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Methadone Hydrochloride vs Keflex for a female patient aged 51

Summary: 2,702 female patients aged 51 (±5) who take the same drugs are studied.

This is personalized comparison of Methadone Hydrochloride vs Keflex for a female aged 51. The study is created by eHealthMe based on reports from FDA and social media.


What are the drugs

Methadone hydrochloride (latest outcomes from 2,854 users) has active ingredients of methadone hydrochloride. It is often used in pain.

Keflex (latest outcomes from 5,992 users) has active ingredients of cephalexin. It is often used in infection.

On Mar, 3, 2015: 2,702 female patients aged 45 who take the same drugs are studied in Methadone Hydrochloride vs Keflex

Information of patient in study:

GenderAgeReason for the drug
Female45tooth ache

Drugs to compare:

Methadone Hydrochloride methadone hydrochloridenot specified
Keflex cephalexinnot specified

eHealthMe real world results:

For females aged 45 (±5):

Most common side effects:

(click on each outcome to view in-depth analysis, incl. how people recovered)
Methadone HydrochlorideKeflex
Nausea (feeling of having an urge to vomit)Pain
Drug ToxicityNausea (feeling of having an urge to vomit)
PainFatigue (feeling of tiredness)
DepressionHeadache (pain in head)
Fatigue (feeling of tiredness)Anaemia (lack of blood)
Dyspnoea (difficult or laboured respiration)Arthralgia (joint pain)
Completed Suicide (act of taking one's own life)Chest Pain
Oedema Peripheral (superficial swelling)Oedema Peripheral (superficial swelling)
Somnolence (a state of near-sleep, a strong desire for sleep)Diarrhoea

Most common side effects experienced by people in long term use:

(click on each outcome to view in-depth analysis, incl. how people recovered)
Methadone HydrochlorideKeflex
Pseudoporphyria (skin changes consistent with one of the porphyrias, but laboratory tests do not detect significant abnormalities)Anxiety
Arthritis (form of joint disorder that involves inflammation of one or more joints)Suicide Attempt
DepressionMajor Depression (a mood state that goes well beyond temporarily feeling sad or blue. it is a serious medical illness that affects one's thoughts, feelings)
ConstipationIntentional Overdose
Fatigue - Chronic (long feeling of tiredness)Depression
Facial PainInsomnia (sleeplessness)
Memory LossMemory Impairment
Facial Nerve Palsy (paralysis of face nerve)Panic Attack
Pelvic DiscomfortMental Disorder (a psychological term for a mental or behavioural pattern or anomaly that causes distress or disability)

Drug effectiveness:

not at allsomewhatmoderatehighvery high
Methadone Hydrochloride1.27%30.38%30.38%26.58%11.39%

How to use the study: print a copy of the study and bring it to your health teams to ensure drug risks and benefits are fully discussed and understood.

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Side effects in real world:

On eHealthMe, Methadone Hydrochloride (methadone hydrochloride) is often used to treat pain. Keflex (cephalexin) is often used to treat infection. Find out below the conditions the drugs are used for, how effective they are, and any alternative drugs that you can use to treat those same conditions.

What is the drug used for and how effective is it:

Other drugs that are used to treat the same conditions:

Recent related drug comparison:

NOTE: The study is based on active ingredients. Other drugs that have the same active ingredients are also considered.

WARNING: Please DO NOT STOP MEDICATIONS without first consulting a physician since doing so could be hazardous to your health.

DISCLAIMER: All material available on is for informational purposes only, and is not a substitute for medical advice, diagnosis, or treatment provided by a qualified healthcare provider. All information is observation-only, and has not been supported by scientific studies or clinical trials unless otherwise stated. Different individuals may respond to medication in different ways. Every effort has been made to ensure that all information is accurate, up-to-date, and complete, but no guarantee is made to that effect. The use of the eHealthMe site and its content is at your own risk.

You may report adverse side effects to the FDA at or 1-800-FDA-1088 (1-800-332-1088).

If you use this eHealthMe study on publication, please acknowledge it with a citation: study title, URL, accessed date.


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