Can taking two tablets of Telmisartan HCT by mistake have serious consequences for my health?

The most significant symptoms of telmisartan overdose were a severe decrease in blood pressure and tachycardia, which is an increased heart rate. Patients also reported slow heart rate, dizziness, vomiting.

Overdose with hydrochlorothiazide may be manifested by nausea and somnolence and frequent urination.

In your case, an overdose means taking only one more tablet.
Serious complications are more likely to occur if the patient has taken a significant amount of tablets at one time or regularly takes a higher dose than prescribed.

Remember that if you are not sure if you have taken a tablet, it is better to skip it and go back to taking it at the usual time than to take too much of it.

If you experience any symptoms that concern you, please contact your doctor.

If you are unable to contact your doctor, you can use the teleconsultation here:

https://www.gdziepolek.pl/telekonsultacja

Here you can check the availability of the drug with the possibility of booking it at the pharmacy: 

https://www.gdziepolek.pl/produkty/89386/telmizek-hct-40-mg-12-5-mg-tabletki/apteki