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Ponstel (Mefenamic Acid)

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Ponstel is in a group of drugs called nonsteroidal anti-inflammatory drugs (NSAIDs). Ponstel is used for treating menstrual pain. It may be used for short-term (not more than 7 days) treatment of mild to moderate pain. Ponstel blocks the effect of certain substances in the body that are associated with pain and inflammation.

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Also known as:  Mefenamic Acid.


Ponstel is used for treating menstrual pain. It may be used for short term (not more than 7 days) treatment of mild to moderate pain.

Ponstel blocks certain substances in the body that are linked to inflammation. NSAIDs treat the symptoms of pain and inflammation.

Ponstel is also known as Mefenamic acid, Ponstan.

Generic name of Ponstel is Mefenamic Acid.

Brand name of Ponstel is Ponstel.


Take Ponstel orally.

Take Ponstel with or without food.

Take Ponstel with a full glass of water.

If you want to achieve most effective results do not stop taking Ponstel suddenly.


If you overdose Ponstel and you don't feel good you should visit your doctor or health care provider immediately.


Store at room temperature between 15 and 30 degrees C (59 and 86 degrees F) away from moisture and heat. Throw away any unused medicine after the expiration date. Keep out of the reach of children.

Side effects

The most common side effects associated with Ponstel are:

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Side effect occurrence does not only depend on medication you are taking, but also on your overall health and other factors.


Do not take Ponstel if you are allergic to Ponstel components or to aspirin.

Do not take Ponstel if you are pregnant, planning to become pregnant, or are breast-feeding.

Do not take Ponstel if you have had a severe allergic reaction (e.g., severe rash, hives, trouble breathing, growths in the nose, dizziness) to aspirin or a nonsteroidal anti-inflammatory drug (NSAID) (e.g., ibuprofen, celecoxib).

Do not take Ponstel if you have had recent or will be having bypass heart surgery.

Do not take Ponstel if you have kidney problems.

Do not take Ponstel if you have ulcers or inflammation of the stomach or bowel.

Do not use Ponstel with aspirin.

Be careful with Ponstel when it is used by children younger than 14 years old and by elderly people.

Avoid machine driving.

Avoid drinking alcohol.

It can be dangerous to stop Ponstel taking suddenly.

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Day-case laparoscopic subtotal hysterectomy may be considered as a potential treatment option in symptomatic women with major congenital uterine anomaly, in whom fertility potential is no longer an issue. Accurate pre-operative assessment of the upper urinary tract is considered essential.

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A simple and sensitive high-performance liquid chromatographic method for simultaneous determination of ketoprofen and mefenamic acid in tablets has been developed. HPLC with UV detection (220 nm) was performed on an analytical column packed with molecularly imprinted polymer (MIP) as the stationary phase. The MIPs are prepared by bulk polymerisation followed by crushing and sieving to the desired particle size. In this paper, we selected ketoprofen, methacrylic acid, and ethylene glycoldimethacrylate as template, functional monomer, and crosslinker in the presence of chloroform as the solvent. The retention times of mefenamic acid and ketoprofen were approximately 5 and 20 min, respectively. In order to compare the chromatographic data from the stationary phase, separation factors (alpha) were given. The values of alpha were 4.36 approximately 4.39 and showed that the MIPs were able to recognize structurally subtle differences from the template molecule. The limits of detection for ketoprofen and mefenamic acid were found to be 0.029 and 0.038 (g/L), while the limits of quantitation were 0.097 and 0.127 (g/L), respectively. Our results showed good accuracy, indicating that a ketoprofen-selective polymer was suitable for ketoprofen and mefenamic acid separations. Therefore, the MIPs are certainly applied to commercial tablet analysis.

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A restricted access media-molecularly imprinted polymer (RAM-MIP) for flufenamic acid has been developed for the simultaneous determination of non-steroidal anti-inflammatory drugs (NSAIDs) in river water samples. The RAM-MIP was prepared using 4-vinylpyridine and ethylene glycol dimethacrylate as a functional monomer and cross-linker, respectively, by a multi-step swelling and polymerization method followed by a surface modification technique. The RAM-MIP for flufenamic acid showed excellent molecular recognition abilities for flufenamic acid and mefenamic acid, and moderate molecular recognition abilities for indomethacin, etodolac and ketoprofen. The simultaneous determination of NSAIDs (mefenamic acid, indomethacin, etodolac and ketoprofen) in river water samples was carried out by LC-MS/MS using the RAM-MIP for flufenamic acid as a pretreatment column. The concentrations of mefenamic acid, indomethacin and etodolac in river water samples were determined to be 0.4, 0.7 and 0.3ng/L, respectively, while ketoprofen was below the limit of quantitation.

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To investigate the possible role of endothelial mediators on the increased vasoconstriction to 5-HT1 receptor stimulation by the host-modified arterioles feeding a Meth-A tumour implanted in the flank of female Balb/c mice.

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A randomized, single-blind, standard controlled trial compared efficacy of R. emodi against mefenamic acid on diagnosed subjects of primary dysmenorrhoea for three consecutive cycles. Experimental group (n=30) received capsules of R. emodi powder two times a day, two days before the expected date of menstruation, and continued first three days of menstruation, while control group (n=15) participants received mefenamic acid capsules three times a day on the same protocol. The primary outcome measures were reduced in severity and duration of pain, assessed by visual analogue scale (VAS) and verbal multidimensional scoring system (VMSS), and secondary outcome measures were overall improvement of dysmenorrhoea and improved in quality of life (QOL). Statistical analysis was done by repeated measures analysis of variance and Chi-square/Fisher Exact test.

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Phase III, Single centre, open, randomised, comparative, parallel group study.

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A rapid, specific and sensitive ultra-performance liquid chromatography tandem mass spectrometry method was developed for the determination of fenofibric acid in human plasma. The method involves simple, one-step liquid-liquid extraction procedure coupled with an Acquity UPLC(TM) BEH C(18) column (50 x 2.1 mm, i.d., 1.7 microm) with isocratic elution at a flow-rate of 0.2 mL/min and mefenamic acid was used as the internal standard. The Quattro Premier XE mass spectrometry was operated under the multiple reaction-monitoring mode using the electrospray ionization technique. Using 250 microL plasma, the methods were validated over the concentration rang 0.05-7.129 microg/mL, with a lower limit of quantification of 0.05 microg/mL. The intra- and inter-day precision and accuracy were within 9.3%. The recovery was 66.7% and 52.6% for fenofibric acid, and mefenamic acid, respectively. Total run time was 1.8 min only for each sample, which makes it possible to analyze more than 350 samples per day.

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Peribulbar anaesthesia is effective in reducing pain and blood pressure increase after PRP treatment. Oral diazepam, mefenamic acid, and acetaminophen (either alone or in combination with each other) are not effective in preventing PRP treatment-associated pain. Intramuscular injection of ketorolac tromethamine is also not effective in reducing PRP-associated pain.

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Prostanoid-independent anti-rheumatic effects of non-steroidal anti-inflammatory drugs (NSAIDs) are a matter of debate. The aim of the present study was to compare the effects of chemically different NSAIDs (diclofenac, indomethacin, ketoprofen, paracetamol, piroxicam and four fenamates: flufenamic, meclofenamic, mefenamic and tolfenamic acids) on human polymorphonuclear leukocyte (PMN) functions, i.e. calcium ionophore A23187-triggered degranulation, leukotriene B4 (LTB4) release, platelet-activating factor (PAF) production and migration towards LTB4. The four fenamates caused a dose-dependent inhibition of each of the PMN functions tested. Flufenamic, meclofenamic and tolfenamic acids were about equipotent to inhibit PMN degranulation (IC50S 21-32 microM) and LTB4 release (IC50s 21-25 microM) whereas mefenamic acid achieved similar effects at somewhat higher drug concentrations. Tolfenamic and meclofenamic acids were the most potent fenamates to inhibit PAF synthesis (IC50s 37 and 51 microM) as well as migration towards LTB4 (IC50s 61 and 92 microM). Out of the other NSAIDs, diclofenac (which is chemically related to fenamates) suppressed degranulation as well as LTB4 and PAF production. Indomethacin inhibited LTB4 and PAF synthesis whereas ketoprofen reduced degranulation. The inhibitory effects of the non-fenamate NSAIDs occurred only at drug concentrations far higher than those achieved clinically. Paracetamol and piroxicam (up to 300 microM) did not influence the PMN functions tested. We conclude that NSAIDs with a fenamate structure differ from other NSAIDs by inhibiting PMN functions induced either by receptor-mediated stimulus (LTB4) or calcium ionophore (A23187) at micromolar drug concentrations.

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Recently, it has been reported that inflammatory processes are associated with the pathophysiology of Alzheimer's disease and that treatment of non-steroidal anti-inflammatory drugs reduce the risk for Alzheimer's disease. In the present study, we examined nitric oxide radical quenching activity of non-steroidal anti-inflammatory drugs and steroidal drugs using our established direct in vitro nitric oxide radical detecting system by electron spin resonance spectrometry. The non-steroidal anti-inflammatory drugs, aspirin, mefenamic acid, indomethacin and ketoprofen directly and dose-dependently scavenged generated nitric oxide radicals. In experiments of nitric oxide radical donor, NOC18-induced neuronal damage, these four non-steroidal drugs significantly prevented the NOC18-induced reduction of cell viability and apoptotic nuclear changes in neuronal cells without affecting the induction of inducible nitric oxide synthase-like immunoreactivity. However, ibuprofen, naproxen or steroidal drugs, which had less or no scavenging effects in vitro, showed almost no protective effects against NOC18-induced cell toxicity. These results suggest that the protective effects of the former four non-steroidal anti-inflammatory drugs against apoptosis might be mainly due to their direct nitric oxide radical scavenging activities in neuronal cells. These direct NO. quenching activities represent novel effects of non-steroidal anti-inflammatory drugs. Our findings identified novel pharmacological mechanisms of these drugs to exert not only their anti-inflammatory, analgesic, antipyretic activities but also neuroprotective activities against neurodegeneration.

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Seizures during intoxications with pharmaceuticals are a well-known complication. However, only a few studies report on drugs commonly involved and calculate the seizure potential of these drugs.

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We examined whether a pre-emptive analgesic effect could be achieved with ropivacaine, which has less cardiovascular and central nervous system toxicity than bupivacaine, in adults undergoing tonsillectomy.

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ponstel reviews 2017-02-02

Prostaglandin synthesis inhibitors decrease menstrual blood loss by 30% to 50% in patients with essential menorrhagia. To obtain insight into their mechanism of action, we measured menstrual blood loss in menorrhagic women, who were Strattera Normal Dose receiving mefenamic acid (500 mg, three times daily) (n = 6) or placebo (n = 5) in a double-blind way. In addition we studied the morphology of early menstrual hemostasis. The subjects' uteri were extirpated in the first 24 hours of menstruation, and light and electron microscopy were used to perform morphologic and morphometric studies. In the group treated with mefenamic acid mean menstrual blood loss was decreased by 40%. In uteri of the women treated with mefenamic acid hemostatic plugs were further transformed, and fewer vessels without a plug were observed than in uteri of the group receiving placebo. These data suggest that mefenamic acid may act through an improvement of platelet aggregation and degranulation and through increased vasoconstriction.

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Apical efflux of 3 is associated with P-gp and MRP, but the efflux of 4 involves P-gp and/or MRP. The computational approach used in this study provided the basis for P-gp Atarax Dosing Information substrates of compounds 3 and 4 from their electron donor subunits spatial separation.

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The target compounds 3-(3-methyl-3,4-dihydro-2H-benzo[b][1, Anafranil Generic Equivalent 4]thiazin-3-yl)-2H-chromen-2-ones 2a-u were synthesized and characterized by spectral data. The antinociceptive properties of target compounds were determined by formalin-induced test and acetic acid-induced writhing test in mice. Among the tested compounds, compound 2u bearing 2-(4-(methylsulfonyl)benzoyl)- moiety on benzothiazine ring and 4-(methylsulfonyl)phenacyloxy- group on the 7 position of coumarin nucleus showed better profile of antinocecieption in both models. It was more effective than mefenamic acid during the late phase of formalin-induced test as well as in the acetic acid-induced writhing test.

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A simple, rapid and specific method for analysis of mefenamic acid (I) in serum by a sensitive high-performance Vigrx Medicine liquid chromatography is described. Only 70 microl of serum and a little sample work-up is required. A simple procedure of extraction by dichloromethane followed by evaporation to dryness under gentle stream of nitrogen and dissolving the dried residue in mobile phase was used. The mefenamic acid peak was separated from endogenous peaks on a C(8) column by a mobile phase of acetonitrile-water (50:50, v/v, pH 3). Mefenamic acid and internal standard (IS) (diclofenac) were eluted at 7.4 and 5.4 min, respectively. The limit of quantitation of mefenamic acid in serum was 25 ng/ml at 280 nm. The method was linear over the range of 25-2000 ng/ml with r(2) of 0.998. Mean recovery for mefenamic acid was 110%.

ponstel drug interactions 2015-06-02

Conventional resuscitation (CR) from hemorrhagic shock causes a persistent and progressive splanchnic vasoconstriction and hypoperfusion despite hemodynamic restoration with intravenous fluid therapy. Adjunctive direct peritoneal resuscitation (DPR) with a clinical peritoneal dialysis solution instilled into the peritoneal cavity has been shown to restore splanchnic tissue perfusion, down-regulate the gut-derived exaggerated systemic inflammatory response, promote early fluid mobilization, and improve overall outcome. This study was conducted to define the molecular mechanisms of DPR-induced gut hyperperfusion after hemorrhagic shock. Male rats were bled to 50% baseline mean arterial pressure and resuscitated with the shed blood plus two volumes of saline (CR). In vivo videomicroscopy and Doppler velocimetry were used to assess terminal ileal microvascular diameters and blood flow. Direct peritoneal resuscitation animals received CR and topical application of a clinical glucose-based peritoneal dialysis solution (Delflex). Inhibitors, glibenclamide (K(+)ATP channels), N-monomethyl-L-arginine (L-NMMA) (nitric oxide synthase), 8-cyclopentyl-1,3-diprophylxanthine (DPCPX) (A1 adenosine receptor), tetrabutylammonium (K(+)Ca2+ channels), and mefenamic acid (cyclooxygenase) were topically applied (individually or in combination) with DPR according to protocol; BQ-123 (endothelin A receptor antagonist) and BQ-788 (endothelin B receptor antagonist) were used topically with CR to define the mechanism of post-CR vasoconstriction and hypoperfusion. Conventional resuscitation caused a persistent progressive intestinal vasoconstriction and hypoperfusion that can be abolished with endothelin antagonists. In contrast, adjunctive DPR caused an instantaneous sustained vasodilation and hyperperfusion. Glibenclamide or L-NMMA partially attenuated DPR Zyrtec 300 Mg -induced vasodilation, whereas the addition of DPCPX to the two inhibitors eliminated the dilation. Cyclooxygenase and K(+)Ca2+channels were not active in DPR-mediated microvascular effects. In conclusion, DPR improves splanchnic tissue perfusion by endothelium-dependent mechanisms mediated by activations of glibenclamide-sensitive K(+) channels (KATP), adenosine A1 receptor subtype activation, and nitric oxide release. Direct peritoneal resuscitation preserves endothelial dilatory functions, thereby overriding any endothelium-derived constrictor response triggered by hemorrhagic shock and CR.

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Genetic and physiological studies have established a link between potassium channel dysfunction and a number of neurological and muscular disorders. Many 'channelopathies' are accounted for by a dominant-lethal suppression of potassium channel function. In the cardiac I(KS) channel complex comprising the alpha and beta subunits, KvLQT1 and IsK, respectively, several mutations lead to a dominant-negative loss of channel function. These defects are responsible for a human cardiovascular disease called long QT (LQT) syndrome. Here we show that binding of I(KS) channel activators, such as stilbenes and fenamates, to an extracellular domain flanking the human IsK transmembrane segment, restores normal I(KS) channel gating in otherwise inactive IsK C-terminal mutants, including the naturally occurring LQT5 mutant, D76N. Our data support a model in which allosteric interactions exist between the extracellular and intracellular boundaries of the IsK transmembrane segment as well as between domains of the alpha and beta subunits. Disruption of this allosteric interplay impedes slow activation gating, decreases current amplitude and restores channel Topamax Drug Abuse inactivation. Owing to allosteric interactions, stilbene and fenamate compounds can rescue the dominant-negative suppression of I(KS) produced by IsK mutations and thus, may have important therapeutic relevance for LQT syndrome.

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The aim of Ponstel Generic the study was to compare the effect of mefenamic acid and ginger on pain management in primary dysmenorrhea.

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Clinical use of mefenamic acid has generally declined in an era where other NSAID use has flourished. While having modes of action and general toxicities similar to other NSAIDs, mefenamic acid, as a member of the fenamates, nevertheless possesses some unique in vitro effects that have the potential to distinguish this agent from others. Use of this drug remains relevant for pain syndromes and some gynecological Starlix Drug disorders, albeit with considerable competition from other NSAIDs. New basic science has considerably improved the understanding of the biochemistry of mefenamic acid. As well as maintaining its use in traditional settings, there is a tremendous potential for expanding the application of mefenamic acid to niche roles.