MediHelp
Drug interactions A–Z
Known drug-drug interactions with severity, mechanism and clinical management.
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
- Lamotrigine + Methylphenidate moderate
- Lamotrigine + Olanzapine moderate
- lamotrigine + valproate major
- Lamotrigine + Valproic acid major
- Levocetirizine + Promethazine moderate
- levodopa + phenelzine (nonselective maoi) major
- levofloxacin + loperamide moderate
- levofloxacin + ondansetron major
- levofloxacin + warfarin moderate
- Levothyroxine + Methylphenidate moderate
- levothyroxine + multivitamin with minerals moderate
- levothyroxine + pantoprazole moderate
- Linaclotide + Lubiprostone moderate
- Linaclotide + Mosapride moderate
- linezolid + meperidine major
- linezolid + sertraline major
- linezolid + tyramine-containing drugs (e.g., selegiline) major
- lisinopril + lithium major
- lisinopril + sitagliptin moderate
- lisinopril + spironolactone major
- Losartan + Nitroglycerin moderate
- lovastatin + ritonavir contraindicated
- Lubiprostone + Mosapride moderate
- lurasidone + rifampin contraindicated
- lurasidone + ritonavir contraindicated
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.