Pamabron is a common over-the-counter diuretic used for relief of menstrual-associated symptoms. The active diuretic ingredient in pamabrom is 8-bromotheophylline. Pamabrom is available in combination with acetaminophen (paracetamol) for various conditions such as back pain and menstrual relief. The acetaminophen helps reduce menstrual pains and the pamabrom reduces associated bloating Pamabron is a common over-the-counter diuretic used for relief of menstrual-associated symptoms. The active diuretic ingredient in pamabrom is 8-bromotheophylline. Pamabrom is available in combination with acetaminophen (paracetamol) for various conditions such as back pain and menstrual relief. The acetaminophen helps reduce menstrual pains and the pamabrom reduces associated bloating