is not affiliated with these companies.
Not sure which? Let a provider help.
Answer a few questions and a licensed provider will recommend the option that fits you.
Start your assessmentImportant safety information
GLP-1 medications may cause thyroid C-cell tumors, including medullary thyroid carcinoma, based on studies in rodents; it is unknown whether this happens in people. Do not use if you or a family member has had medullary thyroid carcinoma or if you have MEN 2. Other serious risks include pancreatitis, gallbladder problems, low blood sugar when used with other diabetes medicines, kidney problems from dehydration, serious allergic reactions, increased heart rate, and changes in vision for people with diabetic retinopathy. Watch for changes in mood or thoughts of self-harm and tell your provider right away.
This is not a complete list of risks. Talk with your provider and read the full prescribing information or medication guide. Full safety information.