How to start with an online doctor
Step 1: complete a short medical questionnaire with an online doctor in Ireland, such as Zava.
Step 2: if a weight loss medicine is appropriate, a prescription is issued and sent to your chosen pharmacy via Healthmail. If you choose Healthwave, the prescription can be addressed to healthwave.dundrum@healthmail.ie.
Step 3: the pharmacy confirms availability, explains pen use and storage. If you choose Healthwave, we pack discreetly and deliver typically within 1–2 working days, or arrange convenient collection.
Prefer to speak directly with a doctor?
Easily book a video consultation with a registered doctor via Eirdoc.
Prefer to see a doctor in person?
For medicine specific details, see our pages on Mounjaro, Wegovy and Saxenda.
Wegovy vs Mounjaro vs Saxenda: key differences
Wegovy vs Mounjaro vs Saxenda: key differences
| Medicine | Active | How it works | Dose schedule | Typical starting dose | Common effects | Notes |
|---|---|---|---|---|---|---|
| Wegovy | Semaglutide | GLP-1 receptor agonist | Once weekly injection | 0.25 mg weekly with monthly step-ups | Nausea, reflux, constipation or diarrhoea, reduced appetite | Single-use prefilled pen; rotate injection sites; store refrigerated before first use |
| Mounjaro | Tirzepatide | Dual GIP/GLP-1 receptor agonist | Once weekly injection | 2.5 mg weekly then gradual increases | Nausea, vomiting, diarrhoea or constipation, fatigue | Prefilled auto-injector; slow escalation helps tolerance |
| Saxenda | Liraglutide | GLP-1 receptor agonist | Once daily injection | 0.6 mg daily, increase weekly | Nausea, indigestion, constipation or diarrhoea | Multi-dose pen; daily routine suits some users |
Who these medicines may suit
These injections are usually considered for adults with a raised body mass index and weight related risks. An online doctor reviews medical history, current medicines and previous attempts at lifestyle change.
Support, supplies and everyday use
- Injection technique: single use needles, rotate abdomen or thigh sites, and check the pen window before use.
- Storage: keep pens refrigerated before first use. In use, most pens can be kept at room temperature for a limited time; check your pack leaflet.
- Side effects tips: start low and step up slowly. Eat smaller, balanced meals and keep fluids up.
- Follow up: dose changes are usually monthly at the start. A pharmacist can help with reminders and pen disposal advice.
FAQs
How quickly can I get a prescription online?
Most people complete the questionnaire in a few minutes. After medical review, suitable prescriptions are sent to your chosen pharmacy the same or next working day.
What if a dose is out of stock?
The pharmacy will let you know the nearest alternative strength and delivery timing. Your doctor may adjust the plan temporarily.
Can I switch between Wegovy, Mounjaro and Saxenda?
Switching requires clinical advice because doses and schedules differ. Speak to a doctor or pharmacist before changing.
When should I seek urgent help?
Severe tummy pain that will not settle, persistent vomiting, signs of allergy or dehydration need prompt medical assessment.
