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Keflex vs Doxycycline Hyclate, a side effect and effectiveness comparison for a male patient aged 41

This is personalized comparison of Keflex vs Doxycycline Hyclate for a male aged 41. The study is created by eHealthMe based on reports from FDA and social media.

What are the drugs

Keflex (latest outcomes from 5,989 users) has active ingredients of cephalexin. It is often used in infection.

Doxycycline hyclate (latest outcomes from 2,398 users) has active ingredients of doxycycline hyclate. It is often used in acne.

What is the symptom

Mood Changes has been reported by people with energy increased.(latest reports from Mood Changes 115 patients)

On Oct, 26, 2014: 807 male patients aged 37 who take the same drugs are studied in Keflex vs Doxycycline Hyclate

Information of patient in study:

GenderAgeReason for the drug
Male37Strep throat

Drugs to compare:

Keflex cephalexinLex Pharms
Doxycycline Hyclate doxycycline hyclateWatson Labs

eHealthMe real world results:

For males aged 37 (±5):

Comparison with the specified adverse outcomes:

(outcome and its % of total reports)

Keflex (Lex Pharms)Doxycycline Hyclate (Watson Labs)
Mood Changes0.00%0.00%

Most common side effects:

(click on each outcome to view in-depth analysis, incl. how people recovered)
Keflex (Lex Pharms)Doxycycline Hyclate (Watson Labs)
AnxietyPyrexia (fever)
DepressionArthralgia (joint pain)
Weight DecreasedHeadache (pain in head)
Drug DependenceAnxiety
Headache (pain in head)Dizziness
Insomnia (sleeplessness)Fatigue (feeling of tiredness)
Drug Withdrawal Syndrome (interfere with normal social, occupational, or other functioning. are not due to another medical condition, drug use, or discontinuation)Drug Ineffective
Nausea (feeling of having an urge to vomit)Depression
Fatigue (feeling of tiredness)Nausea (feeling of having an urge to vomit)
DizzinessSuicidal Ideation

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

(click on each outcome to view in-depth analysis, incl. how people recovered)
Keflex (Lex Pharms)Doxycycline Hyclate (Watson Labs)
Intentional OverdoseAnxiety
Suicide AttemptDepression
DepressionSuicidal Ideation
AnxietyAffective Disorder (mental disorder)
Loss Of ConsciousnessAsthenia (weakness)
Phantom PainAlcohol Abuse (problems with alcohol)
Muscle Spasms (muscle contraction)Convulsion (muscles contract and relax rapidly and repeatedly, resulting in an uncontrolled shaking of the body)
Poor Peripheral CirculationAggression
Suicidal IdeationBipolar Disorder (mood disorder)
Asthenia (weakness)Disturbance In Attention

Drug effectiveness:

not at allsomewhatmoderatehighvery high
Doxycycline Hyclate5.88%31.37%35.29%21.57%5.88%

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.

Next: study your drugs OR ask a question from Patients Like You

Drug effectiveness in real world:

Alternative drugs:

Side effects in real world:

On eHealthMe, Keflex (cephalexin) is often used to treat infection. Doxycycline Hyclate (doxycycline hyclate) is often used to treat acne. 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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