The phrase "certain pharmaceuticals" refers to specific medications or drugs used for medical purposes. It implies that only particular or specific types of pharmaceuticals are being referred to, rather than all medications. Full definition
The cause of this are our soils being depleted, consuming too much sugar, alcohol, caffeine, stress, and taking certain pharmaceutical drugs. (mindbodyoasis.com)
Even certain pharmaceutical medications can contain heavy metals which can build up in mom's tissues, and impact her breastmilk. (babygaga.com)
Certain pharmaceutical drugs common among older people may hinder progress. (KetoDietApp.com)