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Doctors' Answers to "Frequently Asked Questions" - Flexeril
Answer: Shouldn't be a problem with either the Tylenol 3 or the naprosyn. Flexeril is a Class B drug for pregnancy(pretty low risk) and is not mentioned as causing any spermatic changes in the PDR.
Answer: Flexeril is not a narcotic and should not come up as morphine. Nor do poppy seeds. The structure of Flexeril is most like the tricyclic antidepressants. Sorry, I can't be of more help.
Flexeril: Is Breast Emlargement a Side Effect? [posted 10/28/98]
Answer: Breast enlargement is listed as a potential complication, but, I have not seen this problem in patients. On the other hand, I rarely use it for long periods of time.
Flexeril: Is Numbness a Side Effect? [posted 10/6/98]
Answer: Not usually, but, stop it and see if the numbness goes away. It does affect pain thresholds and that may be what you are describing.
Flexeril [posted 8/11/98]
Answer: Mood changes would be common, priapism (continual erections) would be much less frequent. I would stop the drug - there are other alternatives to back spasms.
Flexeril [posted 7/23/98]
Answer: Flexeril is a muscle relaxant used mainly in patients with back spasm, but occasionally in spasm following trauma.
Flexeril for Fibromyalgia
Answer: Starts at 10 mg three times a day and can increase if one can tolerate the side effects to 20 mg t.i.d.
Answer: 10 mg, three times a day is the average starting dosage. I have patients occasionally on 20 mg t.i.d., but I doubt that your regimen is any more toxic than these. There is a risk of some toxicity with a higher dosage, but if you don't take it the rest of the day it would seem to be less. So how is he/she going to know if you do take 4 at bedtime versus 3 a day? If it were me, I'd stay on your current regimen.
Answer: Flexeril (cyclobenzaprine) is used in muscle spasms and treatment of similar disorders. It has strong atropine like effects and the negatives are usually centered around the atropine-like side effects. These include increasing glaucoma pressures and urinary retention. It should be used with extreme caution with alcohol and MAO inhibitors. It should not be used in hyperthyroid patients or in patients with congestive heart failure. It normally causes drowsiness, dry mouth, and dizziness(atropine side effects). Fatigue, nausea, constipation, dyspepsia, blurred vision, headache and confusion are also reported. There is a long list of occasional problems(1 in 100), but these are the common ones.
Answer: Flexeril (cyclobenzaprine) is commonly used to treat muscle spasms, usually in the back. Common side effects include trouble urinating, exacerbation of glaucoma, sleepiness, dry mouth, and vertigo. It should not be used with alcohol since it increases the effects of both.