ESPEN Congress The Hague 2017 · Antihistaminics Levocetirizine Drugs that can cause constipation ....
Transcript of ESPEN Congress The Hague 2017 · Antihistaminics Levocetirizine Drugs that can cause constipation ....
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ESPEN Congress The Hague 2017Specific needs of patients with chronic disease
Drug – Nutrient interactions
R. Witkamp (NL)
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Prof dr. Renger Witkamp
Nutrition and Pharmacology
@rengerwitkamp
Drug – Nutrient interactions
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The menu of the day for mrs. B.
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> 15 Different medicines
> 3 Guidelines
> 3 Physicians
X Nurses & caregivers
Dietician (?)
And I also seem to loose my appetite...
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• Chronic drug use is often associated with malnutrition and deficiencies
• Polypharmacy is an important risk factor and elderly are specifically at risk
• Causality is often not (yet ?) clear
• Awareness of apparent drug-food interactions can help to improve patient care
Key messages
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Food – Drug interactions
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Dresser et al. Clin Pharmacol Ther 2000
5 mg felodipine combined with 250 mL grapefruit sap or water
Time (hours)
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Abiraterone 1,000 mg dose level; Ryan et al. JCO 2010;28:1481-1488
fedfasted
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Drug-Food interactions
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Elderly: at risk for ADRs in general
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Péter et al., Eur J Nutr. 2017
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High incidence of polypharmacy among older persons
Foundation for Pharmaceutical Statistics (Netherlands),
2014
Age
Number of medications
7 or more
5 to 6
1 to 4
0
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Medication-related causes of
malnutrition
Oral health and functioning
Taste, smell
Appetite and satiation (+ or -)
GI physiology
General metabolism
Micronutrient absorption and metabolism
Microbiota
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Gingiva swelling due to Nifedipine (GEBU, Oct 2012)
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Drug-induced
smell and/or
taste disorders
Naik et al. Eur J Intern Med 21 (2010)
(just to give an
impression..)
Highly common
Mechanisms rather diverse
e.g.
Cytotoxicity NeurotoxicityTaste aversion
Effects on food rewardEffects on saliva
Bad taste
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• Common in elderly
• Often associated with / caused by drug use
• Long list of compounds potentially involved*, in particular;
tricyclic anti-depressants, SSRIs (less), anti-cholinergics, beta-
blockers,opiates, some antihistaminics etc. .
Xerostomia
* > 500; e.g. Crit Rev Oral Biol Med 2004: 15 (4): 221)
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Effects on appetite
• CNS compounds but also others e.g.:• TCAs, benzodiazepines, corticosteroids and valproate
stimulate appetite• SSRIs and topiramate inhibit appetite
• Be aware of indirect effects (nausea , other GI complaints)
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Example
Opiates Morphine, Codeine
CNS drugs
Antipsychotics Haloperidol, Risperidone
Tricyclic antidepressants Amitriptyline, Nortriptyline
Serotonin reuptake inhibitors Paroxetine
Anti-Parkinson drugs Amantadine
Anticholinergics Butylscopolamine
Diuretics Hydrochloorthiazide
NSAID’s Diclofenac, Ibuprofen
Calcium-antagonists Verapamil, Diltiazem
Antihistaminics Levocetirizine
Drugs that can cause constipation
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Effects on absorption or elimination of nutrients
• Mg with proton pump inhibitors (omeprazole a.o.)
• Vit B12 with metformin and proton pump inhibitors
• Vit B6 and B12 with certain anti-epileptic drugs
• Vit D with different medicines
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Polypharmacy and deficiencies of micronutrients in Dutch geriatric outpatients
(PanDeMic study)
Polypharmacy
Prevalence of malnutrition*
men women
no (<5 med) 22% 26%
yes (≥5 med) 31% 46%
• MNA screening • 65+ geriatric outpatients (N=1078)
André Janse & Wout van Orten-Luijten
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Medication and vitamin B12-status
Medication (yes, no)
Vitamin B12 blood level (nmol/l)
mean difference (exposed –
unexposed)p - value
Metformin - 51 0.002
PPI’s1 - 33 0.096
Beta blockers - 29 0.070
Statins + 22 0.246
ACE inhibitors - 28 0.083
1. Proton pump inhibitors2. Time period electronic patient records: August 1 – October 25, 2011 3. Time period electronic patient records: August 1 – November 15, 2011
512 geriatric patients
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Vit D associations with drug usePAnDeMic study
(* Polypharmacy and deficiencies of
micronutrients in Dutch geriatric
outpatients)
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Medication can play a role in malnutrition, in particular with chronic use of multiple drugs
Elderly are at risk. Drug-induced malnutrition is often unrecognized as side-effect
Effects and mechanims are diverse and causality is oftennot (yet?) clear
Prediction, alertness and timely intervention
needed; consider measuring nutrient levels
Summary & take home points
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