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Review: Flexeril and Synthroid





Summary: drug interactions are reported among people who take Flexeril and Synthroid together.

This review analyzes the effectiveness and drug interactions between Flexeril and Synthroid. It is created by eHealthMe based on reports of 2,901 people who take the same drugs from FDA and social media, and is updated regularly.

You are not alone: join a mobile support group for people who take Flexeril and Synthroid >>>

What are the drugs

Flexeril has active ingredients of cyclobenzaprine hydrochloride. It is often used in muscle spasms. (latest outcomes from Flexeril 16,445 users)

Synthroid has active ingredients of levothyroxine sodium. It is often used in hypothyroidism. (latest outcomes from Synthroid 93,746 users)

On Nov, 25, 2014: 2,900 people who take Flexeril, Synthroid are studied

Flexeril, Synthroid outcomes

Drug combinations in study:
- Flexeril (cyclobenzaprine hydrochloride)
- Synthroid (levothyroxine sodium)

Drug effectiveness over time :

< 1 month1 - 6 months6 - 12 months1 - 2 years2 - 5 years5 - 10 years10+ yearsnot specified
Flexeril is effective27.27%
(6 of 22 people)
16.67%
(3 of 18 people)
30.00%
(3 of 10 people)
25.00%
(5 of 20 people)
22.58%
(7 of 31 people)
19.05%
(4 of 21 people)
31.25%
(5 of 16 people)
100.00%
(1 of 1 people)
Synthroid is effective0.00%
(0 of 2 people)
37.50%
(3 of 8 people)
25.00%
(2 of 8 people)
60.00%
(6 of 10 people)
61.90%
(13 of 21 people)
64.86%
(24 of 37 people)
69.23%
(36 of 52 people)
n/a

Most common drug interactions over time * :

< 1 month1 - 6 months6 - 12 months1 - 2 years2 - 5 years5 - 10 years10+ yearsnot specified
DizzinessPainNeutropeniaAnxietyDepressionDepressionDeep Vein ThrombosisPain
VomitingEmotional DistressFebrile NeutropeniaPainAnxietyAnxietyPulmonary EmbolismNausea
AnxietyInjuryPneumoniaNauseaSuicide AttemptCerebrovascular AccidentAnxietyFall
HeadacheVision BlurredMulti-organ FailureDepressionMemory ImpairmentFatigueSwellingArthralgia
Febrile NeutropeniaRetinal OedemaSeptic ShockPulmonary EmbolismIntentional OverdoseHeadachePost Thrombotic SyndromeBack Pain
NeutropeniaVomitingFatigueSuicide AttemptLoss Of ConsciousnessSuicidal IdeationPainDyspnoea
DiarrhoeaAnxietyHeadacheInjuryNeck PainThyroid DisorderMobility DecreasedFatigue
InjuryAbdominal PainHypothyroidismIntentional OverdoseRoad Traffic AccidentDizzinessImpaired Driving AbilityOedema Peripheral
HypokalaemiaHypothyroidismHypokalaemiaCholecystitis ChronicBipolar DisorderLoss Of ConsciousnessSkin DiscolourationAnxiety
OedemaLeukopeniaDiarrhoeaMental DisorderAstheniaNumbness And TinglingConversion DisorderDepression

Drug effectiveness by gender :

FemaleMale
Flexeril is effective24.62%
(32 of 130 people)
22.22%
(2 of 9 people)
Synthroid is effective60.47%
(78 of 129 people)
75.00%
(6 of 8 people)

Most common drug interactions by gender * :

FemaleMale
PainNausea
NauseaPain
FatigueVomiting
FallDizziness
Back PainPyrexia
ArthralgiaFall
DyspnoeaDiarrhoea
AnxietyAsthenia
Oedema PeripheralHeadache
DepressionOedema Peripheral

Drug effectiveness by age :

0-12-910-1920-2930-3940-4950-5960+
Flexeril is effectiven/an/an/a10.00%
(1 of 10 people)
6.78%
(4 of 59 people)
9.57%
(9 of 94 people)
10.89%
(11 of 101 people)
23.68%
(9 of 38 people)
Synthroid is effectiven/an/an/a70.00%
(7 of 10 people)
25.00%
(12 of 48 people)
26.88%
(25 of 93 people)
20.59%
(21 of 102 people)
48.72%
(19 of 39 people)

Most common drug interactions by age * :

0-12-910-1920-2930-3940-4950-5960+
n/an/aGastritisPulmonary EmbolismPainNauseaPainOedema Peripheral
InjuryDeep Vein ThrombosisAnxietyPainArthralgiaFall
Cholecystitis ChronicPainPulmonary EmbolismBack PainNauseaPain
Abdominal Pain UpperInjuryDepressionDizzinessHypoaesthesiaAsthenia
VomitingDizzinessWeight IncreasedFatigueDepressionDyspnoea
Abdominal PainAnxietyNauseaDyspnoeaFatigueBack Pain
Lip SwellingHeadacheInjuryVomitingChest PainArthralgia
Rheumatoid ArthritisVomitingDeep Vein ThrombosisChest PainAnxietyPneumonia
Loss Of ConsciousnessDiabetes MellitusType 2 Diabetes MellitusOedema PeripheralFallFatigue
NauseaExtrapyramidal DisorderDizzinessDepressionDyspnoeaNausea

* Some reports may have incomplete information.

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.

Do you take Flexeril and Synthroid?

You are not alone! Join a related mobile support group:
- support group for people who take Flexeril and Synthroid
- support group for people who take Flexeril
- support group for people who take Synthroid

Can you answer these questions (Ask a question):

More questions for: Flexeril, Synthroid

You may be interested at these reviews (Write a review):

  • Cardio version caused fingernail abnormalities
    Right hip fracture. When prepping for surgery AFIB was found. Surgery was cancelled and they attempted to get AFIB under control. Finally, cardioversion was performed. When my nails started to grow out they all had two horizontal lines that cause the nail to break when it grows out to that point.
  • Synthroid and breast enlargement
    I have went from a B-C cup size to a D cup in the past 8-9 months.
  • Double vision on levothyroxine
    Diagnosed with under active thyroid in January 2011. Noticed onset of double vision in January 2014. Blurred vision and double vision worsened to such an extent that my glasses prescription has changed three times in less than 7 months. All the symptons I experience are a direct result of taking Levothyrixine and have increased as my dose has been increased.
  • I switched to armour ,it's not synthetic.
    I went off after 7 years on it when I discovered a link to a higher rate of lung cancer. I switched to Armour and it handled the hypothyroidism way better.
    http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3765368/
  • High blood pressure - find the right medication (2 responses)
    I was going through the menopause with all the usual drama when I started feeling awful. Doc said that my blood pressure was through the roof and prescribed Lisinopril. This gave me technicolour dreams and a runny nose, so he switched me to Losartan. This made me soooo tired that I didn't want to get up. So then I tried Amlopidine. Fantastic! I haven't felt this well since I was on my teens. My message is ... don't put up with side effects. Change your drug until you find the one that works for you.

More reviews for: Flexeril, Synthroid

Comments from related studies:

  • From this study (4 weeks ago):

  • peanuts on Mar, 31, 2010:

    my friend is suffering from rhumatory arthertis.and is currenty taking cocaine. oxy cotin,prestine, wellbutrim, predisone 10mg what side effects should she expect ?????

    Reply

    mtntexas on May, 11, 2013:

    Just ask John Belushi

    Reply

    2cents on Mar, 6, 2013:

    I'll second that!

    Reply

Post a new comment    OR    Read more comments

Complete drug side effects:

On eHealthMe, Flexeril (cyclobenzaprine hydrochloride) is often used to treat muscle spasms. Synthroid (levothyroxine sodium) is often used to treat hypothyroidism. 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:

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.

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You may report adverse side effects to the FDA at http://www.fda.gov/medwatch/ or 1-800-FDA-1088 (1-800-332-1088).

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