Nolvadex is not and AI its a Serm.You can use one or the other for PCT but using Nolvadex lowers Airmidex's level by 27%.A doctor that specializes in Recovery told me he prefers a Serm over an AI for recovery.
DRUG INTERACTIONS
Tamoxifen
Co-administration of anastrozole and tamoxifen in breast cancer patients reduced anastrozole plasma concentration by 27%. However, the coadministration of anastrozole and tamoxifen did not affect the pharmacokinetics of tamoxifen or N-desmethyltamoxifen.