In the body
Heat, training and dehydration
Signs of heat illness and dehydration, and how fluids, training and these medicines fit together.
Training in the heat, sport in the sun, sauna and hangovers all make you lose fluid, and so do vomiting and diarrhea. First, the signs that need care.
When to get care
Now
In the heat or while training, if your skin is hot and dry, or you get confused, lose coordination, have a seizure or faint, call emergency services now.
The same if you still feel unwell after 30 minutes of rest in the shade with fluids.
Now
In the heat or while training, if you get dizzy, a headache, nausea, heavy sweating, cramps or strong thirst, stop now: move somewhere cool, drink water and cool your skin.
Now
In the heat or while training, if dizziness, headache, nausea, heavy sweating, cramps or strong thirst don't ease within 30 minutes of cooling down, call emergency services now.
Now
If you have chest pain or tightness that may spread to your arm, neck or jaw, call emergency services now. Don't drive yourself.
The same with strong shortness of breath, cold sweat, or pale or grayish skin. It isn't a side effect of these medicines, but it's an emergency for anyone.
Now
If you faint, feel confused or are barely peeing, call emergency services now.
Losing a lot of fluid can harm the kidneys. Training, sport in the sun, heat, sauna and hangovers all add to the loss.
Now
If you use insulin or a sulfonylurea and get cold sweats, shakiness, sudden hunger, a racing heart or blurred vision, follow your doctor's low blood sugar plan right away.
Sulfonylureas include glibenclamide (glyburide), glimepiride and gliclazide.
Now
If someone on insulin or a sulfonylurea becomes confused, faints, has a seizure, or can't be woken after drinking, call emergency services now.
Heavy drinking, especially without eating, and hard training without adjusting food are known triggers of low blood sugar for them.
Today
If vomiting or diarrhea won't let you keep fluids down, get care today, from your doctor or an urgent care service.
The same if vomiting lasts over 2 days, diarrhea over 7, there's blood in your stool, or dark, scant pee and dizziness when standing don't improve with oral rehydration salts.
What's known
None of the US or European labels reviewed mentions heat, training or sauna. What they do mention is fluid loss: vomiting and diarrhea can dry you out and harm the kidneys, mostly when starting or after a dose increase.
The European label asks people to take precautions to avoid losing fluid, and the Brazilian label of tirzepatide says it's important to drink more fluids.
Energy can dip: tiredness affected up to about 1 in 10 people in the trials behind the labels. On days with vomiting, diarrhea or dizziness, training can wait.
If you train with a heart rate watch: these medicines can raise your resting heart rate by a few beats per minute.
What usually helps
- Drinking through the day, not only during training
- More fluids on days with vomiting, diarrhea, heat, sauna or a hangover
- Stopping at the first signs of heat exhaustion: somewhere cool, water, cool skin
To take to your appointment
- I train hard and sweat a lot. Is there anything about fluids or my kidneys I should watch on this medicine?
Free, no account and nothing to install.