Generated automatically from the NAFDAC register, WHO alerts and community data as of today. This is not medical advice. Always follow your doctor or pharmacist.
From the official U.S. FDA label for benzylpenicillin sodium, the active ingredient registered with NAFDAC.
Therapy Penicillin G Potassium Injection, USP is indicated in the treatment of serious infections caused by susceptible strains of the designated microorganisms in the conditions listed below. Appropriate culture and susceptibility tests should be done before treatment in order to isolate and identify organisms causing infection and to determine their susceptibility to penicillin G. Therapy with Penicillin G Potassium Injection, USP may be initiated before results of such tests are known when there is reason to believe the infection may involve any of the organisms listed below; however, once these results become available, appropriate therapy should be continued. …
Body as a whole: The Jarisch-Herxheimer reaction is a systemic reaction, that may occur after the initiation of penicillin therapy in patients with syphilis or other spirochetal infections ( i.e. , Lyme disease and Relapsing fever). The reaction begins one to two hours after initiation of therapy and disappears within 12 to 24 hours. It is characterized by fever, chills, myalgias, headache, exacerbation of cutaneous lesions, tachycardia, hyperventilation, vasodilation with flushing and mild hypotension. The pathogenesis of the Herxheimer reaction may be due to the release from the spirochetes of heat-stable pyrogen. …
A history of a hypersensitivity (anaphylactic) reaction to any penicillin is a contraindication. Solutions containing dextrose may be contraindicated in patients with known allergy to corn or corn products.
Serious and occasionally fatal hypersensitivity (anaphylactic) reactions have been reported in patients on penicillin therapy. These reactions are more likely to occur in individuals with a history of penicillin hypersensitivity and/or a history of sensitivity to multiple allergens. There have been reports of individuals with a history of penicillin hypersensitivity who have experienced severe reactions when treated with cephalosporins. Before initiating therapy with penicillin G, careful inquiry should be made concerning previous hypersensitivity reactions to penicillins, cephalosporins, or other allergens. …
Pregnancy Reproduction studies performed in the mouse, rat and rabbit have revealed no evidence of impaired fertility or harm to the fetus due to penicillin G. Human experience with the penicillins during pregnancy has not shown any positive evidence of adverse effects on the fetus. There are, however, no adequate and well controlled studies in pregnant women showing conclusively that harmful effects of these drugs on the fetus can be excluded. …
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Nelb Penicillin Injection 1 Mega contains Benzylpenicillin sodium (1 MU), as injection, according to its NAFDAC registration record.
Yes. Nelb Penicillin Injection 1 Mega is listed on the NAFDAC register under registration number A4-3029, and its registration is active as of 27 October 2026.
No WHO falsified or substandard medical product alert currently matches Nelb Penicillin Injection 1 Mega in our automatically synced alert list.
Run a free authenticity scan with the NAFDAC number A4-3029, your pack's expiry date and batch number to get a Trust Score, compare the pack with the NAFDAC record (ingredient, strength, form, manufacturer), and buy only from licensed pharmacies.
Therapy Penicillin G Potassium Injection, USP is indicated in the treatment of serious infections caused by susceptible strains of the designated microorganisms in the conditions listed below. Appropriate culture and susceptibility tests should be done before treatment in order to isolate and identify organisms causing infection and to determine their susceptibility to penicillin G. Therapy with P (Summarised from the official U.S. FDA label for benzylpenicillin sodium. Always follow your doctor or pharmacist.)
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