Dear Pharmacist, I take eight different medications and six
supplements each day. I worry constantly that they will interact.
Please tell your readers what some of the most common interactions
are? -- K.S., Decatur, Ill.
Clip this article, or forward it to someone you care for, because
it just might save a life. I'm going to give you a "safety
checklist" of common drug-herb interactions, and there is a huge
section devoted to this in my book, "Drug Muggers.
Alcohol: The world's most famous liquid muscle relaxant, alcohol
slows the heart rate down. If you combine it with sleeping pills or
narcotic pain-relievers, it can stop the heart! It's also dangerous
to combine it with beta blockers (blood-pressure meds).
Grapefruit: a delicious fruit that when juiced, provides powerful
anti-cancer flavonoids and antioxidants. Like a few other fruits, it
can block a biochemical pathway in the liver that causes the levels
of medications to rise (rather than getting broken down and cleared
out of the body). Some drugs that interact with grapefruit include
oxycodone (Percocet), estrogen-containing hormones, most statin
cholesterol drugs, sildenafil (Viagra), diazepam and some
antihistamines. The interaction may occur even if you wait several
hours after your medication.
Ginkgo biloba: famed for it's ability to sharpen memory by
increasing blood flow to the brain. If you are taking a blood
thinner, like warfarin, aspirin or Plavix, then you may experience
enhanced blood-thinning effects which may lead to easy bruising and
internal bleeding.
Pomegranate or grapefruit juice: Chock full of antioxidants and
heart-healthy nutrients, but it might spike the level of sex pills
(Cialis, Levitra or Viagra) causing headache, indigestion, flushing,
heart palpitations or visual disturbances.
Stinging nettle: It helps men with prostate problems and women
with overactive bladder. Thing is, it has this lovely benefit of
slightly lowering blood sugar. If you take stinging nettle while
also taking diabetic medication, your blood sugar may drop too low
so monitor carefully or avoid the herb.
Iron or zinc supplements: Wonderful to help improve immunity and
rev up thyroid production, but these can block the actions of many
popular antibiotics including Cipro and Levaquin.
St. John's wort: Fantastic for boosting mood and reducing pain.
It can increase levels of other drugs, causing them to spike so high
that you get dangerous side effects. This doesn't mix well with
digoxin, omeprazole (Prilosec), MAO anti-depressants, oral
contraceptives, alprazolam (Xanax), and drugs used for HIV/AIDS.
Ginseng, ma huang or bitter orange, caffeine: Found in many diet
pills, these stimulate the body so avoid if you take breathing
medications such as inhalers (bronchodialators) or theophylline.
Arginine: Very popular natural amino acid that helps erectile
dysfunction and improves blood flow to the heart. It's wonderful
that arginine also reduces blood pressure, but if you take this with
nitroglycerin or isosorbide drugs, it can result in dangerously low
blood pressure.
info@dearpharmacist.com