IVF Long Protocol: What You Need to Know

The long protocol adds a pre-treatment phase before hormonal stimulation begins. A nasal spray (Synarela) is used for approximately 20 days to suppress the body's natural hormone production, before stimulation injections start. The intention is to give the clinic greater control over the timing of egg development.

Long protocol vs. short protocol

The short protocol is now the standard approach at Klinikk Hausken for the vast majority of patients. It works by beginning stimulation directly at the start of the menstrual cycle, without a pre-treatment phase. It is equally effective for most patients and has a simpler, more predictable schedule — which is particularly practical for international patients planning travel.

The long protocol is occasionally used in specific clinical situations where a longer suppression phase is beneficial. Your doctor will recommend the right protocol for you based on your individual case. If you have been told the long protocol applies to you, your nurse will walk you through the differences in your treatment plan.

What to do next

For most international patients, the short protocol is the relevant starting point. You can read the full step-by-step guide for the short protocol below, and then start with a free case review to confirm which protocol is right for your situation.