Starting Dose Volume of Semaglutide
The starting dose of injectable semaglutide (Wegovy) is 0.25 mg subcutaneously once weekly for 4 weeks, which is administered as a gradual dose titration to minimize gastrointestinal adverse effects. 1
Dosing Schedule for Injectable Semaglutide (Wegovy)
The recommended dosing regimen follows a gradual titration schedule:
This gradual titration is essential to minimize gastrointestinal adverse effects, which are the most common side effects of semaglutide 1, 2
Dosing for Oral Semaglutide (Rybelsus)
- For oral semaglutide (Rybelsus), the starting dose is 3 mg once daily for one month 3
- After one month, increase to 7 mg once daily for at least one month 3
- If additional glycemic control is needed, can increase to 14 mg once daily 3
- Oral semaglutide must be taken on an empty stomach with no more than 4 ounces (120 mL) of plain water, at least 30 minutes before the first food, beverage, or other oral medications of the day 3, 4
Clinical Considerations for Dosing
Some patients may achieve adequate glycemic control at submaximal doses and can continue at that dose long-term 1, 3
If a patient misses doses, clinical judgment is needed:
In clinical trials, semaglutide 0.5 mg and 1.0 mg weekly doses showed similar effectiveness in reducing HbA1c (-2.1% for both doses) and weight (-6.1 kg vs -6.2 kg) in patients with type 2 diabetes 5
Administration Considerations
Injectable semaglutide can be administered at any time of day, with or without meals 1
For missed doses of injectable semaglutide:
Proper administration of oral semaglutide is critical for absorption and efficacy; taking with food significantly reduces absorption 3, 4
Safety Considerations
- The most common adverse effects are gastrointestinal (nausea, vomiting, diarrhea, constipation) but are typically transient and mild-to-moderate in severity 2, 1
- Use caution when combining with insulin or insulin secretagogues due to potential hypoglycemia risk 1, 3
- No dosage adjustment is required for patients with renal impairment 1, 3