Salonpas and Norco drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Salonpas (menthol; methyl salicylate) and Norco (acetaminophen; hydrocodone bitartrate). Common drug interactions include aphonia among females and asthenia among males.

The phase IV clinical study analyzes what interactions people have when they take Salonpas and Norco. It is created by eHealthMe based on reports of 18 people who take the same drugs from the FDA, and is updated regularly.

What is Salonpas?

Salonpas has active ingredients of menthol; methyl salicylate. eHealthMe is studying from 630 Salonpas users. Check the latest studies of Salonpas.

What is Norco?

Norco has active ingredients of acetaminophen; hydrocodone bitartrate. It is often used in pain. eHealthMe is studying from 74,063 Norco users. Check the latest studies of Norco.

On Jul, 09, 2026

18 people who take Salonpas and Norco together, and have interactions are studied.

What are the common drug interactions of Salonpas and Norco, by gender? *:

female:

Aphonia (inability to produce voice)
Deafness bilateral
Arthritis (form of joint disorder that involves inflammation of one or more joints)
Arthropathy
Blepharospasm (any abnormal contraction or twitch of the eyelid)
Fatigue (feeling of tiredness)
Fibromyalgia (a long-term condition which causes pain all over the body)
Headache (pain in head)
Malaise (a feeling of general discomfort or uneasiness)
Tremor (trembling or shaking movements in one or more parts of your body)

male:

Asthenia (weakness)
Adverse drug reaction
Pancytopenia (medical condition in which there is a reduction in the number of red and white blood cells, as well as platelets)
Plasma cell myeloma (cancer that begins in plasma cells)
Ventricular extrasystoles (premature cardiac contraction)
Anaemia (lack of blood)
Decubitus ulcer (a chronic ulcer of the skin caused by prolonged pressure on it)
Dizziness
Drug ineffective
Dysphagia (a condition in which swallowing is difficult or painful)

What are the common drug interactions of Salonpas and Norco, by age (0-1 to 60+)? *:

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

n/a

30-39:

n/a

40-49:

Arthritis (form of joint disorder that involves inflammation of one or more joints)
Arthropathy
Blepharospasm (any abnormal contraction or twitch of the eyelid)
Fibromyalgia (a long-term condition which causes pain all over the body)
Cartilage injury
Fatigue (feeling of tiredness)
Gastritis erosive (a break in the surface layer of the membrane lining the stomach with infection)
Insomnia (sleeplessness)
Nausea (feeling of having an urge to vomit)
Papilloedema (optic disc swelling)

50-59:

n/a

60+:

Asthenia (weakness)
Headache (pain in head)
Dyspnoea (difficult or laboured respiration)
Failure to thrive (inadequate weight gain and physical growth in children)
Gait disturbance
Malnutrition (a condition that results from eating a diet in which certain nutrients are lacking)
Muscle twitching
Pancytopenia (medical condition in which there is a reduction in the number of red and white blood cells, as well as platelets)
Plasma cell myeloma (cancer that begins in plasma cells)
Somnolence (a state of near-sleep, a strong desire for sleep)

What are the existing conditions these people have? *

Cataplexy (loss of muscle tone accompanied by full conscious awareness): 9 people, 50.00%
Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 9 people, 50.00%
High Blood Pressure: 3 people, 16.67%
Stress And Anxiety: 1 person, 5.56%
Intervertebral Disc Degeneration (spinal disc degeneration): 1 person, 5.56%
Constipation: 1 person, 5.56%
Depression: 1 person, 5.56%
Dyslipidaemia (abnormal amount of lipids): 1 person, 5.56%
Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 1 person, 5.56%
Headache (pain in head): 1 person, 5.56%

* Approximation only. Some reports may have incomplete information.

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