Years after he's had these drugs, I learned that everything he did to manage his excess saliva, including some positive side effects that came from other drugs, were making his constipation worse.
在他服用那些药物的几年之后， 我才知道他用来控制口水过量的所有方法， 包括其他一些曾起过积极副作用的药物， 都在同时恶化他的便秘问题。