Beginner Guide
    GLP-1

    GLP-1 Medications: A Beginner's Guide to Semaglutide and Tirzepatide

    An introduction to treatment options and the questions to discuss with a licensed provider before starting.

    Editorial update: •Written by Trimi Editorial Team

    Trimi Health publishes this guide and offers compounded semaglutide and compounded tirzepatide. Plan and process sources checked October 29, 2026 (UTC); this is an editorial update, not a clinical review.

    Starting GLP-1 treatment requires an individual review by a licensed provider. Trimi offers compounded semaglutide and compounded tirzepatide when prescribed. Choosing a treatment or completing an assessment does not mean it will be prescribed. Compounded medications are not FDA-approved; they should not be treated as equivalent to an FDA-approved brand product.

    The FDA explains the distinction and concerns with unapproved GLP-1 drugs. For Trimi's current treatment details, review compounded semaglutide or compounded tirzepatide before completing your assessment.

    What You'll Learn in This Guide

    • • What GLP-1 medications are and how they work
    • • The difference between semaglutide and tirzepatide
    • • Common brand names explained (Ozempic, Wegovy, Mounjaro, etc.)
    • • What clinical trial results can and cannot tell you
    • • Questions about side effects and follow-up care
    • • Costs and billing terms
    • • How a provider assesses treatment options
    • • How to get started with treatment

    What Are GLP-1 Medications?

    GLP-1 stands for glucagon-like peptide-1. Semaglutide activates the GLP-1 receptor. Tirzepatide activates both the GIP and GLP-1 receptors. These medicines affect appetite and blood-sugar regulation, but they are different medicines with their own prescribing information.

    The STEP 1 semaglutide trial and SURMOUNT-1 tirzepatide trial describe the medicines studied. A licensed provider should explain the specific prescription, its risks and how to use it.

    Understanding the Brand Names

    The medication landscape can be confusing because the same drugs have different brand names for different uses. Here are several names you may encounter:

    Semaglutide Products

    Wegovy

    A prescription semaglutide brand. Ask your provider about the current prescribing information and whether it is appropriate for you.

    Ozempic

    A prescription semaglutide brand used in diabetes care. Its indication and dosing should be discussed with your provider.

    Rybelsus

    An oral semaglutide brand used in diabetes care. Trimi offers compounded injections, not this branded product.

    Tirzepatide Products

    Zepbound

    A prescription tirzepatide brand. Ask your provider about its current indications and prescribing information.

    Mounjaro

    A prescription tirzepatide brand used in diabetes care. Brand names, indications and prescriptions are not interchangeable.

    Semaglutide vs Tirzepatide: Key Differences

    The biggest question beginners have is: which medication is better? Read our comparison of tirzepatide vs semaglutide.

    A licensed provider reviews your health history, current medicines and treatment goals to decide whether to prescribe. You may express a treatment preference, but a comparison table cannot determine which medicine is suitable for you. Ask about the benefits, risks and follow-up plan for the specific prescription being considered.

    How GLP-1 Medications Actually Work

    These medicines act on pathways involved in appetite and blood-sugar regulation. Ask your provider how these effects relate to the medicine prescribed for you:

    Brain

    GLP-1 receptor activity can reduce appetite. Changes in hunger vary, and an article cannot predict your response.

    Stomach

    These medicines can slow stomach emptying. Discuss symptoms and any concerns about digestion with your provider.

    Pancreas

    These medicines affect insulin and glucagon, hormones involved in blood-sugar regulation. Tell your provider about all medicines you take.

    What Results Can You Expect?

    Published trial averages describe specific study populations, doses and follow-up periods. In STEP 1, participants receiving semaglutide 2.4 mg had a mean body-weight reduction of 14.9% at 68 weeks. In SURMOUNT-1, the tirzepatide 15 mg group had a mean body-weight reduction of 20.9% at 72 weeks. These were separate trials, not a head-to-head comparison, and they did not test Trimi's compounded products.

    Read the original STEP 1 semaglutide study and SURMOUNT-1 tirzepatide study. Individual results vary. These averages do not predict your result or establish equivalence between compounded and FDA-approved products.

    Discuss Side Effects and Follow-Up Before Starting

    Ask your provider about the risks of the specific medicine prescribed, what symptoms to report and how to contact the care team. Your prescription instructions and provider's advice determine your dose and any changes. This guide does not set a dose-increase schedule or replace an individual clinical assessment.

    Review Trimi's important safety information and bring your questions to your provider. For further reading, see our semaglutide side effects guide and tirzepatide side effects guide.

    What is Trimi?

    Trimi Health (trytrimi.com) is a US telehealth service founded in May 2024 and operated by TRYTRIMI LLC. It offers compounded semaglutide and compounded tirzepatide when a licensed provider prescribes them: providers in Arora Health's 50-state network review each assessment, and BelieveRx, a Texas-licensed 503A pharmacy (license #35264), prepares prescriptions. Trimi has a commercial relationship with BelieveRx. Trimi Health and TrimRx are separate, unaffiliated companies.

    How Much Does a GLP-1 Cost at Trimi?

    Compounded semaglutide is $175 billed monthly or $99 a month equivalent on the annual plan ($1,188 upfront, 12-month commitment). Compounded tirzepatide is $235 billed monthly or $125 a month equivalent on the annual plan ($1,500 upfront, 12-month commitment). Every plan is the same price at every prescribed dose and includes medication if prescribed, injection supplies, provider access and shipping, with no separate enrollment, consultation, membership or shipping fee.

    Trimi main-catalog plan charges. An annual plan is a 12-month commitment.
    PlanCompounded semaglutideCompounded tirzepatide
    Monthly$175 billed monthly$175 a month$235 billed monthly$235 a month
    Quarterly, 3-month commitment$435 billed every 3 months$145 a month equivalent$597 billed every 3 months$199 a month equivalent
    6-month, 6-month commitment$720 billed upfront$120 a month equivalent$1,050 billed upfront$175 a month equivalent
    Annual, 12-month commitment$1,188 billed upfront$99 a month equivalent$1,500 billed upfront$125 a month equivalent

    Main-catalog prices checked October 29, 2026 (UTC). Review the selected agreement and renewal terms before purchasing.

    If the provider determines treatment is not appropriate, the order is refunded in full. The 6-month money-back policy has one qualifying path: complete six continuous months on an active, paid prescribed plan, take the medication as directed, complete provider check-ins, and log a starting weight and a six-month weight in the patient portal. If there is no net weight loss between those logged weigh-ins, Trimi refunds the plan fees paid over those six months. Request it within 30 days of the six-month mark through the contact page; one claim per patient. Stopping early or dissatisfaction alone does not qualify. Results vary. This is a commercial commitment, not a medical guarantee or a promise of a treatment outcome. Read every condition in the refund policy. Trimi does not bill insurance; see the pricing guide for payment information.

    Should you start with one month?

    A monthly plan costs more per month but has no multi-month commitment. Prepaid plans cost less per month and are billed upfront for the whole term. Choose a payment commitment you understand; choosing a plan does not determine whether a provider will prescribe.

    Review the semaglutide plan options and tirzepatide plan options for the full terms.

    How Is Eligibility Decided?

    A licensed provider determines eligibility individually after reviewing your assessment and may request additional information. Selecting semaglutide or tirzepatide does not establish eligibility or guarantee a prescription. Discuss your medical history, current medications and treatment goals with the provider.

    How to Start GLP-1 Treatment Online with Trimi

    1. Complete the online assessment. It takes about 5 to 10 minutes and covers your health history, current medicines and goals. You must be a US resident aged 18 or older.
    2. Choose your requested medication and plan. Review compounded semaglutide or compounded tirzepatide, the full charge and the terms at checkout. If the provider determines treatment is not appropriate, the order is refunded in full under the refund policy.
    3. A licensed provider reviews your assessment. A provider in Arora Health's network typically reviews it within 12 to 24 hours and may ask for more information. A prescription is not assured.
    4. The pharmacy prepares medication if prescribed. BelieveRx, a 503A compounding pharmacy licensed in Texas under #35264, prepares your prescription. Trimi has a commercial relationship with BelieveRx. Medication ships free overnight once compounded, with Hawaii excluded from overnight shipping. Signup to delivery typically takes 2 to 4 days; timing can vary.
    5. Use the patient portal for ongoing care. Message your care team, request refills and dose reviews, and schedule a video check-in at no extra cost when you or your provider want one. Your provider decides any treatment change.

    The traditional route: see a primary care doctor or specialist, check whether insurance covers the medicine and requires prior authorization, then fill the prescription at a pharmacy.

    Start a clinician-guided program

    New to GLP-1s? Begin with a licensed provider, not guesswork

    Trimi connects you with a licensed provider who reviews your eligibility and, if appropriate, prescribes compounded semaglutide or compounded tirzepatide. Review the plan commitment, amount due and policy terms before enrolling. Compounded medications are not FDA-approved, and results vary by person.

    Check your eligibility

    What does compounded mean?

    Compounded semaglutide or tirzepatide is prepared by a state-licensed pharmacy for your individual prescription, and it is not FDA-approved. It is also not a generic: generics go through FDA review before approval, while FDA does not review compounded drugs for safety, effectiveness or quality before they are marketed.

    Dr. Sean Arora, MD, Provider, Arora Health (Trimi's clinical partner)

    Approved by Dr. Sean Arora, MD on

    What to Expect Your First Month

    Before your first dose, confirm that you understand the prescription instructions and how to reach your provider. Ask how follow-up works, what information the provider needs and what to do if you have questions about your medication or symptoms. Do not use an online timeline to change your dose or judge whether treatment is working for you.

    Our first-month guide offers additional questions to discuss with your provider. Your own care plan remains individual.

    I tell new patients the first month on a GLP-1 is for getting used to it, not for judging it. If nausea comes, eat smaller meals, stop when you feel full and go easy on greasy food. If you can't keep fluids down, contact your care team promptly or seek urgent care.

    Dr. Sean Arora, MD, Provider, Arora Health (Trimi's clinical partner)

    Approved by Dr. Sean Arora, MD on

    Your Next Step

    Use this guide to prepare for a conversation, not to self-prescribe. Compare the treatment information, billing terms and support available, then complete an assessment if you want a licensed provider to review your situation.

    Ready to Start Your GLP-1 Journey?

    Start an assessment and ask a licensed provider about your treatment options and follow-up care.

    Get Started Today

    Sources & References

    1. Wilding JPH et al. STEP 1. New England Journal of Medicine, 2021.
    2. Jastreboff AM et al. SURMOUNT-1. New England Journal of Medicine, 2022.
    3. FDA: Concerns with Unapproved GLP-1 Drugs Used for Weight Loss. Accessed October 29, 2026 (UTC).
    4. FDA: Compounding and the FDA, Questions and Answers. Accessed October 29, 2026 (UTC).
    5. ZEPBOUND (tirzepatide) prescribing information, DailyMed, revised August 2026. Accessed October 29, 2026 (UTC).
    6. WEGOVY (semaglutide) prescribing information, DailyMed. Accessed October 29, 2026 (UTC).
    7. FDA alerts health care providers, compounders and patients of dosing errors associated with compounded injectable semaglutide products. Accessed October 29, 2026 (UTC).
    8. Texas State Board of Pharmacy: public license search. Accessed October 29, 2026 (UTC).
    9. Trimi main-catalog billing terms and refund policy.

    Medical Disclaimer: This content is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare provider before starting any medication or treatment program.

    What to expect in your first month on a GLP-1

    The first month is a low-dose starting period meant to let your body adjust, not to reach the full effect. The FDA prescribing information for injectable Wegovy and Zepbound describes starting treatment at a low dose and increasing only under the prescribed schedule. Common side effects include nausea, diarrhea, constipation, vomiting and stomach discomfort. A compounded prescription follows your provider's instructions and your pharmacy label.

    Get medical help right away for severe stomach pain that will not go away, with or without vomiting; upper-right stomach pain, fever or yellowing of the skin or eyes; vomiting or diarrhea that prevents you from keeping fluids down; or swelling of the face, lips or throat, or trouble breathing. In an emergency, call 911.

    If side effects make it hard to eat or drink, contact your care team through the portal. Your provider decides whether to keep, pause or change the dose. Follow the pharmacy label and your provider's instructions.

    GLP-1 medications are prescription medicines that act on gut-hormone receptors involved in appetite, fullness and blood sugar. Semaglutide activates the GLP-1 receptor, and tirzepatide activates both the GIP and GLP-1 receptors. FDA-approved semaglutide brands include Wegovy and Ozempic, and FDA-approved tirzepatide brands include Zepbound and Mounjaro. Their injectable forms are taken once a week, starting at a low dose under the prescribed schedule.

    Trimi offers compounded semaglutide and compounded tirzepatide when a licensed provider prescribes them. Compounded medications are not FDA-approved and are not Wegovy, Ozempic, Zepbound or Mounjaro.

    What does compounded semaglutide or tirzepatide mean?

    A compounded medication is prepared by a state-licensed pharmacy for an individual patient's prescription instead of being manufactured and sold as an FDA-approved product. Compounded semaglutide and compounded tirzepatide are not FDA-approved: FDA does not review compounded drugs for safety, effectiveness or quality before marketing. A patient-specific prescription alone does not remove the restrictions on drugs that are essentially copies of commercially available drugs; where applicable, the prescriber must determine and document a change that produces a significant difference for an identified individual patient.

    Follow your dispensing label and contact the pharmacy about the preparation's ingredients, concentration or storage instructions.

    This paragraph does not claim any particular prescription meets a legal exception.

    Semaglutide versus tirzepatide: key differences

    The injectable forms of semaglutide and tirzepatide are taken once a week. Semaglutide acts on the GLP-1 receptor; tirzepatide acts on GIP and GLP-1 receptors.

    TopicSemaglutideTirzepatide
    ReceptorsGLP-1GIP and GLP-1
    FDA-approved injection brandsWegovy and Ozempic, with product-specific approved usesZepbound and Mounjaro, with product-specific approved uses
    Injection scheduleOnce weekly under the prescriptionOnce weekly under the prescription
    Pivotal weight-management trialSTEP 1: 14.9% average weight loss at 68 weeksSURMOUNT-1: 20.9% average weight loss at 72 weeks in the highest-dose group
    Common effects discussed in labelingNausea, diarrhea, vomiting and constipationNausea, diarrhea, vomiting and constipation
    Boxed warningThyroid C-cell tumors in rodentsThyroid C-cell tumors in rodents

    STEP 1 and SURMOUNT-1 were separate trials of branded medicines, not a head-to-head comparison and not studies of compounded products. Trial averages do not predict an individual result or establish compounded-product equivalence.

    At Trimi, you request compounded semaglutide or compounded tirzepatide. A licensed provider reviews whether the request is appropriate, may ask for more information, and decides whether to prescribe.

    Side effects, dosing safety and who to ask

    Common side effects discussed in the Wegovy and Zepbound prescribing information include nausea, diarrhea, vomiting, constipation, stomach pain and indigestion. Both labels carry a boxed warning about thyroid C-cell tumors observed in rodents and contraindications for a personal or family history of medullary thyroid carcinoma or MEN 2. The Zepbound label advises people using oral contraceptives to switch to a non-oral method or add a barrier method for four weeks after starting and after each dose increase. Ask your prescribing provider how these warnings apply to you.

    Syringe units measure volume, not milligrams. Use the dose and volume on your pharmacy label and ask your provider or pharmacist to confirm instructions before the first injection. FDA has reported dosing errors with compounded semaglutide. Do not use an online conversion to replace the prescription or pharmacy instructions.

    This is not a complete warning list. Read the important safety information and talk with your provider. Message your Trimi care team through the portal. For severe symptoms, seek urgent medical help; in an emergency, call 911.

    In clinical trials of branded medicines, average weight loss was 14.9% at 68 weeks with semaglutide in STEP 1 and 20.9% at 72 weeks in the highest-dose tirzepatide group in SURMOUNT-1. These were separate trials with different participants, not a head-to-head comparison, and neither tested compounded medicines, including those prescribed through Trimi. Averages do not predict an individual result or establish equivalence between compounded and FDA-approved products.

    How do I know if I qualify for a GLP-1 prescription online?

    Complete an online medical assessment for a licensed provider to review. A provider licensed in your state reviews your health history, current medicines, weight history and goals, and may ask for more information before deciding.

    The FDA labels describe contraindications, including a personal or family history of medullary thyroid carcinoma or MEN 2 and a prior serious allergic reaction to the medicine. Tell the provider if you are pregnant, planning pregnancy or breastfeeding, or have had pancreatitis, gallbladder disease, kidney problems or diabetic eye disease. Choosing semaglutide or tirzepatide does not mean it will be prescribed. A legitimate online service requires a prescription from a licensed provider and tells you which pharmacy fills it.

    Understanding the brand names

    Semaglutide and tirzepatide are sold under different FDA-approved brand names, with product-specific formulations, approved uses and patient groups. This is a short adult-use overview, not the complete prescribing information.

    Brand and formulationExamples of FDA-approved adult uses
    Wegovy, semaglutide injection or tabletsWeight reduction and long-term maintenance, and reducing major cardiovascular-event risk in adults with established cardiovascular disease and obesity or overweight. The injection also has an accelerated-approval indication for certain adults with noncirrhotic MASH and moderate to advanced liver fibrosis.
    Ozempic, semaglutide injectionBlood-sugar control in type 2 diabetes; reducing major cardiovascular-event risk in adults with type 2 diabetes and established cardiovascular disease; reducing specified kidney and cardiovascular risks in adults with type 2 diabetes and chronic kidney disease.
    Rybelsus and Ozempic tablets, oral semaglutideBlood-sugar control in adults with type 2 diabetes and reducing major cardiovascular-event risk in adults with type 2 diabetes at high risk for these events.
    Zepbound, tirzepatide injectionWeight reduction and long-term maintenance, and moderate to severe obstructive sleep apnea in adults with obesity.
    Mounjaro, tirzepatide injectionBlood-sugar control in type 2 diabetes and reducing major cardiovascular-event risk in adults with type 2 diabetes at high risk for these events.

    Each product has its own eligibility criteria, warnings and instructions. Read its current prescribing information and discuss the choice with your licensed provider. Trimi offers compounded semaglutide and compounded tirzepatide injections, not these branded medicines or oral products. Compounded medications are not FDA-approved, and a brand's approval does not establish the safety, effectiveness or quality of a compounded preparation.

    Primary sources, read October 29, 2026 (UTC)

    Editorial Standards

    Trimi publishes patient education with dated updates for fast-changing pricing, access, and safety topics.

    Review our Editorial Policy for more details about sourcing, updates, and reviewer attribution.

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