Sunday 23 November 2014

Supplement – Drug Interactions (Part 3):

Herb – Drug Interactions:




More presentations from Naina Mohamed Pakkir Maideen

Ø The herbs like Alfalfa, Aloe vera, Cinnamon, Ephedra, Evening primrose, Garlic, Gingko, Ginseng, Green Tea, Kava, Licorice and St.John’s Wort can interact with various medicines.
Ø The effectiveness of Warfarin, Oral contraceptives and Immunosuppressants might be decreased by the co administration of Alfalfa.
Ø Aloe gel can increase the risk of hypoglycemia when used along with antidiabetic drugs.
Ø Cinnamon can increase the risk of hepatotoxicity while administering along with drugs like Acetaminophen, Amiodarone, Carbamazepine, Isoniazid, Methotrexate, Methyldopa, Fluconazole, Itraconazole, Erythromycin, Phenytoin, Lovastatin, Pravastatin, Simvastatin, and many others. Cinnamon can also increase the risk of hypoglycemia when it is administered with antidiabetic drugs.
Ø Ephedra can increase the risk of cardiac side effects of QT prolonging drugs. The heart rate and blood pressure might be elevated by the concomitant use of Ephedra and Methylxanthines, Stimulant drugs, Ergot alkaloids or MAO inhibitors.
Ø The risk of bleeding is increased by taking Evening Primrose oil along with Anticoagulant / Antiplatelet drugs. Taking evening primrose oil with phenothiazines might increase the risk of having a seizure in some people.
Ø Garlic may decrease the effectiveness of Isoniazid (INH), Antivirals, Oral Contraceptives and CYP3A4 Substrates.
Ø Ginger may increase the chances of bruising and bleeding when it is concomitantly used with Anticoagulant or Antiplatelet drugs. Ginger might decrease the blood sugar and hence it may increase the risk of hypoglycemia by interacting with antidiabetics. The risk of hypotension may be elevated by the combination of Ginger and CCBs.
Ø Gingko might change the effectiveness of Antidiabetics. The risk of bleeding might be increased by the concomitant use of Gingko and Anticoagulant or Antiplatelet drugs.
Ø The risk of hypoglycemia might be increased by the combined use of Ginseng and antidiabetics. Ginseng may increase the risk of bleeding when it is co administered with Anticoagulant / Antiplatelet drugs.
Ø Green Tea might increase the chances of bruising and bleeding when it is used along with Anticoagulant or Antiplatelet drugs. The side effects of caffeine might increased by the concomitant use of Green Tea and Oral Contraceptives or Quinolone antibiotics.
Ø Kava might decrease metabolism of substrates of CYP1A2, CYP2C19, CYP2C9 and CYP3A4.
Ø Licorice might increase the metabolism of warfarin and decrease its effectiveness leading to increased risk of clotting. The risk of hypokalemia might be increased by the combination of Licorice and Digoxin, Furosemide, Thiazides or Ethacrynic acid.
Ø Senna may increase the risk of hypokalemia when it is used along with Digoxin or Diuretics.
Ø St. John's wort might decrease the effectiveness of substrates of CYP2C19, CYP3A4 and P-Glycoprotein.
Ø Yohimbe might interact with Clonidine, Guanabenz and Antihypertensives and reduce their effectiveness.
Ø Consumers should consult with the doctor, pharmacist, or dietitian to know about the safety of a supplement or herb.
Ø Dietary supplements are not drugs and are not intended to treat, diagnose, mitigate, prevent, or cure diseases.

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Drug Interactions of Thiazide Diuretics:

https://www.researchgate.net/publication/342864519_Pharmacodynamic_interactions_of_thiazide_diuretics http://www.ijmdc.com/?mno=51031...