GRAND RAPIDS, Mich. (Michigan News Source) – Pharmacies in West Michigan say a popular ADHD medication is in short supply.

Some people have said it is much more difficult to fill their prescriptions for Adderall. Pharmacists said the increased demand for the drug and supply chain problems are both factors in the prescription delays.

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Walgreens and CVS have both confirmed intermittent supplies of the generic brand of the drug.