Propecia
E468960
Propecia is a brand-name prescription medication (finasteride) primarily used to treat male pattern hair loss.
All labels observed (2)
How this entity was disambiguated
This entity first appeared as the object of triple T4784892 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Propecia Context triple: [Merck & Co., notableDrug, Propecia]
-
A.
Viagra
Viagra is a well-known prescription medication used to treat erectile dysfunction by increasing blood flow to the penis.
-
B.
Lamotrek
Lamotrek is a small atoll in the Federated States of Micronesia known for its traditional seafaring culture and navigational expertise.
-
C.
Truvada
Truvada is a prescription antiretroviral medication widely used both to treat HIV infection and as pre-exposure prophylaxis (PrEP) to help prevent HIV in high-risk individuals.
-
D.
Daypro
Daypro is a prescription nonsteroidal anti-inflammatory drug (NSAID) containing oxaprozin, used to relieve pain and inflammation in conditions such as osteoarthritis and rheumatoid arthritis.
-
E.
Denesuline
Denesuline are a First Nations people of the larger Dene cultural and linguistic group, traditionally inhabiting subarctic regions of northern Canada.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Propecia Target entity description: Propecia is a brand-name prescription medication (finasteride) primarily used to treat male pattern hair loss.
-
A.
Viagra
Viagra is a well-known prescription medication used to treat erectile dysfunction by increasing blood flow to the penis.
-
B.
Lamotrek
Lamotrek is a small atoll in the Federated States of Micronesia known for its traditional seafaring culture and navigational expertise.
-
C.
Truvada
Truvada is a prescription antiretroviral medication widely used both to treat HIV infection and as pre-exposure prophylaxis (PrEP) to help prevent HIV in high-risk individuals.
-
D.
Daypro
Daypro is a prescription nonsteroidal anti-inflammatory drug (NSAID) containing oxaprozin, used to relieve pain and inflammation in conditions such as osteoarthritis and rheumatoid arthritis.
-
E.
Denesuline
Denesuline are a First Nations people of the larger Dene cultural and linguistic group, traditionally inhabiting subarctic regions of northern Canada.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
brand-name medication
ⓘ
finasteride-containing product ⓘ prescription drug ⓘ |
| belongsToDrugClass | 5-alpha-reductase inhibitor ⓘ |
| commonSideEffect |
decreased libido
ⓘ
decreased semen volume ⓘ ejaculation disorder ⓘ erectile dysfunction ⓘ |
| contraindicatedIn | pregnant women ⓘ |
| effect |
can increase hair regrowth in some men
ⓘ
lowers scalp DHT levels ⓘ slows progression of hair loss ⓘ |
| effectOnPSA | reduces serum PSA levels ⓘ |
| effectReversesAfter | discontinuation ⓘ |
| hasActiveIngredient | finasteride ⓘ |
| hasFDAApprovalFor | treatment of male pattern hair loss in men ⓘ |
| hasGenericEquivalent | finasteride 1 mg tablets ⓘ |
| indicatedFor | adult men ⓘ |
| isAdministeredBy | oral route ⓘ |
| isDifferentFrom |
Proscar
ⓘ
linked to:
Propecia
|
| isFormulatedAs | oral tablet ⓘ |
| isMarketedBy | Merck & Co. ⓘ |
| isProtectedBy | brand name ⓘ |
| isTaken | once daily ⓘ |
| mayAffectLabTest | prostate-specific antigen (PSA) levels ⓘ |
| mechanismOfAction |
inhibits type II 5-alpha-reductase
ⓘ
reduces conversion of testosterone to dihydrotestosterone (DHT) ⓘ |
| mustBeUsed | continuously to maintain effect ⓘ |
| notIndicatedFor |
children
ⓘ
women ⓘ |
| possibleSideEffect |
anxiety
ⓘ
depression ⓘ gynecomastia ⓘ rash ⓘ testicular pain ⓘ |
| ProscarDoseIsTypically | 5 mg finasteride daily ⓘ |
| requires | prescription ⓘ |
| requiresCautionIn |
men with liver impairment
ⓘ
men with prostate cancer risk evaluation ⓘ |
| sharesActiveIngredientWith | Proscar ⓘ |
| shouldBeMonitoredBy | healthcare provider ⓘ |
| shouldNotBeHandledBy | pregnant women ⓘ |
| storageCondition | store at room temperature ⓘ |
| treats |
androgenetic alopecia in men
ⓘ
male pattern hair loss ⓘ |
| typicalDose | 1 mg finasteride once daily ⓘ |
| usedFor | long-term management of androgenetic alopecia in men ⓘ |
| warning | can cause birth defects in a male fetus if handled or ingested by pregnant women ⓘ |
| wasApprovedBy |
U.S. Food and Drug Administration
ⓘ
linked to:
Food and Drug Administration
|
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Propecia Description of subject: Propecia is a brand-name prescription medication (finasteride) primarily used to treat male pattern hair loss.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Propecia