We may not save that much. Available for Android and iOS devices. Do not freeze DUAC Gel. But even if they did, I'd be tempted to stretch those, too.Get health information and advice from the experts at Harvard Medical School.The sensation that your heart has skipped a beat or suddenly started to race is known as palpitations. Do not freeze. Since yours doesn't it will only take a moment of their time. is that drug companies establish expiration dates to encourage us to replace our older medications (even if they are still good). A rare exception to this may be tetracycline, but the report on this is controversial among researchers. Wear protective clothing and use sunscreen (SPF 30 or higher) when you are outdoors.Avoid using sunscreen containing PABA on the same skin treated with DUAC, or skin discoloration may occur.Benzoyl peroxide can bleach hair or fabrics. But many drugs can interact with each other. Tell each of your health care providers about all medicines you use, including prescription and over-the-counter medicines, Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.Copyright 1996-2018 Cerner Multum, Inc. Select one or more newsletters to continue. Throw away any unused medicine after the Apply the missed dose as soon as you remember. I cant even let my husband see me without make up. My main problem is the acne. Glucophage: Metformin belongs to the class of medications called oral hypoglycemics, which are medications that lower blood sugar. You may report side effects to FDA at 1-800-FDA-1088.It is not likely that other drugs you take orally or inject will have an effect on topically applied benzoyl peroxide and clindamycin. You should not breast-feed while using this medicine.Follow all directions on your prescription label. Does Metformin, have a short shelf life or do you think it will still be effective? Metformin treats type 2 diabetes by lowering blood sugar levels. If you're under 18 years of age, you would need to see your GP for acne treatment - you wouldn't be able to get it online. If you're happy and would like to carry on browsing click 'Accept', or find out more about our Essentially, that makes them If you experience any of the above serious side effects you should stop using Duac gel and speak to your doctor.The most common side effects listed above affect at least 1 in every 10 users of Duac gel, which is a fairly high rate of occurrence relative to others, but still not that high overall. The Harvard Medical School republished a well-worn article in August that recounted a 1985 study in which the U.S. Food and Drug Administration (FDA) looked to … Head to our dedicated Duac gel is only recommended for use by people older than 12, so it isn’t suitable for use treating children. Brief Answer: not effective and may be harmful Detailed Answer: Hi, thanks for using healthcare magic No, unfortunately it would not be safe to use this medication. Just be sure it wasn't stored - ever - in ahot or cold place. But there is some risk in taking a heart rhythm medication that, if ineffective, could lead to an unstable and dangerous heart problem. Throw away any unused medicine after the expiration date on the label has passed. So, the expiration date doesn't really indicate a point at which the medication is no longer effective or has become unsafe to use. Store DUAC Gel at room temperature up to 25°C (77°F). Data sources include IBM Watson Micromedex (updated 2 Sep 2020), Cerner Multum™ (updated 1 Sep 2020), … Some drugs can actually change chemical composition and become toxic but most just lose effectiveness.Your best bet is to call the pharmacy where it was filled. Duac has an expiration date of 60 days. Keep the tube tightly closed. If you’re allergic to any of the listed ingredients, you obviously shouldn’t attempt to get a prescription for it.If the area of skin you intend to treat is significantly damaged (broken or sunburned, most notably), do not apply Duac gel to it.