Reaction

Jarisch-Herxheimer Reaction reporting signals

Last recalculated 2026-09-14T18:28:35.993900+00:00 · 705 reports · 29 co-occurring drugs

As of the last recalculation, Jarisch-Herxheimer Reaction appears in 705 FAERS reports alongside 29 co-occurring drug terms. The strongest observed disproportionality signal is DOXYCYCLINE HYCLATE (PRR 244.0).

Important: FAERS is a spontaneous, voluntary, unverified reporting system. PRR and ROR identify reporting patterns for investigation; they are not incidence rates and do not establish causation.
DrugCo-reportsPRRROR
Doxycycline Hyclate312244.0245.1
Doxycycline309237.3238.3
Ceftriaxone Sodium168169.5170.2
Ceftriaxone140156.9157.6
Ampicillin2177.177.3
Ampicillin Sodium2177.177.3
Pyrazinamide2168.068.2
Rifampicin2060.060.2
Rifampin2348.148.1
Doxyclycline Hyclate2646.846.8
Isoniazid1935.635.6
Atovaquone933.433.5
Piperacillin Sodium And Tazobactam Sodium1929.429.4
Piperacillin And Tazobactam1228.228.2
Norepinephrine1028.028.0
Daspone927.627.6
Piperacillin Sodium,Tazobactam Sodium2427.627.6
Dapsone Gel, 5%927.627.6
Minocycline1025.725.7
Dapsone925.225.2
Meropenem2422.822.8
Norepinephrine Bitartrate1020.820.8
Ritonavir 100 Mg1020.020.0
Sirolimus920.020.0
Atazanavir918.718.7
Miconazole Nitrate517.017.0
Cefepime Hydrochloride916.716.7
Baricitinib515.415.4
Oseltamivir414.914.9

Related reactions

Data source: openFDA FAERS. See the OpenPV methodology and limitations.