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Semabest 4mg Injection
Last updated on 26 Sep 2026 | 08:41 AM (IST)
₹3992
MRP: ₹4490
(You Save ₹498)
1 PREFILLED PEN(s) OF 3ML
Semabest 4mg Injection
Salt Composition
SEMAGLUTIDEMarketer
MSN LABORATORIES (INDIA)
Prepaid Only. Non-Returnable.
11% OFF
₹3992
MRP: ₹4,490.00
Inclusive of all taxes
11% Off
Salt Composition
SEMAGLUTIDEMarketer
MSN LABORATORIES (INDIA)
Prepaid Only. Non-Returnable.
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Introduction
Semabest 4mg Injection contains Semaglutide, a GLP-1 receptor agonist used for the treatment of adults with insufficiently controlled type 2 diabetes mellitus. It is supplied as a prefilled pen containing 4mg of semaglutide in 3mL, with a concentration of 1.34mg/mL. It is used along with diet and exercise.
The 4mg strength refers to the total amount of semaglutide in the pen and is not automatically the weekly dose.
Uses of Semabest 4mg Injection
Semabest 4mg Injection is used to:
Improve blood sugar control in type 2 diabetes mellitus: It may be used as monotherapy when metformin-based treatment is considered inappropriate because of intolerance or contraindications.
Support additional blood sugar control: It may be added to other medicines used for type 2 diabetes.
Semabest is not used for type 1 diabetes or diabetic ketoacidosis.
How Semabest 4mg Injection Works
Semabest 4mg Injection contains Semaglutide, which activates GLP-1 receptors.
It increases insulin secretion when blood glucose is high and reduces glucagon secretion. Semaglutide also delays stomach emptying, particularly after meals, which contributes to its blood sugar-lowering effects.
Interaction of Semabest 4mg Injection with Other Medicines
Tell your doctor about all prescription medicines, over-the-counter medicines, vitamins, supplements and herbal products you take.
Insulin or sulfonylureas: May increase the risk of low blood sugar when combined with Semaglutide.
Oral medicines: Delayed stomach emptying may affect the rate of absorption of some oral medicines.
Other GLP-1 receptor agonists: Do not combine Semabest with another GLP-1 receptor agonist unless specifically prescribed.
Warfarin or other coumarin derivatives: Your doctor may recommend closer INR monitoring after starting Semaglutide.
Storage Conditions
Store Semabest 4mg Injection at 2°C to 8°C in a refrigerator.
Do not freeze.
Do not use if frozen.
Protect the pen from light.
Keep out of the sight and reach of children.
Follow the product-specific instructions for storage after first use.
How to Use
Use Semabest 4mg Injection exactly as prescribed.
The usual starting dose of Semaglutide is 0.25mg once weekly. After 4 weeks, it may be increased to 0.5mg once weekly. After at least 4 weeks at 0.5mg, the dose may be increased to 1mg once weekly and then to 2mg once weekly when additional blood sugar control is needed.
Semabest is injected under the skin of the abdomen, thigh or upper arm once a week, at any time of the day, with or without food.
The 4mg in the pen is the total product content and is not a 4mg weekly dose.
Do not inject into a vein or muscle. Follow the instructions for the prefilled pen and do not share the pen or needles.
If you miss a dose, administer it within 5 days. If more than 5 days have passed, skip it and resume the regular weekly schedule.
Safety Advice
Pregnancy
Semabest should not be used during pregnancy. Semaglutide should be discontinued at least 2 months before a planned pregnancy.
Breast Feeding
Semaglutide should not be used while breastfeeding because a risk to the breastfed child cannot be excluded.
Lungs
Tell your doctor if you are scheduled for surgery or a procedure requiring general anaesthesia or deep sedation. Semaglutide delays stomach emptying, which may increase the risk of aspiration during these procedures.
Liver
No routine dose adjustment is required for hepatic impairment, but experience in severe hepatic impairment is limited. Tell your doctor if you have liver disease.
Alcohol
Discuss alcohol consumption with your doctor, particularly if you take other diabetes medicines or experience gastrointestinal side effects.
Driving
Semaglutide does not usually affect the ability to drive. However, hypoglycaemia may occur when used with insulin or sulfonylureas. Avoid driving if you develop symptoms of low blood sugar.
Side Effects
Common side effects of Semabest 4mg Injection may include:
Nausea
Vomiting
Diarrhoea
Constipation
Abdominal pain
Indigestion
Abdominal distension
Headache
Dizziness
Serious side effects:
Severe, persistent abdominal pain, which may indicate pancreatitis.
Severe allergic reactions, including swelling of the face, lips, tongue or throat or difficulty breathing.
Persistent vomiting or diarrhoea, which may cause dehydration.
Sudden loss of vision, requiring urgent medical assessment.
Worsening diabetic retinopathy, particularly in patients taking insulin.
Low blood sugar, particularly with insulin or sulfonylureas.
A neck lump, persistent hoarseness, difficulty swallowing or difficulty breathing, which requires medical assessment because of the thyroid C-cell tumour warning associated with Semaglutide.
Seek medical attention promptly if serious symptoms occur.
Expert Tips
Use Semabest exactly as prescribed.
Do not confuse the 4mg pen strength with your weekly dose.
Follow the gradual dose-escalation schedule prescribed by your doctor.
Keep diabetes monitoring appointments.
Tell your doctor if you have diabetic retinopathy.
Stay hydrated if you experience vomiting or diarrhoea.
Do not share your pen or needles.
Tell your doctor before surgery or deep sedation.
Seek urgent medical attention for severe abdominal pain or sudden vision loss.
FAQs
Q1.
What is Semabest 4mg Injection used for?
Semabest 4mg Injection contains Semaglutide and is used to improve blood sugar control in adults with insufficiently controlled type 2 diabetes mellitus.
Q2.
Is Semabest 4mg Injection a 4mg weekly dose?
No. The pen contains 4mg of Semaglutide in total. Your doctor will prescribe the actual weekly dose.
Q3.
What is the starting dose of Semabest 4mg Injection?
The usual starting dose of Semaglutide is 0.25mg once weekly. It is increased gradually according to your response and your doctor's instructions.
Q4.
How often should I use Semabest 4mg Injection?
Semabest is generally administered once weekly.
Q5.
Can Semabest 4mg Injection cause low blood sugar?
Yes, but the risk is relatively low when Semaglutide is used alone. The risk increases when it is combined with insulin or sulfonylureas.
Q6.
What should I do if I miss a Semabest 4mg Injection dose?
Take the missed dose within 5 days if possible. If more than 5 days have passed, skip it and take the next dose on your usual day.
Q7.
Can Semabest 4mg Injection be used during pregnancy?
No. Semaglutide should not be used during pregnancy and should be stopped at least 2 months before planned pregnancy.
Fact Box
Molecule name: | Semaglutide |
Therapeutic class: | Antidiabetic agent |
Pharmacological class: | GLP-1 receptor agonist |
Indications: | Type 2 diabetes mellitus |
References
Disclaimer
MrMed’s primary intention is to ensure that its consumers get information that is reviewed by experts, accurate and trustworthy. The information and contents of this website are for informational purposes only. They are not intended to be a substitute for professional medical advice, diagnosis, or treatment. Please seek the advice of your doctor and discuss all your queries related to any disease or medicine. Do not disregard professional medical advice or delay in seeking it because of something you have read on MrMed. Our mission is to support, not replace, the doctor-patient relationship.
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Author Details
Written By
Vishishta
M.Sc Microbiology

Reviewed By
Dr. Tejashwin Adiga
MBBS
Last updated : 26 Sep 2026 | 08:41 AM (IST)

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