This list is far from complete and will be grow during time:
Avipro Probiotica (Needed for antibiotics) Amazon (UK) Medpets (DE)
Vetark Critical Care powder (Needed when a bird needs all the nutrition with as little feeding as possible. Eg after surgery Amazon (UK)
Liquid calcium and vitamin D3 (for birds with acute vitamin D3 deficiency) Amazon (UK) Amazon (SE )
Harkers Coxitabs (against Canker) Amazon (SE)
Various products against Canker Giantel (NL)
Spot-on for insertion (against air sac mites, fleas, lice, mites and other parasites) Medpets (DE)
Alternate page to order: https: // www. junai.nl/ (NL)
F10 ointment https://parrotplanet.pl (PL)