Morning sickness — safe treatment in pregnancy
Reviewed by the My London Pharmacy clinical team, Zaynab Ali, Pharmacist Independent Prescriber
·29 July 2026
·7 min read
Quick answer
Morning sickness is nausea and vomiting in pregnancy, usually in the early weeks, and despite the name it can happen at any time of day. Most cases are mild and ease with rest, small frequent meals and fluids. When it is more persistent, a clinician can review safe treatment options suitable for pregnancy.
What morning sickness is
Morning sickness is the nausea, and sometimes vomiting, that many people experience during pregnancy, most commonly in the first trimester. Although it is called morning sickness, it can occur at any time of day or night, and for some people it lasts much of the day. It is very common, affecting a large proportion of pregnancies to some degree. For most people it is unpleasant but not harmful, and it tends to ease by around weeks 16 to 20, though a minority experience it for longer.
The exact cause is not fully understood, but it is thought to relate to the rise in pregnancy hormones in the early weeks. Being more sensitive to certain smells, having an empty stomach, and tiredness can all make it worse. While common, morning sickness varies a great deal in severity, from occasional queasiness to frequent vomiting, and a small number of people develop a much more severe form that needs medical care. Understanding where your symptoms sit on that spectrum helps you decide when self-care is enough and when to seek help.
Self-care that often helps
For mild to moderate morning sickness, simple measures are the first thing to try and are often enough on their own. The general aim is to keep something in your stomach, stay hydrated, and avoid your personal triggers. It usually helps to eat small amounts frequently rather than large meals, as an empty stomach can make nausea worse.
- Eat small, plain, carbohydrate-rich snacks, such as toast, crackers or plain biscuits, especially before getting up in the morning.
- Sip fluids often through the day, in small amounts, to stay hydrated; cold or fizzy drinks suit some people better.
- Rest when you can, as tiredness can make nausea worse.
- Avoid smells, foods or situations that trigger your nausea, and get fresh air where you can.
- Some people find ginger, for example in tea or biscuits, helps mild symptoms.
These steps carry little downside and can make day-to-day symptoms more manageable while the early weeks pass. It can take some trial and error to find what works for you, and what helps may change week to week.
When treatment is considered
If nausea and vomiting are persistent, stopping you eating or drinking normally, or affecting your daily life, work or wellbeing despite self-care, it is worth speaking to a clinician. Effective treatments are available, and importantly, help should not be delayed on the assumption that morning sickness must simply be endured. NHS guidance is clear that pregnancy sickness can and should be treated when it is troublesome, and that seeking help early is sensible rather than something to feel awkward about.
Any medicine used in pregnancy is chosen carefully, weighing the benefit of controlling symptoms against safety in pregnancy for both you and your baby. This is always a clinician-led decision, based on your stage of pregnancy, how severe your symptoms are, your medical history and any other medicines you take. Self-medicating with over-the-counter remedies without advice is not recommended in pregnancy; a proper review makes sure any treatment is appropriate and safe for you.
Treatment options in pregnancy
When self-care is not enough, there are treatments a clinician may consider. A licensed first-line option for nausea and vomiting in pregnancy combines two ingredients, an antihistamine and vitamin B6, in a single delayed-release tablet: Xonvea. It is specifically licensed for use in pregnancy when conservative measures such as diet and lifestyle changes have not controlled symptoms, which is why it is often considered early when treatment is needed. Being delayed-release, it is usually taken so that it is working when symptoms tend to be at their most troublesome.
If symptoms are more severe or do not settle with first-line treatment, a clinician may consider other anti-sickness medicines used in pregnancy under medical guidance, such as Prochlorperazine or, in some situations, Ondansetron 8mg Tablets, discussing the balance of benefits and any considerations with you. The choice, dose and timing are tailored to you and reviewed as your pregnancy progresses and your symptoms change. The aim is to control symptoms enough to let you eat, drink and function, using the most suitable option for your situation rather than a one-size-fits-all approach, and treatment can be stepped up or eased back as things settle.
Complementary measures some people try
Alongside medical treatment, some people find gentler measures take the edge off mild to moderate nausea. Ginger, taken as tea, biscuits or capsules, has a reasonable reputation for easing pregnancy queasiness and is a low-risk thing to try. Acupressure bands worn on the wrist, which apply gentle pressure to a point traditionally linked with nausea, help some people, and although the evidence is mixed they carry little downside.
Vitamin B6 is sometimes suggested for pregnancy nausea and is an ingredient in some licensed treatments, but it is best to check with a clinician or pharmacist before taking any supplement in pregnancy so that the amount is appropriate. As with all self-care, these measures suit milder symptoms; if nausea is persistent, stopping you eating or drinking, or getting worse, they are not a substitute for a proper review and treatment.
Severe pregnancy sickness
A small number of people develop hyperemesis gravidarum, a severe form of pregnancy sickness with frequent vomiting, difficulty keeping any fluids down, and weight loss. This is more than ordinary morning sickness and can lead to dehydration and disturbances in the body's salts, so it needs prompt medical attention. It is not something to manage alone at home, and it is not a sign of doing anything wrong.
Signs that point to severe sickness include being unable to keep any food or fluid down, passing very little or dark urine, feeling very weak, dizzy or faint, a racing heartbeat, or losing weight. If you have these, seek medical help without delay, as treatment, which can include anti-sickness medicines and sometimes fluids given through a drip in hospital, can make a significant difference and help you recover. Many people with severe sickness go on to have healthy pregnancies with the right support.
Coping day to day
Morning sickness can be wearing, especially when it lasts for weeks and coincides with the tiredness of early pregnancy. Alongside the practical steps above, it can help to be kind to yourself and adjust your routine where you can. Eating whatever you can keep down, even if it is not a perfectly balanced meal, is reasonable while symptoms are at their worst; variety and balance can be restored as the nausea settles. Keeping snacks by the bed and eating little and often can prevent the empty-stomach dip that triggers queasiness.
Support at work and home makes a difference too. You may find that certain tasks, journeys or environments are harder while you feel sick, and it is fine to ask for adjustments or share how you are feeling with people you trust. If you are struggling to eat, drink or cope, that is a reason to seek help rather than push through alone. Persistent nausea does not mean anything is wrong with your pregnancy, but it is a symptom that deserves support and, where needed, treatment.
When to seek help
Contact a clinician if your sickness is severe, if you cannot keep food or fluids down, if you are losing weight, or if self-care is not helping. Also seek advice if you have signs of dehydration such as dark urine, dizziness or passing little urine, or if you have tummy pain, a high temperature, vomiting blood, or symptoms that feel different from typical morning sickness, as these need prompt assessment.
A consultation lets a clinician assess how you are affected and discuss treatment that is appropriate for pregnancy, as well as arranging any checks that may be needed. Getting help early can prevent symptoms from worsening and make the first trimester more bearable, so you can look after yourself and your pregnancy. Support is available, and you do not have to simply put up with severe or persistent sickness on your own.
Frequently asked questions
Is morning sickness only in the morning?
No. Despite the name, morning sickness can happen at any time of day or night. It is most common in the first trimester and usually eases by around weeks 16 to 20.
Can I take anything for morning sickness in pregnancy?
Yes, if self-care is not enough. A clinician can review options licensed or used in pregnancy, such as a combined antihistamine and vitamin B6 tablet. Treatment should always be clinician-led rather than self-started.
When should I worry about pregnancy sickness?
Seek help if you cannot keep food or fluids down, are losing weight, have signs of dehydration such as dark urine and dizziness, or have tummy pain or a high temperature. These may indicate severe sickness needing prompt care.
Does ginger help morning sickness?
Some people find ginger eases mild nausea, and it is a reasonable self-care step to try. If symptoms are persistent or severe, however, it is best to speak to a clinician about treatment.
Are acupressure bands worth trying?
Some people find wrist acupressure bands ease mild nausea. The evidence is mixed, but they carry little downside and can be used alongside other self-care while symptoms are mild.
What is hyperemesis gravidarum?
It is a severe form of pregnancy sickness with frequent vomiting, difficulty keeping fluids down and weight loss. It can cause dehydration and needs medical attention, sometimes including hospital treatment.