A plain-language guide for Irvine

Start with the exact product.

The name of the ingredient is a useful start. The actual product, its intended use and who makes it are the next questions.

The word is broad

An amino acid is a building piece of protein. Join a small chain of these pieces and it is called a peptide.

The phrase “peptide treatment” names many different products; each needs its own approval check.

Some products have approval for named uses

As of September 2026, FDA approval covered Ozempic and Wegovy (semaglutide) as well as Mounjaro and Zepbound (tirzepatide).

The agency that reviews medicines is called the Food and Drug Administration, abbreviated FDA.

Wegovy and Zepbound include approvals for weight care. Ozempic and Mounjaro include approvals for diabetes care, which concerns blood sugar.

When asking about approved uses, give the exact product name and check whether the medicine is a shot or a pill.

A product’s approval covers that medicine and its specific uses. Ask the person treating you why that medicine fits the problem you want help with.

Compounding makes a medicine to order

A pharmacist or doctor can prepare a medicine to order. This is called compounding.

As of September 2026, making medicine to order can meet a medical need under federal rules, but that medicine has no FDA approval.

FDA does not check each compounded medicine’s quality, benefits or harms before it reaches patients.

Medicine made to order may help if a ready-made approved product is unavailable or cannot meet someone’s medical need.

Ask why a ready-made approved product would not meet your needs.

A prescription is only part of the answer

Federal rules as of September 2026 generally bar pharmacies and doctors from regularly making close copies of medicines already sold ready-made.

A prescriber is the person writing the prescription. An exception applies when that person decides a change in the medicine makes an important medical difference for you. A price cut by itself does not meet that exception’s requirements.

FDA’s September 2026 check showed semaglutide injections and tirzepatide were absent from the national shortage list.

A medicine missing from a local pharmacy’s shelves is not necessarily on FDA’s national shortage list.

Further reading and official tools →

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