Generic for promethazine?

Promethazine is already the generic name. The common generic form is promethazine hydrochloride (promethazine HCl). Brand-name example: Phenergan. It’s an antihistamine used for allergies, nausea/mickosis, and sometimes as a sedative. It’s available in tablets, syrup, suppositories, and injectable forms. There are also combination products like promethazine with codeine, which are prescription-only. If you had a specific product or dose in mind, tell me and I can tailor the info.