- Not recommended for treatment of COVID-19
- Increased risk of worsening bacterial infection
- Might slightly increase baricitinib exposure

NSAIDs

Opioid analgesics are opioids that have analgesic properties, meaning they reduce pain.

Opioid Analgesics

An analgesic is a substance or drug that decreases pain. For example, opioid drugs (such as heroin, morphine, methadone, and codeine) are notable for having analgesic properties that work to reduce or relieve pain.

Analgesic

Paracetamol is used to treat fever in COVID-19. Because one of its metabolites is hepatotoxic, use caution when combining paracetamol with other hepatotoxic drugs, such as lopinavir. When combining paracetamol with favipiravir, keep the paracetamol dosage under 3 grams because of the risk of increased paracetamol exposure.

Paracetamol for fever and interaction precautions in COVID-19

- Paracetamol
- NSAIDs
- Opioid Analgesics 

Rutgers University

AI Agents

- antipyretics and analgesics
- drugs in cardiovascular diseases
- drugs in infectious diseases
- anti cancer drugs
- drugs in transplantation and autoimmune diseases
- drugs in neuropsychiatric diseases
- drugs in respiratory diseases

Assessment and Management of the Risk of Drug-Drug Interactions with Other Widely Used Drugs

Spielman, R. M., Jenkins, W. J., & Lovett, M. D. (2020, April 22). Psychology (2nd ed.). OpenStax. https://openstax.org/books/psychology-2e/pages/1-introduction

OpenStax Psychology (2nd ed.) Textbook

- Anticancer treatment must be suspended for patients with COVID-19 in ICU
- Highly cytotoxic chemotherapy should be avoided in COVID-19 infection
- Possible additive cardiotoxicity between protein kinase inhibitors and hydroxychloroquine, azithromycin or lopinavir
- Many anticancer drugs can inhibit or induce CYPs which can change the bioavailability or elimination of lopinavir/r, hydroxychloroquine, favipiravir, or remdesivir

Anti-Cancer drugs: cytotoxic, targeted therapy

- When co-administered with hydroxychloroquine, calcineurin inhibitors and m-TOR inhibitors can cause QT prolongation
- Increased exposure of hydroxychloroquine with ciclosporin
- Must reduce dose of lopinavir/r with immunosuppressants due to its strong inhibition of CYP3A, OATP1B1, and OATP1B3 to prevent nephrotoxicity and neurotoxicity  
- Therapeutic drug monitoring needed in combination with lopinavir/r
- Baricitinib may increase immunosuppression in combination with immunosuppressants 
- Combination of anakinra and methotrexate or TNF-alpha not recommended 

Drugs in organ transplantation and autoimmune disease

Antidepressants:
- Do not combine citalopram or escitalopram with hydroxychloroquine due to risk of torsades de pointes by increasing the QT interval

Anxiolytics:
- Use of hydroxyzine with hydroxychloroquine is contraindicated due to the torsadogenic risk

Antipsychotics:
- Increased torsadogenic potential of most neuroleptics with hydroxychloroquine but combination not contraindicated

Addiction medication:
- Methadone not recommended with hydroxychloroquine due to dose dependent cardiotoxicity like torsades de pointes

Anti migraines:
- Use of azithromycin is contraindicated with ergot derivatives, ergotamine and dihydroergotamine

Antiepileptics: 
- Risk of interactions from old anticonvulsants including but not limited to phenytoin and phenobarbital due to enzyme inducing effects

Drugs in neuropsychiatric diseases

Anti-asthmatics:
- Ritonavir was show to increase the plasma exposure of fluticasone by more than 100 times and thus this combination should be avoided
- Strong CYP3A4 inhibitors like lopinavir/r can increase exposure of budesonide and salmeterol
- Increased salmeterol exposure can lead to QT prolongation and palpitations
- Theophylline exposure may be altered by lopinavir/r so both must be used with caution

Drugs in respiratory diseases

- Anticoagulants and antiplatelet drugs
- Lipid lowering drugs
- Anti-hypertensives
- Drugs in heart failure
- Drugs in angina pectoris
- Anti-arrhythmic drugs
- Oral anti-diabetics

Drugs in Cardiovascular Disease

- Antiretrovirals
- Viral Hepatitis B and C Drugs
- Anti-tuberculosis Drugs

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