Recently bolstered by its July 2024 absorption of González Calvillo, the Mexican team at Madrid-headquartered Pérez-Llorca is equipped to assist multinational and domestic clients with a range of regulatory mandates relating to pharmaceutical, food, drink and cosmetics products and medical devices. The group is well-versed in the management of authorisations issued by COFEPRIS, the review of research protocols and regulatory compliance review relating to the storage, distribution, labelling and importation of medicines and medical devices. Leadership of the team is split between counsels Enrique Muñoz Guízar and Carlos Fernando Castilla. Muñoz Guízar specialises in environmental law and regulatory matters relating to healthcare, natural resources, and consumer protection; Castilla handles dispute resolution, environmental and regulatory law. Senior associate Georgina Zavala handles environmental, life sciences and health-related regulatory matters. Since publication, Muñoz has been raised to the partnership - effective as of January 2026.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- 'They have sector-specific expertise and a highly collaborative and interdisciplinary approach. They always attend to the client's needs, addressing complex issues with customized solutions that balance technical rigor with a strategic business vision, using the strongest legal arguments. They are always readily available, providing prompt responses and agile solutions.'
- 'Enrique Muñoz Guiza has extensive knowledge in various areas of the sector. He is adept at interpreting complex situations, identifying risks and anticipating scenarios. He acts with honesty, transparency, and confidentiality, always preserving the trust in his work. He understands the needs and adaptations of each case and offers support beyond purely legal matters, tailored to the operation or process, providing timely follow-up.'
- 'There is good coordination among the different teams. They respond quickly to requests. The quality of the lawyers is excellent.'
Key clients
- Amazon Lab126
- Amazon México
- Axalta Coating Systems
- BA Sports Nutrition
- Genomma Lab
- Givaudan
- JTI
- Laboratorios Castells
- Lofarma SPA
- M3 Resources
- Mezcal Amarás
- Munbrunn
Work highlights
Advised Japan Tobacco International on the analysis of Mexico's tobacco regulations, including those related to advertising, and developed strategies for implementing marketing initiatives within the highly restrictive legal framework.
Represented Genomma Lab in various annulment lawsuits against resolutions issued by COFEPRIS concerning the imposition of sanctions and security measures related to the manufacturing and distribution of various medical products and dietary supplements.
Represented Qualtia Alimentos in an administrative proceeding before COFEPRIS challenging fines and security measures related to the handling of packaged foods.
Lawyers
Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Practice head
Enrique Muñoz Guizar; Carlos Fernando Castilla
Other key lawyers
Georgina Zavala