Heatwaves threaten drug potency, NAFDAC warns

Nigeria's National Agency for Food and Drug Administration and Control (NAFDAC) has issued a stark warning regarding the impact of escalating heatwaves on the potency of essential medications. The agency highlights that the current climate crisis poses a severe challenge to maintaining drug efficacy throughout the entire supply chain, potentially leading to widespread treatment failures.

NAFDAC Director-General, Prof. Mojisola Adeyeye, explained that heat stress acts as a silent threat, degrading vital medicines. Common antibiotics, including amoxicillin capsules and suspension formulas, are particularly sensitive to temperature fluctuations and can degrade rapidly even under standard laboratory conditions if climate controls are not rigorously maintained. The situation is even more critical for life-saving cold-chain items like oxytocin, a hormone crucial during childbirth.

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The primary mandate of the regulatory body remains to safeguard public health by monitoring the distribution, use, importation, and exportation of medications, making the protection of active pharmaceutical ingredients from environmental degradation a front-burner issue for the agency.

When temperatures exceed manufacturers' strict parameters due to severe heat, the active pharmaceutical ingredients in these medications can become completely deactivated. This poses a grave risk, as healthcare professionals might unknowingly administer ineffective treatments, endangering vulnerable patients. The agency stressed that storage requirements are binding commitments that must be upheld from the point of production down to the final end-user.

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The threat becomes even more catastrophic for life-saving cold-chain items like oxytocin, a vital hormone routinely administered to pregnant women during delivery.

To combat this unauthorized degradation of chemical formulations, NAFDAC has deployed its seven specialized laboratories nationwide. These facilities are conducting aggressive, routine post-market surveillance on the local supply chain. The process involves randomly collecting drug samples from various commercial levels for analysis to verify their chemical specifications against those set by the original manufacturers.

NAFDAC has committed to taking decisive action against any anomalies, including parallel importations, cloned variations, or adulterations. The agency is actively pursuing litigation, impounding compromised assets from open drug markets, and imposing substantial financial sanctions on distributors and companies found to be in violation of storage and quality standards. This intensified regulatory oversight aims to safeguard public health by ensuring the integrity and effectiveness of medications available in Nigeria.

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This regulatory dragnet involves pulling drug samples randomly from various commercial tiers to analyze whether they still retain the chemical specifications outlined by their original manufacturers.