Iran has state-of-the-art medical facilities in all its major cities but poor in remote areas. Many health professionals speak some English. Make sure you have adequate travel health insurance and accessible funds to cover the cost of any medical treatment abroad and repatriation.
If you need emergency medical assistance during your trip, dial 110 or 115 and ask for an ambulance. You should contact your insurance/medical assistance company promptly if you are referred to a medical facility for treatment.
Tap Water is safe to drink in most of the country and especially the cities. Bottled mineral water (āb ma’dani) is widely available. Also, on many streets and sites, public water fridges are installed to provide drinking water.