Do you know why the anti histamine promethazine is available over the counter (in UK) but the antihistamine hydroxyzine isn’t?
Why is this? What is the difference between the two? Do you know? Thank you!
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Do you know why the anti histamine promethazine is available over the counter (in UK) but the antihistamine hydroxyzine isn’t?
Why is this? What is the difference between the two? Do you know? Thank you!