Hello. Would it be okay to double dose on antihistamines on a night (10 mg each)?
As a bit of context to my question, I take 10mg of cetirizine every night, but in all honesty, it barely works. Now later on in May I’m flying to Ukraine to watch the Champions League final, which is bound to trigger my cholinergic urticaria whilst at the game.
I was wondering if it would be okay to take 2 cetirizine tablets (20mg) on that night just to help me through the match so I can actually enjoy it. Or would it be harmful and worse than it is good?