| ATC | C01CA | Adrenergic and dopaminergic agents | ATC1-4 | | phenylephrine |
| ATC | C05AX | Other agents for treatment of hemorrhoids and anal fissures for topical use | ATC1-4 | | phenylephrine |
| ATC | R06AE | Piperazine derivatives | ATC1-4 | | chlorcyclizine |
| ATC | R01BA | Sympathomimetics | ATC1-4 | | phenylephrine |
| ATC | S01FB | Sympathomimetics excl. antiglaucoma preparations | ATC1-4 | | phenylephrine |
| ATC | S01GA | Sympathomimetics used as decongestants | ATC1-4 | | phenylephrine |
| ATC | R01AB | Sympathomimetics, combinations excl. corticosteroids | ATC1-4 | | phenylephrine |
| ATC | R01AA | Sympathomimetics, plain | ATC1-4 | | phenylephrine |
| FDASPL | N0000186105 | alpha-1 Adrenergic Agonist | EPC | has_epc | phenylephrine |
| MEDRT | D010656 | Phenylephrine | CHEM | has_ingredient | phenylephrine |
| MEDRT | D010656 | Phenylephrine | CHEM | has_ingredient | phenylephrine hydrochloride |
| MEDRT | D010879 | Piperazines | CHEM | has_ingredient | chlorcyclizine |
| MEDRT | D013447 | Sulfites | CHEM | ci_chemclass | phenylephrine |
| MEDRT | D013447 | Sulfites | CHEM | ci_chemclass | phenylephrine hydrochloride |
| MEDRT | D004342 | Drug Hypersensitivity | DISEASE | ci_with | chlorcyclizine hydrochloride |
| MEDRT | D004342 | Drug Hypersensitivity | DISEASE | ci_with | phenylephrine hydrochloride |
| MEDRT | D004342 | Drug Hypersensitivity | DISEASE | ci_with | phenylephrine |
| MEDRT | D004342 | Drug Hypersensitivity | DISEASE | ci_with | chlorcyclizine |
| MEDRT | D005401 | Fissure in Ano | DISEASE | may_treat | phenylephrine |
| MEDRT | D005401 | Fissure in Ano | DISEASE | may_treat | phenylephrine hydrochloride |
| MEDRT | D005902 | Glaucoma, Open-Angle | DISEASE | may_treat | phenylephrine |
| MEDRT | D005902 | Glaucoma, Open-Angle | DISEASE | may_treat | phenylephrine hydrochloride |
| MEDRT | D006484 | Hemorrhoids | DISEASE | may_treat | phenylephrine hydrochloride |
| MEDRT | D006484 | Hemorrhoids | DISEASE | may_treat | phenylephrine |
| MEDRT | D006973 | Hypertension | DISEASE | ci_with | phenylephrine hydrochloride |
| MEDRT | D006973 | Hypertension | DISEASE | ci_with | phenylephrine |
| MEDRT | D007022 | Hypotension | DISEASE | may_treat | phenylephrine |
| MEDRT | D007022 | Hypotension | DISEASE | may_treat | phenylephrine hydrochloride |
| MEDRT | D009041 | Motion Sickness | DISEASE | may_treat | chlorcyclizine |
| MEDRT | D009041 | Motion Sickness | DISEASE | may_treat | chlorcyclizine hydrochloride |
| MEDRT | D015878 | Mydriasis | DISEASE | induces | phenylephrine |
| MEDRT | D015878 | Mydriasis | DISEASE | induces | phenylephrine hydrochloride |
| MEDRT | D011537 | Pruritus | DISEASE | may_treat | chlorcyclizine |
| MEDRT | D011537 | Pruritus | DISEASE | may_treat | chlorcyclizine hydrochloride |
| MEDRT | D011538 | Pruritus Ani | DISEASE | may_treat | phenylephrine |
| MEDRT | D011538 | Pruritus Ani | DISEASE | may_treat | phenylephrine hydrochloride |
| MEDRT | D012221 | Rhinitis, Allergic, Perennial | DISEASE | may_treat | chlorcyclizine hydrochloride |
| MEDRT | D012221 | Rhinitis, Allergic, Perennial | DISEASE | may_treat | chlorcyclizine |
| MEDRT | D012223 | Rhinitis, Vasomotor | DISEASE | may_treat | phenylephrine hydrochloride |
| MEDRT | D012223 | Rhinitis, Vasomotor | DISEASE | may_treat | phenylephrine |
| MEDRT | D012772 | Shock, Septic | DISEASE | may_treat | phenylephrine hydrochloride |
| MEDRT | D012772 | Shock, Septic | DISEASE | may_treat | phenylephrine |
| MEDRT | D013617 | Tachycardia, Supraventricular | DISEASE | may_treat | phenylephrine hydrochloride |
| MEDRT | D013617 | Tachycardia, Supraventricular | DISEASE | may_treat | phenylephrine |
| MEDRT | D017180 | Tachycardia, Ventricular | DISEASE | ci_with | phenylephrine |
| MEDRT | D017180 | Tachycardia, Ventricular | DISEASE | ci_with | phenylephrine hydrochloride |
| MEDRT | D014839 | Vomiting | DISEASE | may_treat | chlorcyclizine hydrochloride |
| MEDRT | D014839 | Vomiting | DISEASE | may_treat | chlorcyclizine |
| MEDRT | N0000000209 | Adrenergic alpha-Agonists | MOA | has_moa | phenylephrine |
| MEDRT | N0000000209 | Adrenergic alpha-Agonists | MOA | has_moa | phenylephrine hydrochloride |
| MEDRT | N0000000190 | Histamine H1 Receptor Antagonists | MOA | has_moa | chlorcyclizine hydrochloride |
| MEDRT | N0000000190 | Histamine H1 Receptor Antagonists | MOA | has_moa | chlorcyclizine |
| MEDRT | N0000008371 | Conjunctival Arterial Vasoconstriction | PE | has_pe | phenylephrine |
| MEDRT | N0000008371 | Conjunctival Arterial Vasoconstriction | PE | has_pe | phenylephrine hydrochloride |
| MEDRT | N0000008657 | Decreased Histamine Activity | PE | has_pe | chlorcyclizine hydrochloride |
| MEDRT | N0000008657 | Decreased Histamine Activity | PE | has_pe | chlorcyclizine |
| MEDRT | N0000008896 | Decreased Nasal and Sinus Secretions | PE | has_pe | phenylephrine |
| MEDRT | N0000008896 | Decreased Nasal and Sinus Secretions | PE | has_pe | phenylephrine hydrochloride |