Tramadol is used to relieve moderate to moderately severe pain. It may be used to treat pain caused by surgery and chronic conditions such as cancer or joint pain. Tramadol is in a class of medications called opiate (narcotic) analgesics. It works by decreasing the body's sense of pain. Tramadol can be habit-forming. Do not take a larger dose, take it more often, or take it for a longer period of time than prescribed by your doctor. Do not stop taking tramadol suddenly without talking to your doctor. If you suddenly stop taking tramadol, you may experience side effects, tramadol without prescription canada. Your doctor will probably decrease your dose gradually. If you suddenly stop taking tramadol you may experience withdrawal symptoms such as nervousness; panic; sweating; difficulty falling asleep or staying asleep; runny nose, sneezing, or cough; numbness, pain, burning, or tingling in your hands or feet; hair standing on end; or rarely, hallucinations (seeing things or hearing voices that do not exist). Special precautions Before taking tramadol,
Tell your doctor and pharmacist if you are allergic to tramadol or any other medicines.
Tell your doctor and pharmacist if you are taking vitamins, , nutritional supplements, tramadol without prescription canada, and herbal products you are taking.
tell your doctor if you have or have ever had seizures, head injury, infection in your brain or nervous system, increased intracranial pressure (increased pressure within the skull), diabetes, breathing problems or lung disease, tramadol without prescription canada, or kidney or liver disease. Also tell your doctor if you drink or have ever drunk large amounts of alcohol, use or have ever used street drugs, , or have overused prescription medications.
Tell your doctor if you are pregnant, plan to become pregnant, , or are breast-feeding. If you become pregnant while taking tramadol, call your doctor.
If you are having surgery, including dental surgery, tell the doctor or dentist that you are taking tramadol.
You should know that this drug may make you drowsy and may affect your coordination. Do not drive a car or operate machinery until you know how this drug affects you.
Remember that alcohol can add to the drowsiness caused by this drug, site about tramadol astonished. The manufacturer states that tramadol should not be taken with alcohol containing beverages.
You should know that tramadol may cause dizziness, lightheadedness, and fainting when you get up from a lying position, tramadol without prescription canada. To avoid this, , get out of bed slowly, resting your feet on the floor for a few minutes before standing up.
Side effects Tramadol may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away: tramadol without prescription canada,
dizziness
weakness
headache
nervousness or anxiety
agitation
shaking hands that you cannot control
increased muscle tightness
changes in mood
drowsiness
blurred vision
heartburn or indigestion
upset stomach
vomiting
diarrhea
constipation
itching
sweating
flushing
dry mouth
Some side effects can be serious, tramadol protocol. If you experience any of these symptoms, call your doctor immediately:
hives
rash
sores on the inside of your mouth, tramadol without prescription canada, nose, eyes, or throat
flu-like symptoms
itching
difficulty swallowing or breathing
swelling of the face, , throat, tramadol without prescription canada, tongue, lips, eyes, , hands, feet, ankles, or lower legs
fast heartbeat
hoarseness
difficulty swallowing or breathing
changes in urination
seeing things or hearing voices that do not exist (hallucinating)
seizures
Symptoms of overdose may include: ,
confusion
vomiting
decreased size of the pupil (the black circle in the center of the eye)
difficulty breathing
extreme drowsiness
unconciousness
coma
seizure
heart attack
Keep all appointments with your doctor. Do not let anyone else take your medicines.
Tramadol is a synthetic racemate: the (+) enantiomer is a prodrug of a weak opioid (CYP-2D6 converts tramadol to O -desmethyl tramadol - 'M1', the only active metabolite), , while the (-) enantiomer increases synaptic noradrenaline and serotonin levels by inhibiting their reuptake and promoting release (through autoreceptor activation). Major effects are probably via modulation of descending pain pathways. Tramadol was synthesised in 1962, and became available in Germany in 1977. Here, we look at its usage, pharmacokinetics, side-effects and merits. 1. Usage The drug is an excellent agent for moderate to severe pain, in adults and children. Recommended dosage in adults parenterally (IM or slowly IV over 2-3min, or PCA) is a 100mg bolus, then 50mg every 10-20min, with a maximum total dose 250mg; then 50-100mg 4-6 hourly to a maximum of 600mg/day, hydrocodone solubility. Clearly adjust PCA appropriately, tramadol without prescription canada, perhaps 20mg boluses with 5 min lockout. Per os, the adult dosage is 50 - 100 mg q 4-6hr as required, maximum 400mg/day. (For chronic pain, fewer side-effects may be seen starting gradually, tramadol without prescription canada, with lower doses). In children, tramadol without prescription canada, the dosage recommended is an initial 1-2mg/kg (Germany). Efficacy is excellent. Parenterally, analgesic efficacy similar to that of morphine (or ketorolac), based on good visual analogue score (VAS) -based randomised, , double blind, tramadol without prescription canada, controlled studies in adults (with dose titration to response) summarised in Table V of Scott & Perry, tramadol protocol. In IV PCA studies, the drug is likewise similar to morphine (Scott & Perry, Table VI). There is synergy with paracetamol, and non-steroidal anti-inflammatories. There seems to be no point in giving continuous infusions, (30% more drug required), tramadol without prescription canada. Even this silliness appears not to be associated with more adverse events. In children 1yr of age, tramadol without prescription canada, but not in USA (< 16 yr age) or UK (< 12 yr), tramadol protocol. Pharmacokinetics in children over 1 year of age appear similar to those in adults. 2. Pharmacokinetics Per os : peak effect after 1-4 hr, lasts 3-6 hr; 68+% bioavailable; extensive first-pass activation and removal (by CYP, tramadol without prescription canada, including 3A4 - induced by carbamazepine). Parenterally : tramadol without prescription canada, V D ~260L; Excretion of tramadol (and metabolites) is renal with a t 1/2 ß ~ 5.5 hr - for M1 the value is ~ 6.7+ hr. Plasma protein binding is 20%. Clearance is halved with liver or renal dysfunction. The drug is poorly dialysable. 3. Side effects, interactions and cautions The major good point of tramadol is its minimal respiratory depression in therapeutic doses but you should exercise the usual caution you would with opiates. Interactions with with monoamine-oxidase inhibitors, tramadol without prescription canada, alcohol (acute intoxication), hypnotics, tramadol without prescription canada, centrally acting analgesics, , opioids, and "psychotropics" (including selective serotonin reuptake inhibitors) preclude its use with such agents. It should also not be used in epileptic patients. Potential problems include CYP 2D6 deficiency, which may have clinical consequences (about 30% of analgesia is from M1 metabolite); it may be more effective in extensive metabolisers (nobody appears to have looked at respiratory depression in this subgroup)! Interactions occur with carbamazepine or cimetidine (3A4 effect), and quinidine, fluoxetine or amitriptyline (2D6), tramadol without prescription canada, but the clinical relevance of all of these is unclear, site about tramadol astonished. Interactions might possibly occur with coumarin anticoagulants (unlikely; this may be attributable to concomitant paracetamol administration)!! Watch for rare digoxin toxicity (??). Side Effects include nausea & vomiting (6% and ~2% respectively; more common with parenteral administration), dizziness, drowsiness, sweating, tramadol protocol. Nothing suggests a different tolerability profile in children, but this has not been extensively and specifically studied. Intra-operative awareness has been reported, but it would seem that the anaesthesia administered with the drug in these early reports was inadequate, hydrocodone solubility. Overdose is uncommon and abuse potential low . Features of overdose are what one would expect (sedation, nausea, vomiting) but importantly, , overdose may result in seizures, tramadol without prescription canada. Seizures do not appear to occur with usual doses (in the absence of drug interactions or underlying epilepsy). Tramadol crosses the placenta , tramadol without prescription canada, but appears safe in labour without neonatal respiratory depression. There is no evidence at present for teratogenicity, but the usual cautions apply. A tiny amount enters breast milk (0.1%). Tramadol appears contra-indicated in porphyria. 4. Benefits of Tramadol
It is an effective analgesic.
No significant respiratory depression occurs (in adults OR children) at recommended doses - IV /kg is similar to placebo; 1 or 2mg/kg caused substantially less respiratory depression in 88 children (2 - 10 yr) than did pethidine 1mg/kg - respiratory rate decreased by 7-12/min versus pethidine 31/min and placebo 2/min, with NO prolonged apnoea in the tramadol group. 90% of the pethidine group (versus 14 & 23% of the tramadol groups and 14% of placebo) needed manual ventilatory support. [Bosenberg AT & Ratcliffe S Anaesthesia 1998 Oct 53 960-4]
Tramadol appears to be antitussive.
There is no clinically significant effect on heart rate or blood pressure have been recorded (adults or children). There is no relevant effect on GIT function (apart from the relatively infrequent side effects of nausea and occasional vomiting).
Tramadol reduces post-operative shivering. (Interestingly, the sweating threshold is decreased by tramadol, in contrast to other opioids; tramadol without prescription canada; but like other opioids it lowers the vasoconstriction threshold and shivering threshold).
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