Nausea

50mg cyclizine (UK: pharmacy-only, no prescription needed). Alternative: 10–20mg domperidone (prescription in some countries). Ginger (1g) if you want to go OTC/natural. For severe or persistent nausea: 4–8mg ondansetron (Zofran, prescription) — originally developed for chemo patients, it’s the nuclear option and works extremely well. Dissolves on the tongue, kicks in within 15–30 min. Constipation is the main side effect.