Weekly semaglutide is sold in more than one milligram strength because the first month is supposed to be gentler than the months that follow. Mixing up a starter pen with a high-strength vial is one of the easier ways to feel wretched — or to under-dose and decide “it does nothing.”
Below is how the four injectable listings on Global Medica Store sit next to each other. Use it as a map of the catalog, then confirm the number on your prescription before you add a pack to the cart.
0.25 mg–0.5 mg: the usual on-ramp
The lowest weekly presentation we list is a pen covering 0.25 mg and 0.5 mg. Licensed type 2 diabetes and many weight-management schedules begin at 0.25 mg once a week for several weeks, then 0.5 mg, so nausea has a chance to settle. Skipping that step because a higher box looks better value is not a medical plan.
If GI effects are still sharp at 0.5 mg, a clinician may hold the dose longer rather than escalate. That decision belongs with them, not with the next pack in the shop.
1 mg weekly: a common next step
A 1 mg pen is typically used after the starter period when more glucose lowering or appetite effect is wanted and the lower doses were tolerated. It is still a once-weekly subcutaneous injection. It is not a daily shot and it is not interchangeable milligram-for-milligram with oral semaglutide tablets, which use a different absorption route and a different milligram scale.
People already on 1 mg who feel well should not jump to a 4 mg vial to “speed up” weight change. Faster is not the same as safer.
2 mg and 4 mg vials
The 2 mg and 4 mg vials are higher weekly strengths. They exist for adults whose prescriber has already moved them up, or for compounding-style vial presentations some clinics use. Drawing from a vial needs the right syringe technique, sterile handling and a clear weekly dose in milligrams — not a guess from a forum screenshot.
A 4 mg label does not mean four times the benefit of 1 mg with the same side-effect profile. Gallbladder symptoms, dehydration from vomiting, and loss of lean mass from eating too little are real risks when high doses are used without follow-up.
Injections versus tablets
Oral semaglutide (3 mg, 7 mg, 14 mg tablets on this site) is swallowed on an empty stomach with a small sip of water and a waiting period before food. Weekly injections skip that morning ritual but need cold-chain awareness, needles and a weekly calendar. A clinician chooses the form from kidney function, other medicines, injection comfort and what the local licence allows — not from which product photo looks larger.
Buying the strength that matches the script
We ship only to the USA, UK, Australia and New Zealand. Each of those countries treats semaglutide as a prescription medicine. Match the product page to the strength you were given: 0.25–0.5 mg, 1 mg, 2 mg or 4 mg. If the box that arrives is a different milligram than the plan in your notes, do not inject it — contact us and your clinician.
For the full injectable range, open the Semaglutide category. Pack sizes and USD prices are on each product page.
This page is general information. Use medicines only as a qualified clinician directs, and follow import rules in your country.