Online visit · $45 flat · No video
Altitude sickness medicine online
Yes, you can get altitude sickness medicine online. Bidwell Health offers a $45 asynchronous visit (no video, no subscription) for adults in eligible states heading to high altitude, Cusco, Machu Picchu, Colorado, Kilimanjaro, and similar. A licensed nurse practitioner reviews your trip and, when it is clinically appropriate, sends acetazolamide (Diamox) to your local pharmacy, where you pay the generic price with nothing added.
I have had altitude sickness firsthand. That is me at sunrise on Acatenango in Guatemala, after climbing past 13,000 feet in a day, and I have felt it again on Colorado 14ers above 14,000 feet: the pounding headache, the sleepless night, the breathlessness on the final push. Acetazolamide and a sensible ascent are what make those trips possible, and they are exactly what we screen for and prescribe here. I built this because I have been the traveler trying to sort this out before a climb.
Bidwell Cranage, Bidwell Health founder, on Acatenango (Guatemala). One of 26 countries traveled.
What we prescribe
Acute mountain sickness (the headache, nausea, fatigue, and poor sleep that hit when you go up too fast) is your body struggling to acclimatize. Acetazolamide (Diamox) speeds that acclimatization up.
| Medication | What it does | How you get it |
|---|---|---|
| Acetazolamide (Diamox) | Helps you acclimatize faster; prevents and reduces acute mountain sickness | Prescription, this $45 visit, sent to your pharmacy |
It does not replace a smart ascent. Going up gradually, sleeping at a lower elevation than your daytime high point, and staying hydrated still matter. Acetazolamide makes the climb safer, it does not make a reckless one safe.
Who it is for, and who it is not
A good fit if you
- Are 18 to 64 and in a state we serve
- Are traveling above roughly 8,000 feet (Cusco, Colorado peaks, Kilimanjaro, etc.)
- Have a fast ascent planned or have had altitude sickness before
- Want to prevent the headache and nausea that can ruin a trip
Not a fit if you
- Have had a severe sulfa reaction (anaphylaxis, Stevens-Johnson)
- Have severe kidney or liver disease
- Have sickle cell trait or disease
- Are pregnant or breastfeeding
- Already have warning signs (confusion, trouble walking, breathlessness at rest)
Why we screen it this way
Acetazolamide is a non-antibiotic sulfonamide. A common myth is that any sulfa allergy rules it out, but the Wilderness Medical Society's 2024 guidelines call the cross-reaction risk "extremely low" and contraindicate it only after a severe reaction like anaphylaxis or Stevens-Johnson syndrome. So we ask how severe your sulfa reaction was rather than declining everyone, and we refer you if it was severe. We also screen out sickle cell, because the combination of altitude hypoxia and a carbonic-anhydrase-inhibitor diuretic can trigger a crisis. And if you already have red-flag symptoms, that is an emergency, not an online visit.
How it works
- 1. Tell us your trip (destination, how high you will sleep, how fast you ascend) and your health. About 3 minutes, no video.
- 2. A licensed nurse practitioner reviews your answers, usually the same day.
- 3. If it is clinically appropriate, we send acetazolamide to your pharmacy. Start it the day before you ascend.
FAQ
Can I get altitude sickness medicine online?
Yes. Bidwell Health offers a $45 asynchronous online visit, no video and no subscription, for adults in eligible states traveling to high altitude. A licensed nurse practitioner reviews your trip and health and sends acetazolamide (Diamox) to your pharmacy when clinically appropriate.
What medication prevents altitude sickness?
Acetazolamide (Diamox) is the standard medication to prevent and reduce acute mountain sickness. It helps your body acclimatize faster. It is usually started the day before ascent and continued for the first couple of days at altitude.
Can I take acetazolamide if I have a sulfa allergy?
Often, yes. Acetazolamide is a non-antibiotic sulfonamide, and the Wilderness Medical Society notes the risk of cross-reaction is extremely low; it is only contraindicated after a severe reaction such as anaphylaxis or Stevens-Johnson syndrome. We screen for the severity of your reaction and refer you if it was severe.
How much does an online altitude sickness visit cost?
Bidwell Health charges a flat $45 for the online visit, with no video and no subscription. You pay the generic acetazolamide price at your own pharmacy, with no markup added by us.
Learn more
- When to start Diamox before altitude
- Do I need altitude medicine for Cusco and Machu Picchu?
- Do I need Diamox for Kilimanjaro?
- Altitude sickness in Colorado
- Altitude sickness at Grand Teton
- Altitude sickness in the Alps
- Best online travel medicine 2026
Last reviewed: June 18, 2026 · References: Wilderness Medical Society Clinical Practice Guidelines for Acute Altitude Illness (2024); CDC Yellow Book (High-Altitude Travel and Altitude Illness); DailyMed acetazolamide label.