There are many types of medications for erectile dysfunction in the market today, and more being created and discovered all the time, our guess is the ED Drugs market by ratio won't be far off the alcohol and gambling markets.

Below are some of the more well known medications available for erectile dysfunction, have a read and digest the information and find the best cure for you now!

1. Oral medications
Oral medications require a certain amount of time before it takes effect, this varies by the medium of the medication. Altho it is disputed many believe that Jelly's are absorbed as quick as 15 Minutes, Softcaps in around 20 minutes and tablets in upto 1 hour. This does make sense given the oral cavity (mouth) exposure, but it is not confirmed at thos point by the manufacturers. A person taking oral medication for erectile dysfunction should take it at least an hour before sexual activity, just to ensure you are in a position to play the game.

Below are drugs known as PhosphoDiEsterase 5 (PDE5) inhibitors. These drugs work mainly by blocking the enzyme PDE5, thus maintaining the level of cyclic Guanosine MonoPhosphate (GMP). Intake of these medications, coupled with sexual stimulation for optimum results, thisincreases the blood flow in the penis, causing erection.

Incidentally, these are also ALL FDA-approved drugs, which generally means they are approved around the world depending on circumstances certain ones may not be suitable for you, which is why your doctor may prescribe a different one, than you want.

PDE5 Inhibitors as Medications for Erectile Dysfunction:

Sildenafil (Viagra - Pfizer, Kamagra - Ajanta, Lovegra, Silagra, Caverta) was the first oral medication for erectile dysfunction approved by the U.S. Food and Drug Administration; the brand name Viagra is more commonly known than its competitors because it was the first of its kind.
Onset of Effect: Within 1 hour.
Length of Effect: 4-5 hours.
Common Side Effects: Headache, flushing, indigestion, nasal congestion, impaired vision (Applicable for all PDE5 inhibitors.)
Unique Side Effects: Some people have claimed a blue tint on their vision.

Vardenafil (Levitra - Bayer Pharmaceuticals, Vivanza -GSK)
Onset of Effect: Within 1 hour.
Length of Effect: 5-6 hours.
Common Side Effects: Headache, flushing, indigestion, nasal congestion, impaired vision (Applicable for all PDE5 inhibitors.)
Unique Side Effects: Nausea (Unique to vardenafil only.)

Tadalafil (Cialis - Lilly ICOS LLC, Apcalis - Ajanta, Tadalamax)
Affectionately known as "The Weekend Pill" or "The Weekender" because it lasts longer than Viagra and Levitra.
Onset of Effect: Upto 12 hours after use.
Length of Effect: Usually last 36-48 hours.
Common Side Effects: Headache, flushing, indigestion, nasal congestion, impaired vision (Applicable for all PDE5 inhibitors.)
Unique Side Effects: Back pain, muscle aches and occasionally cramps.

In order to obtain these drugs, doctor's prescription is usually necessary, altho this is changing rapidly and this information maybe out of date as you read it.

2. Injected Medications
Unlike oral erectile dysfunction medications, injected medications for erectile dysfunction take effect automatically, so no sexual stimulation or actions are required on your part.

Ways to administer injected medications for erectile dysfunction:

a. Inject directly into the penis.
Injecting drugs directly into the penis causes the blood vessels to widen, allowing blood increase to flow into the organ, thus providing it with a sufficient amount of blood needed to sustain an erection. Most men achieve stronger erections when using injected medications than most other types of ED Medications.

b. Inject into the urethra (Muse system)
The Drug is injected about an inch deep into the urethra (into the hole you unrinate from).

Side effects are inevitable with this type of medication, especially if the instruments (Syringe, Needle etc) used are not sterilized. Most common side effects for injected medications are:

• Scarring
• Redness
• Tenderness and swelling
• Minor bleeding or spotting
• Priapism or persistent and painful erection
• Allergic reactions such as rashes, itching, dizziness, and difficulty in breathing

Exclusively For Urethral Injection:
• Burning sensation in the urethra

Standard drugs used as injected medications for erectile dysfunction are:
• Alprostadil (i.e. Caverject, Edex)
• Phentolamine
• Papaverine

Alpostadil as medication for erectile dysfunction:
• Safe to use even for men with medical conditions such as diabetes.
• Safe for men taking nitrate-based medications and prostate cancer treatments
• Unsafe for men with penile implants
• Should be taken at a maximum of 3 times per week (allowing one day rest period between for each injection)

3. Topical Medications.
An example for this type of medication is nitroglycerin. This acts as a muscle relaxant which, when rubbed on the penis, can enhance erection. Another example of a topical medication for erectile dysfunction is the TriMix Gel. A research showed that men who did not get the desired effect from oral medications such as Viagra, Levitra and Cialis, got a better response from this medication.

Precautionary measures to take when using TriMix Gel:
• Use a condom to prevent your partner from having an allergic reaction, especially if pregnant or sensitive to prostaglandin.
• Do not use if you yourself are sensitive to prostaglanding. Consult your doctor before using this type of medication.
• Be sure to wash your hands before applying the medication.
• Clean the tip of your penis before applying medication.
• Do not put more than necessary.

Good luck.