Literature

Choose by Subheadings for Xanthine:

administration and dosage	adverse effects	agonists
analysis	antagonists and inhibitors	blood
cerebrospinal fluid	chemical synthesis	chemistry
classification	contraindications	diagnostic use
economics	history	immunology
isolation and purification	metabolism	pharmacokinetics
pharmacology	poisoning	radiation effects
standards	supply and distribution	therapeutic use
toxicity	urine