Dr. Amitabh Parti, MD — Internal Medicine, Fortis Memorial Research Institute, Gurugram
If your doctor has prescribed semaglutide — as a tablet or an injection — this guide walks you through everything you need to start safely and succeed on the medication.
1🧬 What is semaglutide & how does it work?
Semaglutide is a GLP-1 receptor agonist. GLP-1 is a natural hormone your gut releases after eating; semaglutide mimics it but lasts much longer. It works in four key ways:
💊 Oral semaglutide (Rybelsus) — how to take it
Dose escalation
Missed a tablet? Skip it and take the next one the following morning. Never double up.
3💉 Injectable semaglutide — how to use it
Inject under the skin of the abdomen, thigh, or upper arm — rotate the site each week. Same day every week, with or without food. Store new pens in the fridge; once in use, keep below room temperature for the days stated on your pen.
Ozempic (diabetes)
Wegovy (weight management)
🤢 Common side effects & how to manage them
Most side effects involve the stomach and gut, are strongest in the first 4–8 weeks or at dose increases, and usually settle with time.
🥗 Diet & protein — the priority
Protein is the single most important target — aim for 1.2–1.5 g per kg of your target body weight every day to protect muscle while you lose fat.
🚨 Red flags — stop & seek help immediately
Do not use semaglutide if you have a personal/family history of medullary thyroid cancer (MTC) or MEN2 syndrome, a known allergy to it, during pregnancy (stop ≥2 months before planning), or with type 1 diabetes/DKA.
7🧪 What we monitor
| Check | When | Why |
|---|---|---|
| HbA1c, fasting glucose | Baseline · 3 · 6 · 12 months | Blood-sugar control |
| Liver & kidney function | Baseline · 3 · 6 · 12 months | Organ safety |
| Weight + waist | Every visit | Track fat loss (≥5% by 3–6 months = responding) |
| Lipids, blood pressure, TSH | Baseline & periodically | Overall metabolic health |
| Amylase/lipase | If stomach pain | Rule out pancreatitis |
🏃 Lifestyle pillars
✅ Your key takeaways
- Tablet: empty stomach, 120 mL water only, 30-minute wait — set a morning alarm.
- Injection: same day weekly, rotate sites, store in the fridge.
- Go slow with the dose — never skip a step without your doctor.
- Nausea is temporary — manage with small, slow, bland meals.
- Protein every meal (1.2–1.5 g/kg/day) to protect muscle.
- Severe stomach pain → stop and go to hospital immediately.
- Don't skip your baseline / 3 / 6 / 12-month lab tests.
- Move daily — walking + light strength training.
- If weight loss is under 5% at 3–4 months, talk to your doctor.
- Lifestyle is the long-term strategy; the medicine is the tool.
This article is general educational content by Dr. Amitabh Parti. It is not a substitute for individual medical advice. Please consult a qualified physician for guidance specific to your condition.
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