Methocarbamol and Tamiflu drug interactions - a phase IV clinical study of FDA data

Summary:

Drug interactions are reported among people who take Methocarbamol (methocarbamol) and Tamiflu (oseltamivir phosphate). Common drug interactions include cerebral artery embolism among females and bronchitis among males.

The phase IV clinical study analyzes what interactions people have when they take Methocarbamol and Tamiflu. It is created by eHealthMe based on reports of 62 people who take the same drugs from the FDA, and is updated regularly.

What is Methocarbamol?

Methocarbamol has active ingredients of methocarbamol. It is often used in muscle spasms. eHealthMe is studying from 17,766 Methocarbamol users. Check the latest studies of Methocarbamol.

What is Tamiflu?

Tamiflu has active ingredients of oseltamivir phosphate. It is often used in the flu. eHealthMe is studying from 22,209 Tamiflu users. Check the latest studies of Tamiflu.

On Jul, 20, 2026

62 people who take Methocarbamol and Tamiflu together, and have interactions are studied.

Methocarbamol and Tamiflu drug interactions.

What are the common drug interactions of Methocarbamol and Tamiflu, by gender? *:

female:

Cerebral artery embolism (sudden blocking of an artery by a clot or foreign material)
Cerebral haemorrhage (bleeding within the brain)
Ear infection
Gastrooesophageal reflux disease (stomach contents (food or liquid) leak backwards from the stomach into the oesophagus)
Haemorrhagic transformation stroke (haemorrhages develop inside areas of ischemia)
Hair colour changes
Hair disorder
Hyperhidrosis (abnormally increased sweating)
Infection
Injury

male:

Bronchitis (inflammation of the mucous membrane in the bronchial tubes)
Chronic kidney disease
Emotional distress
Heart rate increased
Hypersensitivity
Intervertebral disc degeneration (spinal disc degeneration)
Osteoporosis (bones weak and more likely to break)
Post-traumatic stress disorder
Renal failure (kidney dysfunction)
Sedation

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

0-1:

n/a

2-9:

n/a

10-19:

n/a

20-29:

Cardiac flutter (abnormal heart rhythm)
Hyperhidrosis (abnormally increased sweating)
Alopecia (absence of hair from areas of the body)
Anxiety
Asthma
Cholecystitis chronic (long lasting infection of gallbladder)
Emotional distress
Gallbladder injury
Gallbladder operation
General physical health deterioration (weak health status)

30-39:

Dehydration (dryness resulting from the removal of water)
Drug toxicity
Ear infection
Embolism arterial (blood clot that has travelled through your arteries and become stuck)
Fall
Food poisoning (poison in food)
Gastroenteritis viral (inflammation of stomach and intestine caused by virus infection)
Headache (pain in head)
Hepatomegaly (abnormal enlargement of the liver)
Idiopathic intracranial hypertension (elevated cerebrospinal fluid pressure of unknown cause)

40-49:

Bronchitis (inflammation of the mucous membrane in the bronchial tubes)
Chronic kidney disease
Sinusitis (inflammation of sinus)
Anhedonia (inability to experience pleasure from activities usually found enjoyable)
Anxiety
Bacterial infection
Bone density decreased
Circadian rhythm sleep disorder (family of sleep disorders affecting, among other things, the timing of sleep)
Dizziness
Drug level increased

50-59:

Chronic kidney disease
Anhedonia (inability to experience pleasure from activities usually found enjoyable)
Anxiety
Bone density decreased
Emotional distress
Osteonecrosis (death of bone)
Renal failure (kidney dysfunction)
Alopecia (absence of hair from areas of the body)
Gastrooesophageal reflux disease (stomach contents (food or liquid) leak backwards from the stomach into the oesophagus)
Hair colour changes

60+:

Pain in extremity
Arthralgia (joint pain)
Stress fracture (fracture of a bone caused by repeated (rather than sudden) mechanical stress)
Vitamin d deficiency
Cheilitis (infection of lips)
Deep vein thrombosis (blood clot in a major vein that usually develops in the legs and/or pelvis)
Drug eruption (adverse drug reaction of the skin)
Erythema (redness of the skin)
Erythema multiforme (a type of hypersensitivity reaction)
Fracture displacement

What are the existing conditions these people have? *

Gastroesophageal Reflux Disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 16 people, 25.81%
Pain: 14 people, 22.58%
High Blood Pressure: 14 people, 22.58%
Narcolepsy (brain's inability to regulate sleep-wake cycles normally): 14 people, 22.58%
High Blood Cholesterol: 13 people, 20.97%
Hypersensitivity: 10 people, 16.13%
Insomnia (sleeplessness): 9 people, 14.52%
Infection: 8 people, 12.90%
Cataplexy (loss of muscle tone accompanied by full conscious awareness): 8 people, 12.90%
Indigestion: 7 people, 11.29%

* Approximation only. Some reports may have incomplete information.

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