“Sematrinity 1mg” Pre-Filled Pen is supplied with a vial containing a solution of semaglutide 4mg/3mL (i.e. approximately 1.34mg per mL) and comes in the form of a multi-dose pre-filled pen. Each pen can be used to administer four one-milligram doses. Semaglutide is one of the GLP-1 receptor agonists that affect the regulation of blood glucose level, food intake and appetite. Sun Pharmaceutical Industries Ltd. has been the manufacturer of this product.
Promethean Pharmaceuticals have been granted access to semaglutide (Wegovy) after approval for chronic weight loss for adults when a reduced-calorie diet and physical activity are also adopted. Wegovy is a weekly dosing GLP-1 receptor agonist that promotes reduction in appetite, leading to less caloric intake.
What Is Sematrinity 1mg Used For?
Sematrinity 1mg contains semaglutide, a compound that belongs to a group of medicines called GLP-1 (glucagon-like peptide-1) receptor agonists.
Semaglutide may be part of the doctor’s treatment plan for medical weight loss in certain patients. According to the Australian Healthdirect website, Wegovy (a trade name for semaglutide) is intended for long-term weight reduction in overweight/adults when they meet both these conditions:
- BMI equal to 30 kg/m² or higher, or
- BMI ranging from 27 to 30 kg/m² and at least one weight-related health condition.
One such condition may be that the person has high blood pressure, diabetes or any other condition that could increase the risk with weight loss/ weight gain.
This drug is taken on a low calories diet and combined with exercising more regularly. Weight management treatment may involve both losing weight and maintaining weight loss over the longer term.
How Does Sematrinity 1mg Work?
Sematrinity contains semaglutide, which mimics the action of GLP-1, a naturally occurring hormone involved in appetite and blood glucose regulation.
Semaglutide can:
- reduce hunger
- increase feelings of fullness
- reduce food intake
- slow gastric emptying
- influence blood glucose regulation
This outcome is likely to help certain individuals adhere to a diet program that involves consuming fewer calories. According to Healthdirect, semaglutide has been recognized as a GLP-1 receptor agonist currently available in Australia to manage weight loss only under a certain brand and specific usage.
Therefore, Sematrinity should never be considered as a magic pill. It needs to be incorporated into a comprehensive program to manage body weight which includes eating right, taking supplements, and doing exercise as needed, besides other things of that kind.
Sematrinity 1mg Composition
The product shown contains:
Semaglutide – 4mg/3mL
This corresponds to approximately 1.34mg/mL.
The multi-dose pre-filled pen is designed to provide four 1mg doses, administered once weekly.
How to Use Sematrinity 1mg
Sematrinity is administered as a subcutaneous injection, meaning it is injected underneath the skin.
Common injection areas include:
- abdomen
- thigh
- upper arm
The injection should not be given into a vein or muscle. A healthcare professional should demonstrate the correct pen technique before you use it yourself.
Semaglutide is administered once weekly, and it can generally be taken at any time of day, with or without food.
Use a new disposable needle for each injection and follow the instructions supplied with the specific pen.
Sematrinity 1mg Dosage
Although the product is labelled as a 1mg dose, semaglutide treatment is generally started at a lower dose and increased gradually.
The Australian Wegovy product information provides the following weight-management escalation schedule:
| Treatment period | Weekly semaglutide dose |
|---|---|
| Weeks 1–4 | 0.25mg |
| Weeks 5–8 | 0.5mg |
| Weeks 9–12 | 1mg |
| Weeks 13–16 | 1.7mg |
| Maintenance | 2.4mg |
The 1mg dose is therefore normally an escalation dose rather than the starting dose for the Australian Wegovy weight-management regimen. The dose should only be increased according to the prescribing doctor’s instructions.
Do not start directly at 1mg unless your doctor has specifically prescribed that regimen.
Missed Dose
If a weekly semaglutide dose is missed, Australian product information allows the missed dose to be taken within 5 days. If more than 5 days have passed, the missed dose should generally be skipped and the next dose taken on the usual day.
Do not take two doses close together to make up for a missed injection.
Possible Side Effects of Sematrinity 1mg
The most common side effects of semaglutide involve the digestive system.
These may include:
- nausea
- vomiting
- diarrhoea
- constipation
- abdominal pain
- indigestion
- bloating
- reflux or belching
- headache
- dizziness
- tiredness
- injection-site reactions
Digestive symptoms can be more noticeable when treatment is first started or when the dose is increased.
Pancreatitis
Acute pancreatitis has been a side effect linked to Semaglutide use. If you notice severe, persistent abdominal pain, you should promptly reach out to medical professionals for evaluation, and especially so if the pain is coupled with nausea or vomiting.
Vomiting or diarrhoea for a long time can be a source of dehydration as well.
Sematrinity 1mg and Gallbladder Problems
Several gallbladder issues including the formation of gallstones have been the side effects of a therapy with semaglutide, but they are generally quite rare.
However, consult your doctor without delay if you have continuous pain just below the ribs, especially if the pain goes along with feeling sick, throwing up, a high temperature, or the skin and eyes turning yellow.
Losing weight too fast may also lead to gallstone development. Hence, symptoms related to gallbladder should be taken with great seriousness not to be neglected at all.
Precautions Before Using Sematrinity
Tell your doctor before using semaglutide if you have:
- a history of pancreatitis
- gallstones or gallbladder disease
- kidney disease
- liver problems
- severe gastrointestinal disease
- diabetic retinopathy
- diabetes treated with insulin or sulfonylureas
- an allergy to semaglutide
- a planned operation or procedure involving anaesthesia
Semaglutide slows stomach emptying. The TGA has warned that GLP-1 medicines may increase the risk of aspiration during general anaesthesia or deep sedation. Make sure your doctor and anaesthetist know that you are using semaglutide before a procedure.
Sematrinity 1mg and Other Medicines
Semaglutide may affect the absorption of some oral medicines because it delays gastric emptying.
Extra care may be required if you take:
- insulin
- sulfonylureas
- medicines requiring close blood-glucose monitoring
- oral medicines that require rapid absorption
When semaglutide is combined with insulin or a sulfonylurea, the risk of hypoglycaemia can increase.
Tell your doctor about all prescription medicines, over-the-counter medicines and supplements you take before starting treatment.
Can Sematrinity Be Used With Metformin?
Semaglutide can be used alongside other diabetes medicines in appropriate patients, and semaglutide-based treatment is commonly used in combination with medicines such as metformin when clinically appropriate.
However, the combination should be determined by your doctor based on your blood glucose levels, other medicines and medical history.
Do not change your diabetes medicines yourself because you are starting semaglutide.
Sematrinity 1mg and Pregnancy
Semaglutide should not be used for weight management during pregnancy.
Australian product information recommends stopping semaglutide at least 2 months before a planned pregnancy because the medicine has a long elimination period.
If you become pregnant while using semaglutide, contact your doctor promptly.
How to Store Sematrinity 1mg
The Sematrinity product information states that the unopened pen should be stored in a refrigerator at 2°C to 8°C and should not be frozen.
After first use, available product information states that the pen may be kept refrigerated or at a temperature below 30°C, and the pen should be discarded after the specified in-use period.
For Australian semaglutide products, Healthdirect similarly recommends:
- refrigeration at 2°C to 8°C
- protection from light
- do not freeze
Always follow the storage instructions printed on the specific Sematrinity pack supplied to you.
How Long Does One Sematrinity 1mg Pen Last?
The 4mg/3mL Sematrinity pen provides four 1mg doses when used according to the labelled dosing schedule. Since semaglutide is administered once weekly, this corresponds to approximately four weeks of treatment.
The exact in-use shelf life should still be followed from the product’s instructions rather than assuming that a partially used pen can be kept indefinitely.
Sematrinity 1mg vs Other Semaglutide Pens
Sematrinity 1mg contains the same active ingredient, semaglutide, used in other semaglutide medicines. However, brands can differ in their approved indications, pen design, concentration and dosing instructions.
For example, Sun Pharma specifically states that Noveltreat is its semaglutide brand indicated in India for chronic weight management, while Sematrinity was launched for insufficiently controlled type 2 diabetes.
This is an important distinction when describing the product online.
FAQs
1. Does Sematrinity 1mg need a new needle for every injection?
Yes. A new disposable needle should be used for each injection. Reusing needles can increase the risk of contamination, injury and incorrect dosing.
2. Can Sematrinity 1mg cause gallstones?
Semaglutide treatment has been associated with gallbladder problems, including gallstones. Contact your doctor if you develop persistent upper-abdominal pain or other symptoms suggesting gallbladder disease.
3. What should I do if Sematrinity 1mg causes persistent vomiting?
Persistent vomiting can lead to dehydration and may require medical assessment. Contact your doctor, particularly if you cannot keep fluids down, feel very weak or dizzy, or develop severe abdominal pain.
4. Can Sematrinity 1mg affect diabetic eye problems?
Rapid improvement in blood glucose can sometimes be associated with a temporary worsening of diabetic retinopathy. People with diabetic eye disease should tell their doctor before starting semaglutide so their condition can be monitored appropriately.
References
- Sun Pharmaceutical Industries — Semaglutide launch: (Sun Pharma)
- Healthdirect Australia — Wegovy: (Healthdirect)
- Healthdirect Australia — Weight Loss Medicine: (Healthdirect)
- Healthdirect Australia — Semaglutide: (Healthdirect)
Medical Disclaimer
Sematrinity 1mg Pre-filled Pen contains semaglutide, a prescription GLP-1 receptor agonist. It should be used only under appropriate medical supervision. Do not start semaglutide, increase the dose or change your injection schedule without medical advice.
