Assertion: periwinkle's alkaloid | /r/HasProperty | vincristine
Facets:
Source sentences:
text: Like many drugs used in chemotherapy, both alkaloids (vincristine and vinblastine) produce side-effects such as nausea and hair loss.
text: The two powerful alkaloids present in Madagascar periwinkle are called vincristine and vinblastine.
text: Another pharmacologically important alkaloid is vincristine sulphate or vincristine, sold as Oncovin.