Modifiers matching alkaloid:

• poisonous,
• simple,
• hydrophobic,
• addictive,
• bitter,
• important,
• toxic,
• active,
• basic,
• stimulating,
• anticholinergic,
• harmful,
• soluble,
• psychoactive,
• natural,
• potent,

Simple categories matching anticholinergic:

• medicine,
• alkaloid,
• medication,
• agent,
• salt,
• compound,
• mydriatic,
• substance,