* The highest selling<unk>  in the United States of America is the nicotine patch, which releases nicotine in controlled doses to help with cessation of tobacco smoking. The first commercially available vapour patch to reduce smoking was approved in Europe in 2007. * Two opioid medications used to provide round-the-clock relief for severe pain are often prescribed in patch form, fentanyl CII (marketed as Duragesic) and buprenorphine CIII (marketed as BuTrans). * Hormonal patches * estrogen patches are sometimes prescribed to treat menopausal symptoms (as well as post-menopausal osteoporosis) and to transgender women as a type of hormone replacement therapy. * contraceptive patch (marketed as Ortho Evra or Evra) and * testosterone CIII patches for both men (Androderm) and women (Intrinsa). * Nitroglycerin patches are sometimes prescribed for the treatment of angina in lieu of sublingual pills. * Transdermal scopolamine is commonly used as a treatment for motion sickness. * The anti-hypertensive drug clonidine is available in<unk>  form * Emsam, a transdermal form of the MAOI selegiline, became the first transdermal delivery agent for an antidepressant approved for use in the U.S. in March 2006. * Daytrana, the first methylphenidate transdermal delivery system for the treatment of attention deficit hyperactivity disorder (ADHD), was approved by the FDA in April 2006. * Vitamin B12 may also be administered through a<unk> . Cyanocobalamin, a highly stable form of vitamin B12, is compatible with<unk> ing. * 5-Hydroxytryptophan (5-HTP) can also be administered through a<unk> , which was launched in the United Kingdom in early 2014. * Rivastigmine, an Alzheimer's treatment medication, was released in patch form in 2007, under the brand name Exelon * In December 2019, Robert S. Langer and his team developed and patented a technique whereby<unk> es could be used to label people with invisible ink in order to store medical information subcutaneously. This was presented as a boon to "developing nations" where lack of infrastructure means an absence of medical records. The technology uses a "quantum dot dye that is delivered along with a vaccine". *Caffeine patch, designed to deliver caffeine to the body through the skin.
Transdermal patch
Transdermal spray
Injectable filler
Transdermal analgesic patch
Aqueous cream
Subcutaneous implant
Intradermal injection
Subcutaneous injection