Nononono, not just you. When you're feeling weak and sickly anyway, you don't need something that makes you feel worse just by existing...

My childhood doctor (an old-fashioned sort) used to prescribe something called 'linctus' for anything he didn't think life-threatening - I always suspected it was on the grounds that the unlucky patient would will themselves better when faced with swallowing this thick, black, rusty-flavoured 'tonic'...