PHENAPHEN W/ CODEINE NO. 4

Clinical safety rating: avoid

CNS depressants including alcohol and benzodiazepines increase sedation risk Life-threatening respiratory depression may occur especially in CYP2D6 ultra-rapid metabolizers.

How it works

Mechanism information is still being processed. Check the DailyMed link in the sidebar for the official prescribing information.

Dosing & administration

Tablet 30 mg - Oral

Dosage form	CAPSULE
Renal impairment	Consult protocols for adjustment.
Liver impairment	Consult protocols for adjustment.

Use during pregnancy

1st trimester	Consult provider
2nd trimester	Consult provider
3rd trimester	Consult provider

Clinical note

CNS depressants including alcohol and benzodiazepines increase sedation risk Life-threatening respiratory depression may occur especially in CYP2D6 ultra-rapid metabolizers.

FDA category

Category Positive

Warnings & precautions

When not to use it

Constipation

Drug interactions

Loading safety data…

PHENAPHEN W/ CODEINE NO. 4

Clinical safety rating: avoid

CNS depressants including alcohol and benzodiazepines increase sedation risk Life-threatening respiratory depression may occur especially in CYP2D6 ultra-rapid metabolizers.

How it works

Mechanism information is still being processed. Check the DailyMed link in the sidebar for the official prescribing information.

Dosing & administration

Tablet 30 mg - Oral

Dosage form	CAPSULE
Renal impairment	Consult protocols for adjustment.
Liver impairment	Consult protocols for adjustment.

Use during pregnancy

1st trimester	Consult provider
2nd trimester	Consult provider
3rd trimester	Consult provider

Clinical note

CNS depressants including alcohol and benzodiazepines increase sedation risk Life-threatening respiratory depression may occur especially in CYP2D6 ultra-rapid metabolizers.

FDA category

Category Positive

Warnings & precautions

When not to use it

Constipation

Drug interactions

Loading safety data…