Massachusetts regulators have taken action against three more compounding pharmacies following unannounced inspections ordered in the wake of a deadly nationwide fungal meningitis outbreak linked to a different pharmacy in Framingham.

OncoMed Pharmaceutical Services suspended operations at its Waltham facility after an inspection found problems with storage of chemotherapy drugs. The company said the safety of its medications was never compromised and it was working to address the issue.

Woburn-based Pallimed Solutions was told to halt production of sildenafil citrate, which is sold as Viagra, for human use after inspectors found that it had been prepared with improper components. Company owner Jim Nahill said there were no patient complaints or safety issues.

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The Whittier Pharmacist, in Haverhill, was ordered to cease sterile compounding after unspecified violations were found. A message left with the company was not immediately returned.