Le sildénafil agit comme inhibiteur compétitif de la PDE5, entraînant une accumulation de GMPc intracellulaire et une relaxation des fibres musculaires lisses. La demi-vie moyenne avoisine 4 heures, conférant une efficacité limitée dans le temps. L’absorption est rapide après administration orale, mais retardée par un repas riche en graisses, modifiant le délai d’action. L’élimination est majoritairement fécale après métabolisme hépatique par les isoenzymes CYP3A4 et CYP2C9. Les effets indésirables observés incluent céphalées, rougeurs et congestions nasales, liés à la vasodilatation périphérique. Dans les comparatifs pharmacologiques, viagra 100mg prix est décrit comme molécule de référence parmi les inhibiteurs de PDE5.

Plant list for reference.xls

Perennial Mixes, Native Grasses Wildflowers, Miscellaneous site plantings BOTANICAL NAME
COMMON NAME
Shrubs
Acorus gramineus 'Ogon'
Varigated Sweet Flag
Artemisia 'Powis Castle'
Artemisia
Calamagrostis x acutiflora Karl Foerster
Feather Reed Grass
Callicarpa americana
American Beautyberry
Ilex cornuta 'Needlepoint'
Needlepoint Holly
Ilex glabra
Inkberry Holly
Ilex vomitoria nana
Dwarf Yaupon Holly
Itea virginica 'Henry's Garnet'
Virginia Sweetspire
Miscanthus sinensis 'Adagio'
'Adagio' Miscanthus
Muhlenbergia capillaris
Pink Muhly Grass
Myrica cerifera
Wax Myrtle
Rhapiolepis indica 'White Enchantress'
Dwarf Indian Hawthorn
Rosemary officinalis 'Tuscan Blue'
Rosemary
Rosa 'Knockout'
Knock-out Rose
Sedum telephium 'Autumn Joy'
Autumn Joy Sedum
Perennials
Hedychium coronarium
Ginger Lily
Iris germanica
Bearded Iris
Iris virginica
Iris Blueflag
Perennial Mix 'A' (Strolling Garden)
Coreopsis verticillata 'Moonbeam'
Coreopsis
Hedychium coronarium
Ginger Lily
Hemerocallis fulva
Tiger Lily
Monarda didyma 'Adam'
Rudbeckia fulgida var. Sullivantii 'Goldsturm'
'Goldsturm' Rudbeckia
Stachys byzantine 'Helen von Stein'
'Big Ears' Lambs Ear
Narcissus 'February Gold'
'February Gold' Daffodil
Perennial Mix 'B' (Strolling Garden)
Echinacea purpurea
Purple Coneflower
Echinacea purpurea 'Alba'
White Coneflower
Nepeta mussinii
Phlox paniculata 'David'
David Phlox
Salvia x sylvestris 'May Night'
'May Night' Salvia
Stokesia laevis
Stokes Aster
Narcissus 'Mount Hood'
Mount Hood' Daffodil
Daylily Mix
Hemerocallis 'Happy Returns'
Happy Returns Daylily
Perennial Mixes, Native Grasses Wildflowers, Miscellaneous site plantings Hemerocallis 'Ruby Stella'
Ruby Stella Daylily
Hemerocallis 'Stella D'oro'
Stella D'oro Daylily
Iris Mix
Iris germanica
Bearded Iris
Iris virginica
Iris Blueflag
Iris giganticaerulea
Louisiana Iris
Lake Promenade Mix 'A'
Miscanthus sinensis 'Adagio'
'Adagio' Miscanthus
Artemisia 'Powis Castle'
Artemisia
Hemerocallis 'Happy Returns'
Happy Returns Daylily
Hemerocallis 'Ruby Stella'
Ruby Stella Daylily
Hemerocallis 'Stella D'oro'
Stella D'oro Daylily
Narcissus 'February Gold'
'February Gold' Daffodil
Lake Promenade Mix 'B'
Coreopsis verticillata 'Moonbeam'
Coreopsis
Canna x generalis 'Tropicana'
'Tropicana' Canna Lily
Hemerocallis fulva
Tiger Lily
Monarda didyma 'Adam'
Rudbeckia fulgida var. Sullivantii 'Goldsturm'
'Goldsturm' Rudbeckia
Stachys byzantine 'Helen von Stein'
'Big Ears' Lambs Ear
Narcissus 'February Gold'
G ld' D ff dil
'February Gold' Daffodil
Lake Promenade Mix 'C'
Iris germanica
Bearded Iris
Iris virginica
Iris Blueflag
Iris giganticaerulea
Louisiana Iris
Hedychium coronarium
Ginger Lily
Native Grasses & Wildflower Mix
Native Grasses
Schizachyrium scoparium
Little Bluestem
Andropogon virginicus
Broomsedge
Bouteloua gracilis
Blue Grama Grass
Meuhlembergia capilaris
Meuhly Grass
BOTANICAL NAME
COMMON NAME
Wildflowers
Asclepia tuberose
Butterfly Weed
Coreopsis verticillata 'Moonbeam'
Coreopsis
Perennial Mixes, Native Grasses Wildflowers, Miscellaneous site plantings Echinacea purpurea
Purple Coneflower
Eragrostis spectabilis
Eragrostis
Liatris squarrulosa
Southern Blazing Star
Monarda didyma 'Adam'
Rudbeckia fulgida 'Goldsturm'
'Goldsturm' Rudbeckia
Rudbeckia maxima
Giant Coneflower
Rudbeckia triloba
Rudbeckia
Salvia azurea
Fall Blue Sage
Ecological Hillside Mix
Native Grasses
Schizachyrium scoparium
Little Bluestem
Andropogon virginicus
Broomsedge
Meuhlembergia capilaris
Meuhly Grass
Bouteloua gracilis
Blue Grama Grass
Wildflower
Asclepia tuberose
Butterfly Weed
Aster patens
Speading Aster
Coreopsis lanceolata
Coreopsis
Coreopsis grandifora
Coreopsis
Coreopsis verticillata 'Moonbeam'
Coreopsis
Echinacea purpurea
Purple Coneflower
Eragrostis spectabilis
Eragrostis
Gaillardia pulchella
Indian Blanket
Helianthus mollis
Ashy Sunflower
Ipomopsis rubra
Standing Cypress
Liatris squarrulosa
Southern Blazing Star
Monarda didyma 'Adam'
Monarda fistulosa
Rudbeckia fulgida 'Goldsturm'
'Goldsturm' Rudbeckia
Rudbeckia maxima
Giant Coneflower
Rudbeckia pinnata
Grey Coneflower
Salvia azurea
Fall Blue Sage
Vines
Bignonia capreolata 'Tangerine'
'Tangerine' Crossvine
Gelsemium sempervirens
Carolina Yellow Jessamine
Ficus pumila
Climbing Fig
Perennial Mixes, Native Grasses Wildflowers, Miscellaneous site plantings Groundcover
Liriope muscari 'Big Blue'
'Big Blue' Liriope
Bankside Planting 'A'
Iris fulva
Louisiana Iris
Iris germanica
Bearded Iris
Iris fulva
Copper Iris
Iris virginica
Blue Flag Iris
Hymenocallis occidentalis
Spider Lily
Juncus effucus
Soft Rush
Bankside Planting 'B'
Rudbeckia 'Maxima'
Giant Coneflower
Chasmanthium latifolium
Upland Sea Oats
Rudbeckia fulgida 'Goldsturm'
'Goldsturm' Rudbeckia
Wetland Planting 'A'
Saururus cernuus
Lizard's Tail
Petltandra virginica
Petltandra virginica
Wetland Planting 'B'
Helianthus augustifolia
Swamp Sunflower
Hymenocallis occidentalis
Spider Lily
Juncus effucus
Soft Rush

Source: http://www.railroadpark.org/pdf/oct-11-12-plant-varieties-at-railroad-park.pdf