I need a Zpack antibiotic for someone in Jerusalem.
Anywhere I can get it still before Shabbos?
Not that its going to help you now, but for future reference, theres always a "merkachat toran" open with late hours somewhere in JLM. There should be a visible sign in the front of any closed pharmacy with the details of that week/months schedual of wich one is which day.
There are also many medicine gemachim (Yes, they will give you perscription only medicine), check a newcomers guide or hamadrich hachareidi
Many chain pharmacies are open till 4 or 5 on summer fridays.