https://patient.info/health/rss Latest updates from Patient.info PatientInformationLeaflet Copyright 2026 Patient.info This pregnancy due date calculator will give you a rough idea of when your baby should be born. If you know the date of the first day of your last menstrual period (LMP), or have already had your first ultrasound scan, you can use this tool. Please remember that the result will not necessarily be the day that your baby arrives. The actual date may be any time from 38 to 42 weeks in most pregnancies. If problems occur you may be advised that delivering your baby earlier is the safest option. For advice on recognising signs that you are going into labour, or for information on some types of pain relief in labour, follow the links. We also have information on how your baby is monitored in labour. Open in a new window. https://patient.info/pregnancy/pregnancy-due-date-calculator 2fGLZlOXVE1fAcDiMxbIOH 2026-05-07T23:00:00.000Z While many antihistamines are considered safe, some older types or high doses may affect the baby, and certain versions contain decongestants that must be avoided. Taking any medication during pregnancy requires a balance between your comfort and the baby's development. https://patient.info/medication-interactions/antihistamines-while-pregnant-interaction pkVAEljApzuoId4kLpK9q 2026-04-30T23:00:00.000Z Combining alcohol with antihistamines can make you feel extremely drowsy, dizzy, and unsteady on your feet. It can also slow down your breathing and significantly impair your coordination and judgement. This effect is much stronger with older 'sedating' antihistamines (like chlorphenamine or promethazine), but it can also happen with newer 'non-drowsy' versions (like cetirizine or loratadine). https://patient.info/medication-interactions/antihistamines-with-alcohol-interaction 61Q6GUGkkFT54SfSQ6RHG9 2026-04-30T23:00:00.000Z Antihistamines can affect children differently than adults. While they usually cause sleepiness, they can sometimes cause 'paradoxical excitation,' making a child hyperactive, shaky, or unable to sleep. In very young children (under 6), some older antihistamines can cause serious breathing problems or severe drowsiness. https://patient.info/medication-interactions/child-and-antihistamines-interaction 1WvwqlikzxuQIkm8g55MU0 2026-04-30T23:00:00.000Z While antihistamines are generally safe for people with asthma, older 'sedating' antihistamines (like chlorphenamine) can occasionally make asthma symptoms harder to manage by drying out the airways. Additionally, some people with asthma may have a higher risk of allergic reactions to certain ingredients in liquid medications. https://patient.info/medication-interactions/antihistamines-and-asthma-interaction 65EMEndjiRmaBv3UR8Bwic 2026-04-30T23:00:00.000Z Each week we’ll share useful information and essential tips on topics such as nutrition, exercise, mental health, symptoms to look out for, and preparing for childbirth, to help you navigate your pregnancy journey whatever stage you are at. https://patient.info/pregnancy/healthy-pregnancy-course 4Qn4Z8dF6twyQA6loFNHZL 2026-04-20T23:00:00.000Z Taking mirtazapine and pregabalin together can make you feel much more sleepy, dizzy, or confused than usual. It can also affect your coordination and increase the risk of falls. https://patient.info/medication-interactions/mirtazapine-and-pregabalin-interaction 85fc040e607c4ed5918275744924e0ed 2026-04-15T00:00:00.000Z Use this alcohol units calculator to work out how many units are in your drinks and see how your drinking compares with UK low-risk guidelines. Many people underestimate how much alcohol is in common drinks, particularly when measures or strengths vary. Open the calculator. https://patient.info/healthy-living/alcohol-units-calculator 48dNplbSexYJRGgOvoMC5I 2026-02-09T00:00:00.000Z The Greene Menopause Scale is a self-assessment questionnaire used to explore how menopausal and perimenopausal symptoms are affecting you. It focuses on the severity and day-to-day impact of symptoms rather than on diagnosing menopause itself. Many people find it helpful as a way to put words and structure around changes they may already be noticing, particularly when symptoms are varied or difficult to describe in a short appointment. Open the calculator. https://patient.info/womens-health/greene-menopause-scale Ud2OfSbhciPgTFhjkt7IC 2026-02-07T00:00:00.000Z Use this HbA1c converter to switch results between the mmol/mol units used in the UK and the percentage (%) units still used in some other countries and older test reports. HbA1c reflects your average blood glucose levels over the past 2–3 months and is commonly used to diagnose and monitor diabetes. Open the calculator. https://patient.info/diabetes/hba1c-converter 48W8gqIZpAL4kXEJOI0drK 2026-02-07T00:00:00.000Z