For more than three decades, the pharmaceutical sector has been protected from tariffs by a World Trade Organization agreement designed to improve access to life-saving drugs. But as US President Donald Trump prepares to launch a new wave of levies aimed at reducing America’s trade deficits and bringing manufacturing back to home soil, pharmaceuticals are high on the list of targets. On Friday, the president said specific pharma tariffs were coming “soon.” He gave no details on what those tariffs would look like or exactly how existing blanket levies on goods from China, Canada and Mexico — and upcoming “reciprocal” tariffs on most of the world — apply to the sector. But he has previously singled out Ireland, home to manufacturing plants for most of the world’s top 10 pharmaceutical companies.