If you are planning to travel to high-altitude destinations such as mountainous regions, it is important to understand the potential health risks associated with altitude changes. At Beaconsfield Pharmacy, we provide travel health advice and information about medications that may help travellers prepare for high-altitude environments.
Our pharmacy team can offer guidance on altitude sickness prevention, symptoms, and treatment options so you can enjoy your trip safely.
What is altitude sickness? Altitude sickness, also referred to as mountain sickness or acute mountain sickness (AMS), occurs when individuals ascend to high altitudes too rapidly, leading to a lack of oxygen and subsequent feelings of sickness, dizziness, and shortness of breath.
Altitude sickness, also referred to as mountain sickness, occurs when individuals ascend to high altitudes too rapidly, leading to a lack of oxygen and subsequent feelings of sickness, dizziness, and shortness of breath. Symptoms typically manifest within 24 hours of reaching higher altitudes and usually subside as the body adjusts.
Altitude sickness encompasses different severities, graded on a scale. Acute Mountain Sickness (AMS) is the mildest form, often likened to a hangover, while High Altitude Pulmonary Edema (HAPE) and High Altitude Cerebral Edema (HACE) are more severe and can be life-threatening, involving fluid buildup in the lungs and brain, respectively.
Most individuals experience the mildest form of altitude sickness, characterized by symptoms such as nausea, vomiting, and loss of appetite, along with dizziness, headache, and loss of energy. Severe forms may result in confusion, chest tightness, and difficulty walking, necessitating immediate medical attention.
Altitude sickness is primarily caused by ascending to high altitudes too rapidly, where air pressure is lower and oxygen levels are reduced. The sudden change in atmospheric conditions overwhelms the body’s ability to adjust, resulting in symptoms like sickness, lightheadedness, and shortness of breath.
Factors influencing altitude sickness include the rate and altitude of ascent, sleeping altitude, age, and underlying medical conditions. While anyone can be affected, young individuals and those ascending rapidly are at higher risk. Pre-existing medical conditions may exacerbate susceptibility but do not guarantee its occurrence.
When travelling to mountainous destinations, it is important to plan ahead and understand how your body may react to changes in altitude.
Travellers can reduce the risk of altitude sickness by:
A healthcare professional or pharmacist can also advise on medications that may help prevent or manage symptoms during travel.
Altitude sickness medication, such as Acetazolamide, is available to alleviate symptoms and prevent sickness as the body acclimatizes to different pressures and altitudes. Returning to lower elevations is the quickest way to relieve symptoms, but this may not always be feasible on organized trips.
To prevent altitude sickness, ascend gradually, allowing the body time to adjust to reduced oxygen levels. Recognizing early symptoms and promptly taking medication can help manage symptoms effectively. In severe cases, contacting emergency services and descending to lower elevations is imperative for immediate relief and safety.
Before travelling abroad, it is always recommended to seek travel health advice from a healthcare professional. Our pharmacy team can help travellers understand common travel health risks and discuss suitable medications when appropriate.
If you are planning travel to high-altitude destinations, speaking with a pharmacist beforehand can help you prepare properly and travel more safely.
Travellers from these areas can contact us or visit Beaconsfield Pharmacy in Walthamstow for travel health advice before their trip.
Altitude sickness occurs when the body struggles to adjust to lower oxygen levels at high altitudes, causing symptoms such as headache, dizziness, nausea, and fatigue.
Symptoms typically manifest within 6 to 24 hours of reaching higher altitudes (usually above 2,500 meters or 8,000 feet) as the body encounters lower air pressure and reduced oxygen levels. Mild symptoms often subside within 24 to 48 hours as the body naturally adjusts, but can be managed with preventative care and treatments like Acetazolamide.
Anyone can be affected regardless of physical fitness, but those ascending rapidly, sleeping at high altitudes, or individuals with a history of altitude illness are at higher risk.
Yes. Altitude sickness can be effectively prevented by ascending gradually, staying well-hydrated, avoiding heavy alcohol consumption, allowing proper acclimatization time, and utilizing preventative travel medications such as Acetazolamide when advised by a pharmacist or healthcare professional.
Immediate medical attention and emergency descent are necessary if severe symptoms develop, such as confusion, difficulty walking (ataxia), persistent shortness of breath at rest, chest tightness, or signs of HAPE/HACE (fluid buildup in the lungs or brain).
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