Ramadan and Your Weekly Injection: What to Ask Your Doctor

If you take a weekly injection such as Mounjaro, Ozempic or Wegovy and plan to fast, see your doctor well before Ramadan. Only your doctor can decide whether fasting suits you and whether your treatment needs any change. This guide gives no instructions; it collects the questions worth asking at that visit.

Why see my doctor before Ramadan in particular?

Because Ramadan changes your whole day: when you eat, drink, sleep and move. The Saudi Food and Drug Authority (SFDA) advises patients to consult their doctors on the right times to take their medicines during the month, and stresses that people with diabetes should see their specialist before Ramadan to confirm they can fast.

A review by a King Saud University researcher notes that available guidance suggests a pre-Ramadan assessment one to three months ahead for people with diabetes who plan to fast. It also notes that most evidence on weekly GLP-1 injections in Ramadan comes from people with diabetes, and that evidence in other patients is still limited. So the decision is individual, and it belongs in your doctor's clinic.

What should I ask about fasting itself?

Start with the main question, then go into detail:

Is fasting suitable for me this year?
Are there situations or symptoms where I should break my fast straight away?
Do I need any tests before or during the month?
If I have diabetes: should I check my blood sugar while fasting, and when?

The Saudi Ministry of Health's advice for people with diabetes says treatment changes should be made under a doctor's supervision, and that skipping that consultation can lead to sharp drops or rises in blood sugar during the month.

What should I ask about my injection day and dose?

A weekly injection has a fixed day, and the medicine leaflet has a section on missed doses and another on changing the injection day. Don't rely on what you read online; ask your doctor or pharmacist:

Should I keep my usual injection day during Ramadan?
Does it matter whether I inject before or after iftar?
If my dose is due to change soon, is it better before or after Ramadan?
What should I do if I forget an injection during the busy month, and where is that in my leaflet?

The review notes that digestive side effects are more common when a dose goes up, and that some guidance discusses timing this before Ramadan. That is your doctor's decision alone, so never stop the injection or change its dose or day on your own.

What should I ask about nausea and fluids?

Nausea, vomiting and diarrhoea are known side effects of these injections. The official Ozempic leaflet says they may cause a loss of fluids (dehydration), which may cause kidney problems, and asks patients to tell their doctor right away if these symptoms don't go away. With long fasting hours, these questions matter:

If I feel sick or vomit while fasting, when should I break the fast?
How do I recognise the signs of dehydration?
Do I need my kidney function checked?
Are there foods or habits at suhoor and iftar that may make my nausea worse?

Log each episode of nausea or vomiting on the day it happens, with its timing relative to iftar and suhoor. These small details help your doctor more than a general description you recall weeks later.

What if I also take other diabetes medicines?

The Ozempic leaflet warns that using it with insulin or with medicines that make the body release insulin, such as sulfonylureas, may raise the risk of low blood sugar. Fasting adds another factor. Bring a list of all your medicines and ask:

Do my other medicines need a new schedule in Ramadan?
Which signs of low blood sugar mean I should break my fast?

Don't change any medicine before you hear your doctor's answer.

How do I prepare for this visit?

Write your questions down before the visit; clinic time is short.
Bring a list of all your medicines with the doses on your prescription.
Log your symptoms in the weeks before the visit, with how strong they were and when they came.
Note what your doctor says, especially the situations where you should break your fast.
Ask about a follow-up during or after the month, and how best to reach the clinic if a new symptom appears.

If your doctor tells you fasting isn't suitable for you this year, ask about the options, and feel free to take your religious questions to a qualified scholar.

If you log your injections and symptoms in Nemati, the one-page report shows your doctor your recent weeks at a glance.

Sources

Important

Nemati is a personal logbook, not a medical device, and it does not diagnose, treat or give medical advice. This article is for awareness and does not replace your medicine's leaflet or your doctor's advice. Discuss any change to your treatment or your fasting with your doctor; in an emergency in Saudi Arabia, call the Red Crescent on 997.