So last night I took clarithromycin at 4pm- I have pneumonia, doctor called me and I said I took it at 4pm will I need to wait until tomorrow now to take it and she said no ideally I need 6 hours apart so take at 10/11pm - I took at 11:20pm and I've just googled (I know I shouldn't have) but it says under no circumstances should this be taken anything less than 8 hours!! I feel hideously sick and have an awful taste in my mouth. Have I overdosed? Sorry if this sounds irrational but I am worried now as google says never to take less than 8 hours and preferably 12!