DrugDigest: Zalcitabine: Information on dosage, usage, side effects, interactions, and drug comparisons, including generics when available. Sold under brand names such as: Hivid, ddC, and dideoxycytidine.Hivid: Full prescribing information from RxList.HIVID - Zalcitabine Roche USA: Official HIVID site which contains a link to the package insert in PDF format.Zalcitabine: a.k.a. ddc, Hivid.