Peringatan Keamanan

Less than 3.5% of patients treated with this drug will experience minor adverse events such as upset stomach, dysuria, nausea, and rash.

Methenamine

DB06799

small molecule approved vet_approved

Deskripsi

Methenamine is a heterocyclic organic compound with a cage-like structure similar to adamantane. In salt form it is used for the treatment of urinary tract infection (Example: methenamine hippurate which is the hippuric acid salt of methenamine).

Struktur Molekul 2D

Berat 140.1863
Wujud solid

Peta Jejaring Molekuler
Legenda: ObatTargetGenEnzim(Panah → menunjukkan arah efek / relasi)TransporterCarrier

Profil Farmakokinetik

Waktu Paruh (Half-Life) Elimination half-life = 3-4 hours assuming normal renal function. (1)
Volume Distribusi -
Klirens (Clearance) 70-90% of a single oral dose of methenamine is excreted unchanged in the urine within 24 hours. (1)

Absorpsi

After oral administration, rapid absorption of methenamine occurs. (1)

Metabolisme

When in acidic urine (pH<6), methenamine is hydrolyzed to formaldehyde which acts as an antiseptic. (1)

Rute Eliminasi

Methenamine is primarily eliminated via the kidneys. (1)

Interaksi Makanan

2 Data
  • 1. Drink plenty of fluids.
  • 2. Take with food.

Interaksi Obat

143 Data
Chlorpropamide Methenamine may decrease the excretion rate of Chlorpropamide which could result in a higher serum level.
Mecamylamine Methenamine may increase the excretion rate of Mecamylamine which could result in a lower serum level and potentially a reduction in efficacy.
Picosulfuric acid The therapeutic efficacy of Picosulfuric acid can be decreased when used in combination with Methenamine.
Amphetamine The serum concentration of Amphetamine can be decreased when it is combined with Methenamine.
Phentermine The serum concentration of Phentermine can be decreased when it is combined with Methenamine.
Pseudoephedrine The serum concentration of Pseudoephedrine can be decreased when it is combined with Methenamine.
Benzphetamine The serum concentration of Benzphetamine can be decreased when it is combined with Methenamine.
Diethylpropion The serum concentration of Diethylpropion can be decreased when it is combined with Methenamine.
Lisdexamfetamine The serum concentration of Lisdexamfetamine can be decreased when it is combined with Methenamine.
Mephentermine The serum concentration of Mephentermine can be decreased when it is combined with Methenamine.
MMDA The serum concentration of MMDA can be decreased when it is combined with Methenamine.
Midomafetamine The serum concentration of Midomafetamine can be decreased when it is combined with Methenamine.
2,5-Dimethoxy-4-ethylamphetamine The serum concentration of 2,5-Dimethoxy-4-ethylamphetamine can be decreased when it is combined with Methenamine.
4-Bromo-2,5-dimethoxyamphetamine The serum concentration of 4-Bromo-2,5-dimethoxyamphetamine can be decreased when it is combined with Methenamine.
Tenamfetamine The serum concentration of Tenamfetamine can be decreased when it is combined with Methenamine.
Chlorphentermine The serum concentration of Chlorphentermine can be decreased when it is combined with Methenamine.
Methylenedioxyethamphetamine The serum concentration of Methylenedioxyethamphetamine can be decreased when it is combined with Methenamine.
Dextroamphetamine The serum concentration of Dextroamphetamine can be decreased when it is combined with Methenamine.
Metamfetamine The serum concentration of Metamfetamine can be decreased when it is combined with Methenamine.
Iofetamine I-123 The serum concentration of Iofetamine I-123 can be decreased when it is combined with Methenamine.
Ritobegron The serum concentration of Ritobegron can be decreased when it is combined with Methenamine.
Mephedrone The serum concentration of Mephedrone can be decreased when it is combined with Methenamine.
Methoxyphenamine The serum concentration of Methoxyphenamine can be decreased when it is combined with Methenamine.
Gepefrine The serum concentration of Gepefrine can be decreased when it is combined with Methenamine.
2,5-Dimethoxy-4-ethylthioamphetamine The serum concentration of 2,5-Dimethoxy-4-ethylthioamphetamine can be decreased when it is combined with Methenamine.
Phendimetrazine The serum concentration of Phendimetrazine can be decreased when it is combined with Methenamine.
Ethoxzolamide The serum concentration of the active metabolites of Methenamine can be reduced when Methenamine is used in combination with Ethoxzolamide resulting in a loss in efficacy.
Methazolamide The serum concentration of the active metabolites of Methenamine can be reduced when Methenamine is used in combination with Methazolamide resulting in a loss in efficacy.
Zonisamide The serum concentration of the active metabolites of Methenamine can be reduced when Methenamine is used in combination with Zonisamide resulting in a loss in efficacy.
Diclofenamide The serum concentration of the active metabolites of Methenamine can be reduced when Methenamine is used in combination with Diclofenamide resulting in a loss in efficacy.
Sulfisoxazole Methenamine can cause a decrease in the absorption of Sulfisoxazole resulting in a reduced serum concentration and potentially a decrease in efficacy.
Sulfadiazine Methenamine can cause a decrease in the absorption of Sulfadiazine resulting in a reduced serum concentration and potentially a decrease in efficacy.
Sulfamethoxazole Methenamine can cause a decrease in the absorption of Sulfamethoxazole resulting in a reduced serum concentration and potentially a decrease in efficacy.
Sulfamerazine Methenamine can cause a decrease in the absorption of Sulfamerazine resulting in a reduced serum concentration and potentially a decrease in efficacy.
Sulfameter Methenamine can cause a decrease in the absorption of Sulfameter resulting in a reduced serum concentration and potentially a decrease in efficacy.
Sulfamethoxypyridazine Methenamine can cause a decrease in the absorption of Sulfamethoxypyridazine resulting in a reduced serum concentration and potentially a decrease in efficacy.
Acetyl sulfisoxazole Methenamine can cause a decrease in the absorption of Acetyl sulfisoxazole resulting in a reduced serum concentration and potentially a decrease in efficacy.
Cimetidine The therapeutic efficacy of Methenamine can be decreased when used in combination with Cimetidine.
Nizatidine The therapeutic efficacy of Methenamine can be decreased when used in combination with Nizatidine.
Ranitidine The therapeutic efficacy of Methenamine can be decreased when used in combination with Ranitidine.
Famotidine The therapeutic efficacy of Methenamine can be decreased when used in combination with Famotidine.
Methantheline The therapeutic efficacy of Methenamine can be decreased when used in combination with Methantheline.
Aluminium The therapeutic efficacy of Methenamine can be decreased when used in combination with Aluminium.
Magnesium oxide The therapeutic efficacy of Methenamine can be decreased when used in combination with Magnesium oxide.
Aluminum hydroxide The therapeutic efficacy of Methenamine can be decreased when used in combination with Aluminum hydroxide.
Calcium carbonate The therapeutic efficacy of Methenamine can be decreased when used in combination with Calcium carbonate.
Metiamide The therapeutic efficacy of Methenamine can be decreased when used in combination with Metiamide.
Roxatidine acetate The therapeutic efficacy of Methenamine can be decreased when used in combination with Roxatidine acetate.
Magaldrate The therapeutic efficacy of Methenamine can be decreased when used in combination with Magaldrate.
Magnesium hydroxide The therapeutic efficacy of Methenamine can be decreased when used in combination with Magnesium hydroxide.
Magnesium trisilicate The therapeutic efficacy of Methenamine can be decreased when used in combination with Magnesium trisilicate.
Magnesium carbonate The therapeutic efficacy of Methenamine can be decreased when used in combination with Magnesium carbonate.
Lafutidine The therapeutic efficacy of Methenamine can be decreased when used in combination with Lafutidine.
Lavoltidine The therapeutic efficacy of Methenamine can be decreased when used in combination with Lavoltidine.
Bismuth subnitrate The therapeutic efficacy of Methenamine can be decreased when used in combination with Bismuth subnitrate.
Magnesium silicate The therapeutic efficacy of Methenamine can be decreased when used in combination with Magnesium silicate.
Aluminium acetoacetate The therapeutic efficacy of Methenamine can be decreased when used in combination with Aluminium acetoacetate.
Hydrotalcite The therapeutic efficacy of Methenamine can be decreased when used in combination with Hydrotalcite.
Magnesium peroxide The therapeutic efficacy of Methenamine can be decreased when used in combination with Magnesium peroxide.
Almasilate The therapeutic efficacy of Methenamine can be decreased when used in combination with Almasilate.
Aluminium glycinate The therapeutic efficacy of Methenamine can be decreased when used in combination with Aluminium glycinate.
Aloglutamol The therapeutic efficacy of Methenamine can be decreased when used in combination with Aloglutamol.
Niperotidine The therapeutic efficacy of Methenamine can be decreased when used in combination with Niperotidine.
Calcium silicate The therapeutic efficacy of Methenamine can be decreased when used in combination with Calcium silicate.
Aluminium phosphate The therapeutic efficacy of Methenamine can be decreased when used in combination with Aluminium phosphate.
Pantoprazole The therapeutic efficacy of Methenamine can be decreased when used in combination with Pantoprazole.
Omeprazole The therapeutic efficacy of Methenamine can be decreased when used in combination with Omeprazole.
Lansoprazole The therapeutic efficacy of Methenamine can be decreased when used in combination with Lansoprazole.
Esomeprazole The therapeutic efficacy of Methenamine can be decreased when used in combination with Esomeprazole.
Rabeprazole The therapeutic efficacy of Methenamine can be decreased when used in combination with Rabeprazole.
Dexlansoprazole The therapeutic efficacy of Methenamine can be decreased when used in combination with Dexlansoprazole.
Dexrabeprazole The therapeutic efficacy of Methenamine can be decreased when used in combination with Dexrabeprazole.
Sodium zirconium cyclosilicate The therapeutic efficacy of Methenamine can be decreased when used in combination with Sodium zirconium cyclosilicate.
Vonoprazan The therapeutic efficacy of Methenamine can be decreased when used in combination with Vonoprazan.
BCG vaccine The therapeutic efficacy of BCG vaccine can be decreased when used in combination with Methenamine.
Typhoid vaccine The therapeutic efficacy of Typhoid vaccine can be decreased when used in combination with Methenamine.
Dicoumarol The risk or severity of bleeding can be increased when Methenamine is combined with Dicoumarol.
Phenindione The risk or severity of bleeding can be increased when Methenamine is combined with Phenindione.
Warfarin The risk or severity of bleeding can be increased when Methenamine is combined with Warfarin.
Phenprocoumon The risk or severity of bleeding can be increased when Methenamine is combined with Phenprocoumon.
Acenocoumarol The risk or severity of bleeding can be increased when Methenamine is combined with Acenocoumarol.
4-hydroxycoumarin The risk or severity of bleeding can be increased when Methenamine is combined with 4-hydroxycoumarin.
Coumarin The risk or severity of bleeding can be increased when Methenamine is combined with Coumarin.
(R)-warfarin The risk or severity of bleeding can be increased when Methenamine is combined with (R)-warfarin.
Ethyl biscoumacetate The risk or severity of bleeding can be increased when Methenamine is combined with Ethyl biscoumacetate.
Fluindione The risk or severity of bleeding can be increased when Methenamine is combined with Fluindione.
Clorindione The risk or severity of bleeding can be increased when Methenamine is combined with Clorindione.
Diphenadione The risk or severity of bleeding can be increased when Methenamine is combined with Diphenadione.
Tioclomarol The risk or severity of bleeding can be increased when Methenamine is combined with Tioclomarol.
(S)-Warfarin The risk or severity of bleeding can be increased when Methenamine is combined with (S)-Warfarin.
Lactulose The therapeutic efficacy of Lactulose can be decreased when used in combination with Methenamine.
Methyclothiazide The therapeutic efficacy of Methenamine can be decreased when used in combination with Methyclothiazide.
Bendroflumethiazide The therapeutic efficacy of Methenamine can be decreased when used in combination with Bendroflumethiazide.
Benzthiazide The therapeutic efficacy of Methenamine can be decreased when used in combination with Benzthiazide.
Cyclothiazide The therapeutic efficacy of Methenamine can be decreased when used in combination with Cyclothiazide.
Hydroflumethiazide The therapeutic efficacy of Methenamine can be decreased when used in combination with Hydroflumethiazide.
Chlorothiazide The therapeutic efficacy of Methenamine can be decreased when used in combination with Chlorothiazide.
Hydrochlorothiazide The therapeutic efficacy of Methenamine can be decreased when used in combination with Hydrochlorothiazide.
Trichlormethiazide The therapeutic efficacy of Methenamine can be decreased when used in combination with Trichlormethiazide.
Polythiazide The therapeutic efficacy of Methenamine can be decreased when used in combination with Polythiazide.

Referensi & Sumber

Artikel (PubMed)
  • PMID: 24689705
    Lo TS, Hammer KD, Zegarra M, Cho WC: Methenamine: a forgotten drug for preventing recurrent urinary tract infection in a multidrug resistance era. Expert Rev Anti Infect Ther. 2014 May;12(5):549-54. doi: 10.1586/14787210.2014.904202. Epub 2014 Apr 1.

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International Brands
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